Underfloor heating - design and installation guide

Underfloor heating - design and installation guide
Uniclass
JT20 JV50 L75624
EPIC
L634 L2242 L511
CI/SfB
(56.3)
April 2006
Underfloor Heating
Available Through Merchants
UF417
Design and
Installation Guide
STANDARD UNDERFLOOR HEATING
COMPONENTS FOR SMALL
NEW-BUILD RESIDENTIAL PROJECTS
Intelligent Solutions for
Heating Projects
UNDERFLOOR HEATING
Standard Product Range: Design and Installation Guide
About OSMA UFH
A partnership of experience
OSMA Underfloor Heating combines the
specialist skills and experience of two
companies:
Wavin is Europe’s largest supplier of
Versatility, Consistency and Reliability
What’s different about
OSMA Underfloor Heating
Giving you a choice
OSMA UFH products have been designed
product choice including floor panels with
to provide the highest possible heating
pre-cut channels in the insulation to
performance while using materials that will
indicate the positioning and spacing for
last throughout the life of the building.
installation of the pipe on site
The products combine easy installation
Alternatively, you can opt for a basic system
with consistent performance. They ensure
which allows the installer to set the pipe
that the power output from the floor is
centres and layout during installation.
plastic pipe systems in terms of product
range, innovation, logistical services
and geographical presence
ThermoBoard is one of the UK’s major
suppliers of underfloor heating systems.
OSMA plumbed systems offer you a
determined by the product rather than by
the skills or experience of the installer.
The company has pioneered the
development of product-based solutions
OSMA innovation
to underfloor heating for more than a
OSMA UFH products are as easy to use
decade
as conventional radiators. They require
little or no previous underfloor heating
The UK’s most advanced
UFH technology
experience. No specialist tools are
OSMA UFH technology has been
They enable any installer to work more
developed to suit all building construction
quickly to achieve a high quality result.
types typically used in the UK – both
OSMA UFH systems for domestic
concrete-based floors and timber floors.
applications include plumbed systems for
It provides innovative, cost-efficient
all types of floor construction, including:
solutions for all types of environment,
including residential, commercial and
public buildings.
For residential projects
This publication provides guidance on
the design and installation of underfloor
heating using OSMA UFH components
available through Merchant Stockists.
These products are primarily designed for
use in new-build residential applications
up to four circuits.
2
needed for successful installation.
SALES AND TECHNICAL ENQUIRIES
01392 444122
Sand/cement and liquid screeds
Timber battens and timber joists
Fully floating timber floors
The range available through Merchants is
specifically designed to offer efficient and
effective solutions for small and medium
sized heating projects. These may include:
extensions, refurbishment of individual
rooms, conservatories or single dwelling
installations.
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Standard Product Range: Design and Installation Guide
Contents
Further Information
Timber Floors
INTRODUCING UFH
OSMA Underfloor Heating products
2-4
Timber Joist Products
17
Fully Floating Floor Products
18
Battened Floor Products
19
are available for OSMA Underfloor
DESIGN
Design Principles
5-6
Design Procedures
7-10
System Controls
General Considerations
Mixing Control Units
Pressure Testing
23-24
Sales and Technical
Enquiries
Tel: 01392 444122
Fax: 01392 444135
Design Planner
Screeded Floors
Basic Products for Screeded Floors
System Plates
To obtain copies, please contact:
REFERENCE
SITEWORK
14
15-16
Product Guide
20-22
System Verification
12-13
Heating Standard Products Range:
Trade Price List
10-11
OSMA UFH SYSTEMS/
PRODUCTS
Product Range
The following related publications
25
General Information /
Technical Assistance
27
The OSMA UFH Guarantee
OSMA Underfloor Heating is the only UFH
supplier in the UK which engineers and
manufactures its products. Each system
uses the highest specification components.
All systems described in this Design and
Installation Guide are directly backed by a full
product guarantee provided that installation
has been in accordance with the instructions
provided. Unlike some other UFH suppliers,
this guarantee is independently underwritten
by insurance. For full details/terms, contact OSMA
Underfloor Heating.
NOTE: For plumbed systems, this Guarantee
presumes the use of OSMA Flexible Plumbing
Pipe (OsmaGold). The Guarantee may NOT
apply if pipe from another manufacturer
is used.
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Introduction . Contents
3
UNDERFLOOR HEATING
Introduction / Standard Product Range
Introduction
UNDERFLOOR HEATING
RADIANT HEAT
The maximum floor temperature should
Underfloor heating is the most comfortable
As soon as the floor surface becomes
not normally exceed 29°C (although
form of heating. It is unobtrusive,
warmer than the air in the room, it begins
34°C is acceptable in bathrooms).
economical, safe, hygienic and virtually
to radiate. Radiant energy emitted from
maintenance-free. It offers the best
the floor is absorbed by all the other
long-term method of heating a building
surfaces in the room. These surfaces
because it uses low-temperature water,
warm up and begin to radiate, thereby
which in future can be provided without
providing an all-round comfortable
having to burn fossil fuels.
warmth in the room. The air in the
A UFH system is easily formed. Instead
of hanging conventional radiators on
room only becomes warm because it
is in contact with these warm surfaces.
THE OSMA STANDARD
PRODUCT RANGE
The OSMA Standard Product Range has
been designed to enable anyone who is
familiar with radiator heating to confidently
design and install underfloor heating
within standard concrete and screed or
timber floor types.
the wall, you simply make the floor itself
ENERGY EFFICIENT
a large-surface heat emitter by
For product range and selection,
Most new-build constructions can be
incorporating warm water pipe within
see pages 12-19.
kept warm with heating power in the
the floor construction.
range 35-75W/m2. This power output
can be achieved with floor surface
temperatures of just 24-27°C.
Larger projects
For larger and more complex underfloor
heating (and cooling) projects, OSMA
UFH has a range of alternative products
available. OSMA UFH has extensive
experience of partnering with the
largest contractors on the most
technically demanding projects and can
provide a bespoke design service, with
direct-to-site delivery.
