Wall Hung Combination Boiler &

Wall Hung Combination Boiler & Water Heater
or Space Heating Boiler
95% Efficient (AFUE)
Up to 10:1 Modulation
Environmentally Friendly
Low NOx Emissions
Integrated Indirect Tank
for Superior DHW
Performance
Vent up to 100 ft. in PVC,
CPVC & Polypropylene
Natural Gas &
Propane Models
High Efficiency Fire Tube Combi Boiler
The Mascot FT is a combination (“Combi” - heating and domestic hot water) or heating–only wall mounted boiler packed
with features. It easily satisfies the space heating and hot water needs of the modern home.
Powering the Mascot FT is an advanced fire tube heat exchanger that uses the latest in heating tube technology.
Our heat transfer tubes are constructed with an inner finned aluminum core and an outer corrosion–resistant stainless
steel sleeve. This combination results in a system that delivers quick heating response, exceptional efficiency, and years
of reliable service.
Advanced Straightforward Controls
Saves You Money
Every Mascot FT is equipped with the advanced
Greatly reduces heating bills when compared to older,
Laars Integrated Control System
low -efficient boilers -up to 20% lower! Potentially saves
Easy -to -use dial
and push button
thousands of dollars in heating bills over the life of the
boiler.
input system with
Up to 95% efficiency (AFUE) equals lower fuel use
large backlit display
Outdoor reset technology balances your home’s
Functions are clearly
displayed for quick set-up and diagnostics
Quick access buttons for temperature control
and boiler status functions
Outdoor reset feature for fuel savings
heating needs with the outside temperature
Mascot FT modulates to a
lower firing rate during cool
days to reduce fuel use even
further
Maximum Rebate Eligible –
check federal, state, and
Enough Hot
Water for Everyone
The Laars Mascot FT combi models
use a “hybrid water heater design”
local rebates for upfront savings!
When the half gallon of hot water begins to be used
by your faucet, shower, etc., the boiler fires and
that combines the best of tankless
immediately begins to produce more hot water.
water heating and tank type water
The half gallon mini-indirect tank makes sure you have
heating into one compact system.
hot water quickly and the boiler makes sure you never
A half gallon mini-indirect tank is kept charged with hot
run out of hot water for as long as you need it!
water, always on standby to ensure that you have hot
The best of both worlds! Hot water fast and an endless
water available as fast as possible.
supply – never run out again.
Reliable & Innovative Design
Automatic Air
Elimination Valve
Modulating
Gas Valve
High Performance
Blower
Blower performance curve
matches required heat
exchanger air flow resulting in
ideal air to fuel ratio.
Easily convertible from natural
gas to propane
Integrated Domestic
Hot Water Indirect Tank
(Combi Models Only)
Clean Burning Burner
Pre-mix mesh burner uses fuel
efficiently and produces ultra-low
NOx and CO emissions.
Domestic hot water available at all
times for quick response.
Advanced Fire Tube
Heat Exchanger
• Reliable mini-indirect tank
design
• Premium grade stainless steel
• Plentiful domestic hot water
flow rates
Laars Integrated Control
Stainless steel with aluminum
core transfer tube heat
exchanger offers superior
performance and 95% efficiency
at low pressure drops.
• Outdoor Reset
• Dual stage anti-freezing
mechanism
• Conformal coating
encapsulates control board
protecting it from moisture
Condensate Trap
• Built-in gas leak detection
(alarm will activate and the
unit will shut down if a leak
is detected)
Boiler Pump
Laars Mascot FT Heat Exchanger Advantage:
Our stainless steel sleeved aluminum core heating tubes transfer heat
10 times faster than stainless alone.
-Maximizes the Mascot FT efficiency and heating response
Hot flue gas is evenly divided along the inside of the multi channel fire
tubes while causing turbulent flow.
-Releases stored heat trapped inside the hot flue gases to better transfer
heat from the boiler to your home
-Reduces stress points in the heat exchanger for longer boiler life
Heating surface is up to five times larger than other condensing boilers
-Results in a smaller and lighter weight unit
Advanced Fire Tube
Heat Exchanger
Technology
MASCOT FT Specifications
SPECIFICATION
Input, Max Fire
Output, Max Fire
Weight, Unit
HxWxD
Turndown
Heating "CH" Supply
Heating "CH" Return
DHW Outlet
DHW Inlet
DHW Flow Rate
Minimum Flow Rate
Gas Inlet
Efficiency
Condensate Line
Gas Supply Pressure
Pressure Relief Settings
Air Intake Collar
Exhaust Outlet Collar
Vent Diameter &
Equivalent Length
Vent Material
Fuel
Power Supply
Warranty
UNITS / CONDITION
Input, MBH (kW)
MBH (kW)
lbs. (kg) lbs. (kg)
Inches
—
NPT
NPT
NPT
NPT
35°F Rise – GPM (l/m)
45°F Rise – GPM (l/m)
77°F Rise – GPM (l/m)
GPM (l/m)
NPT
AFUE
NPT
In WC
psi (kPa)
Inches (cm)
Inches (cm)
Combi Boilers
MFTCW140
140,000
133,000
100 (45)
29 x 17.3 x 15.5
5:1
Heating Only Boilers
MFTCW199
199,000
189,050
110 (50)
32 x 19.6 x 16.3
10:1
1”
1”
3/4”
3/4”
7.1 (27)
5.5 (21)
3.2 (12)
9.8 (37)
7.7 (29)
4.8 (18)
0.5 (1.9)
1/2”**
inches / ft.
—
—
Volts / Hertz
—
3/4”
MFTHW80
MFTHW100 MFTHW120 MFTHW140
80,000
100,000
120,000
140,000
74,400
93,000
111,600
130,200
90 (41)
110 (50)
29 x 17.3 x 15
5:1
1 1/4”
1 1/4”
—
—
—
—
—
—
3/4”
95%
1/2
3.5 - 14
30 (207)
3 (7.6)
3 (7.6)
2 / 50*
3 / 100
PVC, CPVC, Polypropylene, SS AL29-4C
Natural Gas or Propane
120 / 60
Limited 10 Year Warranty
MFTHW199
199,000
189,050
125 (57)
32 x 19.6 x 16.3
10:1
*Propane Models are limited to 25 equivalent feet of vent of 2" diameter vent.
**3/4" coupling provided.
Laars Heating Systems Company reserves the right to change specifications,
components, features, or to discontinue products without notice.
800.900.9276 • FAX 800.559.1583 (Customer Service, Service Advisors)
20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • FAX 603.335.3355 (Applications Engineering)
1869 Sismet Road, Mississauga, Ontario, Canada L4W 1W8 • 905.238.0100 • FAX 905.366.0130
www.Laars.com
Litho in U.S.A. © Laars Heating Systems Co. 1607
Doc. 1309C