4
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Design Principles
Design Principles
An underfloor heating system consists of:
In-floor components and heating pipe
Flow controls of the water into the floor
Room temperature control
MINIMISING HEAT LOSS
If you use a boiler designed to heat the
With any form of underfloor heating it is
water to a higher temperature, it is
important to minimise the amount of heat
necessary to add a water mixing control
that is lost to the underside of the floor.
unit to reduce the temperature of the
Insulating ground floors to Building
These are very similar to the elements
Regulation standards is generally sufficient
of any radiator system. The principle
to restrict the heat transfer downwards.
difference is that the heat emitter is built
However, consideration should be given
into the floor rather than hung on the
to installing higher levels of insulation,
wall.
in line with the trend for increases in
The same form of Heating Primary is
regulatory requirements.
used to distribute warm water around
On upper floors, Building Regulations
the building. Where a spur would be
Part E now require that acoustic
taken off the Primary to a radiator, the
insulation must be incorporated between
same kind of spur is taken instead to a
joists or within the make up of a solid
water flow controller, and through this
floor. This also provides effective thermal
to the pipe circuits in the floor.
insulation.
The temperature of each room is
WATER TEMPERATURE
controlled using a room thermostat and
If you are designing an underfloor heating
a valve to turn ON/OFF the flow of water
system to heat an entire building, some
into the floor.
modern combi and condensing boilers
LOWER WATER
TEMPERATURE
are able to supply water, at the required
An underfloor heating system uses water
underfloor heating system. Such a
at a much lower temperature than is
boiler’s internal pump can be used to
required by radiators.
circulate the water around the pipe
To achieve the necessary heat output, a
water entering the underfloor heating
system (see pages 20-22).
lower temperature, directly to an
circuits.
floor surface temperature of maximum
29°C is generally required. Depending on
the conductivity of the floor and the floor
finish, this may be achieved with a water
temperature in the underfloor pipes of
between 40°C and 60°C. Such
temperatures can be easily produced
from a heat pump or from solar heating.
By contrast, to generate sufficient air
convection, radiators generally require
water at 70-80°C, and this can only be
produced easily by burning fossil fuels.
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Introduction . Design Principles
5
UNDERFLOOR HEATING
Design Principles
Design Principles continued
Control Pack with Manifold
WATER FLOW CONTROL
Whichever type of boiler is used, for
projects larger than 20m2 the heated water
is generally distributed to separate pipe
circuits via a manifold. Electrically
operated actuators on each branch of the
manifold, linked to a room thermostat, can
be used to control the flow of water into
the separate circuits/zones.
Where necessary, a Water Mixing Control
Unit can be added to the front of the
manifold (see pages 20-22).
COMBINED SYSTEMS
It is possible to add a section of underfloor
heating to a radiator system, provided:
the boiler has sufficient spare capacity
the diameter of the spur from the
Primary to the water mixing controller
is large enough to deliver the quantity
Single Port Manifold
of heat required by the underfloor
heating
There are two ways to ensure that the high
temperature water from a radiator system
does not cause the floor to become too
hot:
In small projects that involve just
one zone and a maximum area of
about 20m2, it is possible to use Single
port manifold and control pack:
If individual room control is required
Water Mixing Control Unit for One or Two Circuits
and water is to be taken from the boiler
primary pipework, this unit allows a
small area to be run independently of
an existing central heating system. It
wil require a simple by-pass and a
thermostat which must be purchased
separately.
Mixing Control is used:
High temperature water from the
radiator Primary is mixed with water
returning from the floor to produce a
stream of water into the floor at a
temperature that can be adjusted to
a level which will not result in the floor
overheating.
6
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Design Procedures
1
How Much Heating Power Do I Need ?
Experience shows that in most new or
refurbished buildings complying to April
2002 Part L Building Regulations, heating
power of 35-75W/m2 is sufficient to
maintain internal temperature of 20ºC.
Provided the floor finish thermal resistance
is not greater than 0.150 m2 K/W (1.5 Tog),
this amount of power output can be
generated by any of the forms of UFH
described in this Guide, using pipe at
200mm centres. Consequently, it may
not be necessary to make detailed heat
loss calculations.
Where a space is to be heated that
may have higher heat losses, the power
requirement should be calculated, using
the calculation method outlined on
page 11. Use this calculation method for:
rooms with large areas of glazing
Underfloor heating is an effective way of
form of heating may be required to
heating a conservatory. However, the high
maintain an internal temperature of 20°C
buildings constructed to pre-April
rate of heat loss through the extensive
on occasions when the external
2002 Part L Building Regulations
areas of glazing means a supplementary
temperature falls below 7-8°C.
rooms with more than 2 external walls
2
CONSERVATORIES
What Heating Power Will UFH Provide ?
The power output equation for UFH is:
Occasionally, detailed heat loss
The type of floor finish – for example,
(
calculations – as prepared in accordance
tiles, timber or carpet – or the spacing
with the calculation method outlined on
of the heating pipe can affect the transfer
page 11 – show that 95W/m2 power
of heat from the floor through to the
output is insufficient. This can sometimes
floor surface.
)
floor surface room air
x 10.6 W/m2
–
temperature
temperature
As a consequence, it can be seen that with
a floor surface of 29°C and air
temperature of 20°C, power output will
2
be 95W/m . In most projects, this will
be sufficient.
happen in bathrooms, for example, where
the available floor area is small by
comparison with the heat loss. In such
cases, the underfloor heating can be
29ºC is the maximum design surface
supplemented by installing a towel
temperature (above that the floor may
radiator perhaps plumbed in as part of
become uncomfortable, although in
the UFH circuit.
Use these Tables not only to confirm that
the power output will be sufficient but also
to determine the Flow/Return temperatures
that will be required.
Bathrooms the design temperature
may be increased to 34°C).
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Design Principles . Design Procedures
7
UNDERFLOOR HEATING
Design Procedures
UFH System Output (W/m2)
Screeded Floors
Resistance
of Floor Finish
m2 K/W
200 mm
300 mm
200 mm
300 mm
200 mm
300 mm
10mm Timber
0.070
123
101
107
88
91
75
20mm Timber
0.140
90
79
78
69
66
58
10mm Carpet/Hard Tile
0.100
113
94
98
82
83
70
10mm Carpet & Underlay
0.150
91
80
79
70
67
60
4mm Vinyl – Linoleum
0.018
150
114
131
99
112
85
10mm Ceramic Tiles
0.012
151
118
132
103
112
87
25mm Marble
0.011
140
111
122
97
103
82
Floor Finish
Flow/Return Temperatures & UFH Pipe Centres (mm)
65-55°C
Floor Finish
55-45°C
UFH System Output (W/m2)
Floating & Battened/Joisted Floor
Resistance
of Floor Finish
m2 K/W
60-50°C
Flow/Return Temperatures & UFH Pipe Centres (mm)
65-55°C
60-50°C
55-45°C
200 mm
200 mm
200 mm
10mm Timber
0.070
79
75
56
20mm Timber
0.140
86
65
64
10mm Carpet/Hard Tile
0.100
75
70
52
10mm Carpet & Underlay
0.150
63
61
47
4mm Vinyl – Linoleum
0.018
86
55
64
10mm Ceramic Tiles
0.012
87
75
65
25mm Marble
0.011
79
76
59
EN1264 Theoretical Heat Output for Screed, Floating & Batten/Joisted OSMA UFH systems
8
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Design Procedures
3
What Type Of Floor Do I Have?
Generally, the options include –
2. Screw Clips
grooved panels of chipboard or plywood.
If the insulation is soft – for example,
The floor deck is held in place purely by its
standard density or high density expanded
own weight.
polystyrene such as Jablite or mineral
The Standard Product Range includes
Timber battens
wool such as Rockwool – staples will
50mm thick Floating Floor Panels that
Softwood joist
not grip the pipe sufficiently tightly.
incorporate pre-cut pipe channels with
Screw Clips should be used.
factory-fitted aluminium heat diffusers, and
3. System Plates
a polythene film fixed over the top of these.
These are vacuum-formed plastic panels
They are used in place of plain insulation
with moulded pipe grippers that are laid
panels to support a fully-floating deck.
over the top of whatever insulation you
The conductivity of OSMA Floating Floor
purchase. System Plates hold the pipe
Panels is much lower than expanded
SCREED
securely, and at regular spacings.
polystyrene, and this helps minimise
Most screeded floors are formed by laying
OSMA System Plates allow the pipe to
downward heat loss.
sand/cement mix 65-75mm thick over
be set as close as 50mm centres, which
insulation. Before the screed is laid, edge
is very useful when taking pipe through
insulation should be set all round the
Timber Battens, Joists
and I-Beams
corridors to several separate rooms.
periphery of the room to allow for thermal
Battens are used either where the floor
The pipe can also be held diagonally.
loadings are to be higher than can be
Whatever the method chosen, attention
supported by a fully-floating floor or where
should be paid –
the floor deck is to be formed from planks
Screed
Fully-floating timber
Manufactured timber I-beams
Once the type of floor construction has
been determined, the appropriate
products may be selected from the
Standard Product Range (see pages 12-13).
movement in the screed during the year.
When creating an underfloor heating
system, heating pipe is fixed to the top
of the insulation, just before the screed
is laid, so that the heating pipe ends up
within the thickness of the screed.
where the ends of the pipe circuit(s)
come together below the site of the
Water Flow Controller/Manifold
We recommend that the heating pipe
at the junction between floor and wall,
is set at 200mm spacing, which is
where the pipe changes from running
sufficiently close to enable the full heating
horizontally to vertically
rather than be allowed to fully float.
Softwood joists are commonly used in
Intermediate Floors although
manufactured I-Beams are often used
instead because they can be stronger and
are more stable dimensionally.
performance to be achieved, whilst
In most underfloor heating systems, these
minimising the amount of pipe used.
details are the only parts that are visible.
The Standard Product Range provides 3
The OSMA Standard Product Range
different ways of securing the pipe to the
includes accessories such as Sweep
top of the insulation:
Bends and Clamps to ensure that these
1. Staples
that must be nailed down to a support,
details can be achieved neatly.
The Standard Product Range includes
50mm thick Batten/Joist panels, similar to
Floating Floor Panels but 340mm wide,
which are intended to fit between 50mm
thick battens and automatically space
these at nominal 400mm centres, or to be
fitted between softwood joists at similar
for example, extruded polystyrene such
FULLY-FLOATING
TIMBER FLOORS
as Polyfoam or Styrofoam, or polyurethane
These are floors where panels of insulation
be fitted up from below between I-Beams.
such as Celotex – staples will provide a
are used to support a timber floor deck
secure fix for the pipe.
that is normally formed from tongued and
If the insulation you purchase is firm –
4
centres, either from above or below, or to
For Product Range, see pages 12–13
Pressure Testing
Underfloor heating pipe is arranged in
CONTINUOUS PIPE LENGTHS
or Heating Panels have been installed in an
separate pipe circuits within the floor
If the pipe circuit is a continuous pipe
I-Beam joisted floor, each circuit should
construction and terminated at the water
length, the test pressure should be 3 bar.
be tested to at least 18 bar.
flow controller. Prior to connection to the
This will be sufficient to determine whether
After each pipe circuit has been pressure-
water flow controller, each pipe circuit
the pipe has been punctured during
tested, connect the pipe ends to the Water
should be pressure-tested, using an
installation, by a nail for example.
Flow Controller. Do not pressure test pipe
PIPE LENGTHS WITH FITTINGS
circuits AFTER connection to the Water
If the circuit includes OsmaGold fittings, as
Flow Controller.
OsmaGold Pressure-Tester. The pressure
test should be dated and recorded as a
permanent record (see pages 23-24).
it may when Chipboard Modules are used
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Design Procedures
9
UNDERFLOOR HEATING
Design Procedures General Considerations
■
5
Water Flow Control
SMALL PROJECTS
Or:
so that it cannot operate if there is no
In small projects, covering areas less than
It is recommended that the supply to the
heated water in the Primary. The pipe
20m2, either Single Port Manifold and
Water Mixing Controller should be taken
providing water to the Controller should
Control Pack, or Water Mixing Control can
from the heating Primary, either before
have sufficient capacity to supply the
be used.
or after any timed Diverter Valve, which
quantity of heat required by the section of
controls the supply to radiators for
UFH attached to it.
AREAS GREATER THAN 20m2
In larger projects a manifold should be used
up to a maximum of four ports.
example, as required. The electrical supply
to the Water Mixing Controller can be
timed or otherwise, as required, although
in general the wiring should be arranged
6
Room Temperature Control
Either standard or programmable room
(generally the Boiler Live) is fed through the
thermostats may be used (purchased
room thermostat to the controller.
separately).
In projects having more than one
temperature zone, the flow of water into
each circuit is controlled by a 2
Wire Actuator on each circuit branch,
In small projects, where there is a single
zone, the electrical feed that is used to
enable/disable the Water Mixing Controller
7
which is opened/closed under the control
of its associated room thermostat. The
OSMA UH1-M Wiring Centre connects
each room thermostat to the appropriate
actuator. The operation of any one
actuator will turn on the Water Mixing
Controller and boiler and initiate the flow
of heated water to it.
Project Design
Once the most appropriate products have
Important Notes
been selected, a dimensioned design/
Never bend 15mm OsmaGold pipe
GENERAL
CONSIDERATIONS
installation drawing should be produced. A
more tightly than a radius of 120mm.
Response times:
Design Planning Grid is produced on page
If you have bent the pipe too tightly and
Setting pipe within a 65-75mm screed
30 of this brochure to help with
it has kinked the pipe needs to
will form an underfloor heating system
project design.
be replaced
with quite high thermal mass. From
The drawing should show where each
Always cut OsmaGold pipe using an
cold, it will have to warm up the mass
floor component and the Water Mixing
OsmaGold cutter or sharp secateurs.
of the screed before the top surface
Controller is to be sited. This will also
Never use a saw blade
can begin to radiate. Once warm,
assist in producing a full schedule of the
materials required.
INSTALLATION
PROCEDURES
Generally, products should be installed
in the following stages:
1. Clear the space to be heated
Always use pipe inserts whenever a
joint is formed
Never use joints in pipe if pipe is
going to be placed in screed
it will continue to produce heat for
several hours even after the boiler
has turned off
Underfloor heating in a timber floor has
a smaller thermal mass to warm up
Always allow screeds to dry naturally.
before it starts to work but it will cool
Don’t use UFH pipe as a way of
down more quickly after the boiler has
speeding up the drying process
turned off
2. Install Floor Components and Pipe
Additives:
3. Conduct pressure-test
Generally, the additives that the boiler
4. Install Water Mixing Controls and
or radiator manufacturers specify will
have no effect on the OsmaGold pipe.
connect circuits
If in doubt contact OSMA UFH
5. Connect up Electrics
6. Commission
10
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
General Considerations
Project Design continued
HEAT LOSS CALCULATION
To calculate the actual heat losses from
a room do the following sum:
Next, calculate the area (m2) of the exposed
Volume of room (m3)
x
floor space that may be heated.
Difference between design internal
2
Area of surface (m )
x
Divide total heat required (Watts) by available
and external temperatures
x
Temperature difference between the
floor area (m2) to calculate Power required
(W/m2) (see example below).
U-value equivalent
=
two sides of the surface (°C)
x
Air Change Loss (Watts)
U-value for the surface
=
20
00
mm
The U-value equivalent to use is:
3
Surface Loss (Watts)
AC / hr
Add up the amounts for each surface
1.0
0.33
Bedrooms
Total Surface Loss (Watts)
1.5
0.50
Living Rooms
Add to this figure the energy needed to
2.0
0.66
Bathrooms
Next sum together Surface Loss and
Air Change Loss
=
80
0m
m
2400mm
1200mm
Typical for
1200mm
heat any incoming cold air as follows:
U-value
mm
0
00
mm
00
12
Total Loss (Watts)
Example
INPUT DATA
Room
STUDY
2
SURFACE
U-value
Exterior Walls
0.30
Floor Area
6.00
m
Windows & Doors
2.30
Height
2.40
m2
Internal Walls
0.90
Exterior Wall
9.60
m
2
Ceiling/Roof
0.50
Interior Wall
12.00
m2
Air Changes per Hour
1.50
2.40
2
Glazing
m
DESIRED ROOM TEMPERATURE
20
°C
ROOM TEMPERATURE
SUBTRACT
OUTSIDE TEMPERATURE
-2
°C
AVERAGE INTERNAL ROOM TEMP
EQUALS
TEMPERATURE DIFFERENCE
20
°C
15
°C
5
°C
SUBTRACT
EQUALS
22
°C
INTERIOR ROOM DIFFERENCE
EXTERNAL WALL
Area (Minus) Glazing
9.60
m2
U-value
MULTIPLY
0.30
Temp Diff
MULTIPLY
22
Watts Loss
°C
EQUALS
°C
EQUALS
°C
EQUALS
°C
EQUALS
63.36
WINDOW & DOOR
Area
2.40
U-value
m2
MULTIPLY
2.30
Temp Diff
MULTIPLY
22
Watts Loss
121.44
INTERNAL WALL
U-value
Area
12.00
m2
MULTIPLY
0.90
Temp Diff
MULTIPLY
5
Watts Loss
54.00
CEILING / ROOF
Area
6.00
U-value
m2
MULTIPLY
Volume
14.40
m3
MULTIPLY
0.50
Temp Diff
MULTIPLY
AIR CHANGE LOSSES
Temp Diff
MULTIPLY
22
°C
22
Watts Loss
Per Hour
0.50
66.00
Watts Loss
EQUALS
TOTAL LOSSES
158.40
463.20
DIVIDE BY
USABLE AREA
6
EQUALS
TOTAL REQUIRED OUTPUT W/m 2 (USEABLE AREA ONLY)
77.20
This figure may now be checked against the Power Output tables on page 8
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Design Procedures . General Considerations
11
UNDERFLOOR HEATING
Product Range
Screed Floors
25UH050
15UH153
15UH196
15UH230
15UH323
15UH400
PART
CODE
PACK
QUANTITY
1200 x 600 x 50mm
Plain Insulation
25UH050
1
25m x 150mm
Multi Height Edge Expansion Foam
15UH153
8
1500 x 800mm System Plate
15UH196
18
Screw Clips
(Bag of 50)
15UH233
1
Staples for 15mm OsmaGold Pipe
(Box of 300)
15UH230
1
Staple Gun
15UH323
1
Insulation Joint Tape
15UH400
1
OSMA Plate Clips
(Pack of 25)
15UH234
1
OSMA Plate Tack Clips
(Pack of 25)
15UH235
1
PART
CODE
PACK
QUANTITY
1200 x 340 x 50mm
Straight Joist Panel
30UH059
20
1200 x 600 x 50mm
Straight Batten Panel
25UH053
5
1200 x 340 x 50mm
(3) Loop Return Panel
25UH056
10
1200 x 50 x 50mm
Plastic ‘L’ Bracket
15UH700
30
PART
CODE
PACK
QUANTITY
15mm x 50m Coil
15HC160
1
15mm x 100m Coil
15HC180
1
15mm x 15mm Straight Connector
15HC510
5
Branch Tee 15 x 15 x 15mm
15HC542
5
Elbow 90˚ 15mm
15HC530
10
Blanking Caps 15mm
15HC740
10
15UH235
Floating/Batten/Joisted Floor
30UH059
25UH053
25UH056
15UH700
OsmaGold Pipe & Fittings*
15HC160
15HC180
15HC542
* OsmaGold Pipe & Fittings are available from your
local OsmaGold stockist
15HC530
15HC740
15HC510
12
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Product Range
Single Room Controls
48UH585
PART
CODE
PACK
QUANTITY
1-2 Circuit Control Pack
(For Connection to Heating Primary)
48UH585
1
1-2 Circuit Control Pack
(For Connection to Radiator Branch)
48UH550
1
PART
CODE
PACK
QUANTITY
Manifold Mixing Unit (inc. Pump)
48UH580
1
2 Port Manifold
67UH872
1
3 Port Manifold
67UH873
1
4 Port Manifold
67UH874
1
Port Thermometer
47UH888
1
1" Isolation Ball Valve
47UH585
2
2 Wire Actuator (240V)
52UH802
1
Wiring Centre
UH1-M
1
Programmable LCD
Thermostat (240V)
PRT-M
1
48UH550
System Controls
48UH580
67UH874
47UH888
47UH585
Programmable LCD Thermostat with
Domestic Hot Water Timer (240V)
52UH802
PRT/HW-M
1
UH1-M
PRT-M
PRT/HW-M
Accessories
15UH236
15UH305
15UH239
47UH555
PART
CODE
PACK
QUANTITY
Pipe Clamps
15UH236
2
Curved Pipe Supports
15UH239
2
Y Connectors for 48UH550
47UH550
2
1/2" Isolation Ball Valve for 48UH550
47UH555
2
Circular Saw Blade
15UH305
1
OSMA Infrared Thermometer
15UH500
1
OSMA Installation/Service Pack
15UH691
1
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Product Range
13
UNDERFLOOR HEATING
For Screeded Floors
Basic Products For Screeded Floors
Supplied as:
Part
Number
either:
❚ OSMA Screw Clips
15UH233
option
Screw Clip Handle
15UH300
or:
❚ OSMA Staples
with
Staple Gun
15UH230
15UH323
Also required:
❚ Edge Insulation
Multi-Height 25m x 125mm
15UH153
❚ OSMA 15mm Heating Pipe
(OsmaGold)
see page 12
❚ Control Unit, Manifold and
Room Thermostat or
Single Room Controller
B
A
see page 13
❚ Sand/cement screed
–
❚ Insulation
–
D
C
E
Procedure
1 Ensure flat and level sub-floor.
2 Place edge insulation around the
perimeter of the room (see A).
3 Lay plain insulation, with staggered
joints, to cover the required area
Recommendation: tape joints between
5 Feed the pipe from the centre of
laid (so that, if the pipe is damaged
the coil. DO NOT REMOVE THE
during screeding, any fault can be
PACKAGING FROM THE PIPE COIL.
detected immediately and rectified).
insulation panels to prevent ingress of
screed (see C).
6 Secure the pipe to the insulation in
accordance with the layout design,
4 Mark out proposed pipe layout on
the surface of the insulation panels
using Staples or Screw Clips as
appropriate (see above).
200mm in from the wall.
Recommendation: follow a serpentine
pattern, with pipe at 200mm centres,
preferably running in the longest
direction of the room (see D).
Alternatively, follow a spiral pattern at
14
6 At point below where the Water Mixing
Controller is to be installed, use Curved
Pipe Supports and Pipe Clamps to hold
the pipe neatly in place.
❚ Insulation type and thickness should
be chosen to satisfy Part L Building
Regulations
❚ Staples or Screw Clips to secure
pipe to insulation. Use Staples for
7 Once the pipe is installed, pressure
200mm centres. This will put less force
test PRIOR to screeding. Keep pipe
onto the staples (see page 16, image F).
under pressure, while screed is being
SALES AND TECHNICAL ENQUIRIES
01392 444122
Requirements
FAX
01392 444135
rigid insulation, Screw Clips for soft
insulation
EMAIL
[email protected]
UNDERFLOOR HEATING
For Screeded Floors
System Plates
Supplied as:
Part
Number
Individual OSMA System Plates:
– 1500 x 800mm = 1.2m2
15UH196
Also required:
❚ Edge Insulation
Multi-Height 25m x 125mm
15UH153
❚ OSMA 15mm Heating Pipe
(OsmaGold)
see page 12
❚ Control Unit, Manifold and
Room Thermostat or
Single Room Controller
A
see page 13
❚ Sand/cement screed
–
❚ Building adhesive
–
C
B
Procedure
D
E
1 Ensure flat and level sub-floor.
A
B
C
D1
2 Place edge insulation around the
perimeter of the room (see A).
D2
E
F
G1
3 Lay plain insulation over the sub-floor.
4 Position first System Plate so that the
G2
H
square corner of the plate with a single
nodule is placed into the corner of the
room (see B).
5 Lay and fix subsequent plates in the
same orientation, locking neighbouring
7 Once the System Plates are in place,
plates together by overlapping one
fix them down locally to the top of the
row of castellations (see C).
insulation, in each corner and in the
NOTE: Locking the Plates together
centre of the room, using either Plate
prevents movement and ingress of
Anchor Clips 15UH234 or Plate Tacks
screed between joints.
15UH235, as this helps to keep the
6 Follow the laying sequence guide
above to minimise cutting & wastage
F
System Plates from lifting after the
heating pipe has been inserted (see F).
(see D).
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Basic Products . System Plates
15
UNDERFLOOR HEATING
For Screeded Floors
System Plates continued
8 Install the heating pipe in a spiral pattern
F
G
at centres to achieve required output
(usually 200mm centres is adequate).
Initially install pipe at 400mm centres
into the centre of the room, then reverse
out to achieve overall pipe layout at
200mm centres (see F).
9 Along the straight runs, pipe may be
unrolled from a standing position (see G).
10 Where a bend or loop is required,
insert the pipe carefully between
nodules (see H).
H
I
J
K
IMPORTANT: Do NOT damage System
Plate nodules or kink the pipe.
L
N
M
11 The multiplicity of the Plate castellations
O
13 If a liquid screed is to be used, use
means 90° bends, loops and offsets can
15mm pipe off-cuts to hold down the
be easily created. Where a loop
edge insulation gaiter (see P).
is required (at the centre of a room for
P
14 The installed heating circuit is now ready
example), the diameter should be min.
for the screed. Within the System Plates,
300mm to relieve pipe stress
the pipe is well protected from foot traffic
(see H, I, J & K).
& evenly distributed loads (see Q).
11 Where the UFH pipework converges at
the manifold, the pipe may be run off the
Q
Plate and screw-fixed using Screw Clips
Accessory Part No: 15UH233 x 50,
Curved Pipe Supports 15UH239 x 2
& Pipe Clamps 15UH236 x 2 can also
be used to protect and secure pipe
against the wall as the pipe exits the
Requirements
screed (see L, M, N & O).
❚ Insulation type and thickness should
12 Once the pipe is installed, pressure test
be chosen to satisfy Part L Building
PRIOR to and DURING screeding.
16
SALES AND TECHNICAL ENQUIRIES
01392 444122
Regulations
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
For Timber Floors
Timber Joist Products
Supplied as:
Part
Number
OSMA Batten/Joist Panels
(50mm insulation –
pre-cut channels):
1200 x 340mm
30UH059
OSMA End Panels:
(50mm insulation –
pre-cut channels):
1200 x 340mm = 0.41m2 [approx.] 25UH056
Plastic ‘L’ Brackets
[OR (for installation from below)
small battens]
15UH700
Also required:
A
❚ OSMA Heating Pipe
(OsmaGold)
see page 12
❚ Control Unit, Manifold and
Room Thermostat or
Single Room Controller
see page 13
B
C
Procedure
1 Measure and cut the ‘L’ Brackets to fit.
2 Nail ‘L’ Brackets to the inside of the
joists. Position so that the top vertical
edge of the Brackets is flush with the
top of the joists (see A).
NOTE: When on a suspended floor, lay
some boards to stand on.
3 Lay the pre-cut Insulation Panels and
End Panels onto the Brackets. Take
care not to stand on the panels (see B).
4 Notch the joists as necessary to
provide pipe route from bay to bay (see
C).
5 Lay pipe by pressing down carefully into
the pre-cut grooves. Again, take care
not to stand on the panels (see D).
6 Pressure test pipe when layout is
complete.
7 Chipboard or solid floor may now be laid
(see E).
Requirements
❚ When working on suspended floors,
always follow required safety
D
procedures, in accordance with Safety
at Work Act, and use necessary safety
E
equipment
NOTE:
❚ Notches must be cut in accordance
with building regulation requirements
❚ Do NOT cut notches into the top of a
manufactured I beam
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
System Plates . Timber Joist Products
17
UNDERFLOOR HEATING
For Timber Floors
System
FloatingPlates
Floor Products
Supplied as:
Part
Number
OSMA Floating Floor Panel
(50mm insulation –
pre-cut channels):
1200 x 600mm = 0.72m2
25UH053
OSMA End Panel:
(50mm insulation –
pre-cut channels):
1200 x 340mm = 0.41m2 [approx.] 25UH056
Also required:
❚ OSMA Heating Pipe
(OsmaGold)
see page 12
❚ Control Unit, Manifold and
Room Thermostat or
Single Room Controller
see page 13
B
A
C
D
Procedure
1 Lay loop return End Panels along each
6 Installed within the pre-cut grooves, the
pipe is well protected from foot traffic
of the ‘short’ ends of the room (see A).
and evenly distributed loads (see G).
2 Lay Floating Floor Panels between the
loop return End Panels, ensuring the
7 Pressure test pipe when layout is
complete, prior to installing floor deck.
pre-cut channel line up (see B).
3 Follow the laying sequence above to
minimise cutting and wastage. Use plain
F
E
insulation panels in areas that will fall
under fixtures/fittings (see C).
4 Once all the panels are in place, install
pipe by pressing carefully into pre-cut
grooves (see D).
G
5 Ensure the pipe is held securely when
fitting into the loop return End Panels.
Along the straight lengths, the pipe can
be installed standing up, using a press
of the foot (see E & F).
18
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
For Timber Floors
Timber Batten Floor Products
Supplied as:
Part
Number
OSMA Batten/Joist Panels
(50mm insulation –
pre-cut channels):
1200 x 340mm
30UH059
OSMA End Panels
(50mm insulation –
pre-cut channels):
1200 x 340mm = 0.41m2 [approx.] 25UH056
Also required:
❚ OSMA Heating Pipe
(OsmaGold)
see page 12
❚ Control Unit, Manifold and
Room Thermostat or Single
Room Controller
see page 13
❚ 50 x 50mm timber battens
A
B
C
D
E
F
Procedure
1 Lay 50mm batten against the wall.
2 Lay a loop return end panel (see A) at
each end of the batten space.
3 Fill Batten/Joist Panels to complete the
first row of insulation against the edge
batten (see B).
4 Butt the next batten up against the side
of the first row of insulation (see C).
8 Install pipe within the pre-cut grooves
❚ OSMA UHF Batten/Joist Floor Panels
(see F).
9 Pressure test pipe when layout is
complete, prior to installing T&G floor
deck.
If the floor finish is to be a wooden floor:
It may be possible to lay this directly over
the UFH Panels, omitting T&G deck
(Consult supplier of floor deck).
5 Then continue across the floor, with
battens between panels of insulation
(see D).
Requirements
For ceramic or stone floor finishes:
30UH059, these have been designed
to provide a UFH system between
50 x 50mm battens at 400mm centres
❚ Circular Saw Blade 15UH305.
Foiled panels can be cut using a
handsaw and sharp knife. However,
we recommend use of a circular saw
with this specially designed blade for
cutting through insulation and foil
Battened floor construction with T&G
plywood deck will provide suitably rigid
If secret nailed floor finish is to be installed:
6 Nail or screw-fix battens securely to the
base (Consult floor finish supplier).
G
H
sub-floor (optional).
7 Once all Insulation Panels are in place,
notch battens to provide pipe route from
bay to bay (see E).
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Floating Floor Products . Timber Batten Floor Products
19
UNDERFLOOR HEATING
Mixing Control Units
Mixing Control Units
Individual items
2–4 Port Manifold
(Part No’s: 67UH872 – 67UH874)
(available from OSMA UFH)
25mm internal diameter plated brass
2-Wire Actuator
body with integrated regulation valves.
(Part No. 52UH802)
Manifold distribution arms form 2–4
heating circuits
2 x connections to the rest of the system
with 1” union nuts (female flat connection
for 1” Isolation Ball Valves (available from
OSMA UFH), or for connecting an OSMA
UFH Control Pack
Integral air release and filling/draining
point
Port Thermometer
Each port equipped with a “Euroconus”
(Part No. 47UH888)
pipe adaptor to receive 15mm
OsmaGold pipe
Supplied complete with wall brackets
and screw fixings
Flow distribution arm
Regulating valves to regulate and isolate
the water flow for each circuit.
Return distribution arm
Control valves for operation by 2-Wire
Actuators (available from OSMA UFH).
Clamp-on Port
Thermometer
Control Pack (Incl. Pump)
(Part No: 48UH580)
(Part No. 47UH890)
Water mixing valve for use with UFH
systems connected to a boiler that
produces water at temperatures higher
than 65°C. The Control Pack simply
screws into the OSMA UFH Manifold
distribution arms.
The Control Pack incorporates:
2 x 1” female flat connections to the rest
of the system (incl. Gaskets)
1” Isolation Ball Valve
Secondary circulator suitable to serve
(Part No. 47UH585)
up to 4 x 100m heating circuits
A water mixing valve that achieves
faster warm-up times by not mixing flow
water until the desired flow
temperature has been reached
20
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Mixing Control Units
System
Mixing Control
Plates Units continued
A
B
C
Procedure A
Assembly of Heating Arms
Procedure B
Mixing Unit
1 Lightly screw a plastic pipe adaptor
4 Screw the Control Pack onto the
(self-sealing) onto each of the fitting
Manifold arms using the gaskets
adaptors. These are compression
supplied. This produces a watertight
fittings designed to connect 15mm
seal (see H).
OsmaGold pipe (see A).
D
5 Attach 1” Isolation Ball Valves directly
If Port Thermometers (47UH888) are
to the Control Pack OR, if a Control
being used:
Pack is not required, attach the Isolating
Screw into place on the return arm and
Valves direct to the Manifold arms. This
seal using PTFE tape or liquid sealant,
allows for complete isolation of the
and refit the plastic pipe adaptors (see B).
Manifold.
2 The wall brackets supplied allow for
the creation of a staggered manifold
assembly. Position the flow arm on the
top (as shown) (see C).
3 Remove the blue wheel heads from the
E
NOTE:
– All joints need checking prior to filling
and testing on site for their integrity.
– Temperature Controller and Temperature
Gauge are pre-installed (see G).
F
manifold return and screw on the
actuator base, then carefully attach the
Requirements
2-Wire Actuators 52UH802 (see D and
❚ A standard by-pass should be
E).
installed just below the flow and
NOTES:
return
– If the Manifold has been designed to
provide control for one heating zone only,
a motorised valve can be installed on the
feed to the Manifold instead of fitting an
G
H
Actuator to each individual circuit. 15mm
joiners can be supplied.
– Each manifold arm is equipped with a
pre-installed dual purpose 1/2” air
releasing /draining valve (see F).
– The valve rotates so that in the ‘up’
position (as shown), air can be released
when filling and commissioning the
UFH system. When in the ‘down’
position, water can be drained out of the
Manifold.
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Mixing Control Units
21
UNDERFLOOR HEATING
Mixing Control Units
Mixing Control Units continued
2-WIRE ACTUATOR
(Part No: 52UH802)
Normally closed 230V Actuator for
use with OSMA UFH Self-Assembly
Manifold
No special mounting tools required.
Simply screw onto return arm control
valves
2-Wire Actuators for use with UH1-M
wiring centre. (See below for wiring
configuration).
Wiring Arrangement
22
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
Pressure Testing
System
Pressure
Plates
Testing
Procedure
Once the UFH pipe has been installed,
pressure test each circuit to verify the
integrity of the pipework and connections.
Preparation
Testing
After the test
1 Ensure the circuit is complete. Use
4 Open both valves on the unit fully and
9 Release the return line valve,
blanking caps or blanking plugs to
gently pump water into the circuit using
allowing the surplus water back into
blank off any open ends.
the hand pump (replenishing the water
the reservoir.
2 Load water into the tank of the
pressure testing unit and connect the
circuit flow tube end to the outlet
connector of the tank.
3 Connect the circuit return tube end to
the return connector on the tank where
fitted, or via a controllable valve to a
bucket or similar.
in the tank if necessary) until a steady
10 Disconnect the flow and return tube
flow WITHOUT ANY AIR BUBBLES is
ends from the Manifold, and
seen to be flowing through the circuit
reconnect to the relevant ports.
back into the tank.
5 At this stage, close the return line valve.
Then manipulate the pump SLOWLY
whilst monitoring the pressure gauge.
6 Continue pumping until a pressure of
some 18 bar shows on the pressure
gauge. At this stage, stop pumping and
close the flow valve. This pressure
should be maintained for 30 minutes.
7 After 30 minutes, check the pipework
and fittings for evidence of a leak:
– If there is no sign of leakage in any
of the joints, and
– there is no reduction in pressure
Requirements
❚ Hydraulic Pressure Tester - available
from most hire shops
❚ 15mm straight connections for
attaching OsmaGold pipe to pressure
the circuit can be presumed to be
tester
secure.
NOTE: The procedure explained
8 Complete the pressure test record
(see page 24), not forgetting to enter
applies to a “Rothenburg” manual
pressure-testing unit
the time and date.
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Mixing Control Units . Wiring Arrangements . Pressure Testing 23
UNDERFLOOR HEATING
Pressure Testing
Pressure Test Record
Tested by:
Date:
Project:
Project Reference:
Floor
24
Zone
SALES AND TECHNICAL ENQUIRIES
01392 444122
Circuit
Test Notes
FAX
01392 444135
Pass
Signed
EMAIL
[email protected]
UNDERFLOOR HEATING
Design Planner
System
Design Planner
Plates
Detailed planning and design of each
For guidance, we provide an example
UFH project is essential in order for work
below.
on site to proceed efficiently. This also
helps scheduling of the components and
materials required, and reliable estimation
When creating a design, we recommend
that you use a grid with a scale of each
square = 50 x 50mm.
of costs.
2500mm
4000mm
1000mm
2500mm
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Pressure Testing . Design Planner
25
UNDERFLOOR HEATING
Notes
26
SALES AND TECHNICAL ENQUIRIES
01392 444122
FAX
01392 444135
EMAIL
[email protected]
UNDERFLOOR HEATING
General Information
■
How to Order
■
Technical Advice
General Information and Ordering
Health and Safety
Supply
OSMA Underfloor Heating. Goods are
The relevant provisions of the following
All OSMA systems described in this
sold subject to Company conditions of
legislation should be adhered to on site:
Design and Installation Guide are
sale.
supplied through a nationwide network
It is the responsibility of the Installer/
of Merchant Distributors. For details of
Customer to ensure that the system is
your nearest stockist, contact OSMA
correctly installed and that the
Underfloor Heating.
boiler/heat source has sufficient
Health and Safety At Work Act 1974
Ordering
capability to satisfy the demand of the
Management of Health and Safety
To order, be ready to quote the Product
UFH system, or conversely is not overly
At Work Regulations 1999
Name and relevant Part Number,
powerful.
together with quantities required.
Part numbers are clearly indicated in
For sales enquiries, or to
place an order
bold type throughout this Design and
Please contact
Installation Guide [EXAMPLE: 15UH110]
OSMA Underfloor Heating:
Conditions of sale
Sales /Orders
The Company will not accept
Tel: 01392 444122
Construction (Design and
Management) Regulations 1994
Control of Substances Hazardous to
Health Regulations 1988
Manual Handling Operations
Regulations 1992
References
Reference should be made to:
Building Regulations
(England and Wales):
Approved Document ‘L’ (Thermal)
Building Regulations
(England and Wales):
Approved Document ‘E’ (Acoustic)
responsibility for the malfunction of any
installation not designed by OSMA
Underfloor Heating, which also includes
Fax: 01392 444135
Email: [email protected]
using components not supplied by
Technical Advice and Assistance
OSMA Underfloor Heating systems are
Services include:
For prompt assistance, contact
backed by a comprehensive technical
CAD product and application details
OSMA Underfloor Heating:
advisory service. This is available to
on disk
Technical Enquiries
provide expert assistance at every stage
Computer aided project design, for
of a project, from planning and product
Tel: 01392 444122
more complex projects for which a
selection to installation and maintenance.
charge is payable
Fax: 01392 444135
Email: [email protected]
Call-off service for efficient product
scheduling
OSMA UFH Design and Installation Guide 2006
LITERATURE
01249 766333
Underfloor Heating
Notes . Information & Ordering . Technical Advice
27
Underfloor Heating
Available Through Merchants
Design and
Installation Guide
For screeded and
timber floors
This brochure provides detailed guidance
on the design and installation of OSMA
Underfloor Heating systems available
through merchants. These systems are
primarily designed for use in residential
applications.
This OSMA UFH product range:
Is designed for time-saving, easy
installation – without requiring special
tools or experience
Provides consistent, controllable heat
output and performance
Enables achievement of a high quality
result every time
OSMA also provide design and
production of bespoke systems to
meet specific application requirements
or to suit specialised construction
projects. These include acoustic and
sprung floors, specialist screeds, high
strength floating floors, and industrial
ISO 9001:2000
floors – or for multiple unit projects
requiring large numbers of identical
installations (housing or flats). OSMA
UFH technology can also be used for
cooling. For information, contact
OSMA Underfloor Heating
Apple Lane
Sidmouth Road
Exeter Devon EX2 5GL
Tel: 01392 444122
Fax: 01392 444135
Email: [email protected]
The range is supplied by OSMA Underfloor Heating which is the trading name of ThermoBoard Limited.
OSMA is a registered trade mark of Wavin Plastics Ltd and is used by ThermoBoard Limited under licence.
ThermoBoard Limited operates a programme of continual product development, and therefore reserves the right to
modify or amend the specification of their products without notice. All information in this publication is given in
good faith, and believed to be correct at the time of going to press. However, no responsibility can be accepted
for any errors, omissions or incorrect assumptions. Users should satisfy themselves that products are suitable for the
purpose and application intended.
www.wavin.co.uk
UF417
OSMA Underfloor Heating.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement