heating controls - Chorley Community Housing

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www.adactushousing.co.uk
Heating
Controls
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There are four main elements to controlling a central
heating system:
• Room Thermostat
• Programmer/Timer
• Thermostatic Radiator Valves (TRVs)
• Cylinder Thermostat
Room Thermostat
Room thermostats are an important tool for saving energy within the home.
Up to 10% can be saved on heating bills just by turning the thermostat
down by 1ºC.
A room thermostat controls the heating system by sensing the temperature
of the air around it and switching the heating on or off as appropriate. For
example, if the thermostat is set to 21ºC, when the air reaches that
temperature the heating turns off. When the air temperature falls below
21ºC the heating turns back on. This only works when the heating system
has been switched on at the controls, either manually or through a
timer/programmer.
Manually turning the thermostat to different temperatures to control the
heating should be avoided. For example, some people like to turn the
thermostat to maximum when the weather is very cold. This is not
advisable, since the boiler will stay on constantly in an attempt to get the
house to an unnecessarily high temperature; this will waste energy and
money. It is advisable to set the thermostat to between 18-21ºC, according
to comfort levels, then leave the thermostat alone to keep the temperature
of the home constant.
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The position of the room thermostat within the house is important. Avoid
very draughty or frequently hot areas, above heaters, behind TVs and
computers. Air must be allowed to circulate around it in order for the
thermostat to read the temperature of the room correctly. One of the best
areas is in the lounge area.
Timer/Programmer
Timer/programmers allow the home to be heated according to
different lifestyles.
Setting a heating system with a programmer avoids the heating being left
on all day when there is no one at home. The programmer can be set so
that the system will come on before you wake up and before you get home
in the evening, providing heating and hot water when it is needed. It is
recommended allowing at least half and hour for the heating and hot water
to heat up to the desired temperature.
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Programmer/timers allow the heating system to come on automatically at
the times that have been pre-set. There are many different types of
programmers, some of which allow more complex programmes to be set,
but they all carry the same principle. First, ensure that the clock is set to
the correct time. Then choose which heating and hot water function is
required. The options are generally for the heating to run continuously, to
be completely off or run according to the programmed times.
Programme in the times of day that heating and hot water are required.
Generally you can choose once, twice or three times a day depending on
the programmer. There is also usually a ‘boost’, ‘advance’ or ‘override’
button which allows the pre-programmed settings to temporarily override
the programme until the next set time.
Thermostatic Radiator Valves (TRVs)
TRVs allow the heating to be controlled in individual rooms, and are
considered a good way of improving the energy efficiency of the home.
TRVs prevent unnecessary heating of occasionally used or un-used rooms.
Correct use can reduce fuel bills.
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TRVs are numbered dials fitted to radiators and, like a room thermostat,
sense the temperature of the air around them. However, they do not
control the boiler, but control the flow of water going in to the radiator to
which they are fitted.
Once the temperature of the air meets the temperature set on the TRV, the
flow of water to the radiator is cut off. Dials should be adjusted in each
room to find the most comfortable temperature. The higher the number on
the dial the higher the room temperature will be. In rooms such as
kitchens and unused spare rooms TRVs can be set to low temperatures.
There should not be a room thermostat in the same room as a TRV. If there
is, keep the TRV set to maximum and allow the room thermostat to control
the heating system.
Cylinder Thermostat
A cylinder thermostat controls the temperature of the hot water held inside
the hot water cylinder.
Hot water needs to be heated to 60ºC, in order to kill harmful bacteria and
keep the water at a comfortable temperature to avoid scalding.
The thermostat is attached to the hot water tank and senses the
temperature of the water in the tank. It works in a similar way to a room
thermostat by turning the water heating on when the temperature of the
water falls below the set temperature, and turns the water heater off when it
reaches the desired temperature. The thermostat should be positioned one
quarter to one third of the way up the tank and set around 60 - 65ºC.
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Getting in touch
Head office: 01942 608715
Turner House, 56 King St
Leigh, Lancs WN7 4LJ
South office: 0161 232 6030
Parkway 5, Parkway Business Centre
Princess Road, Manchester M14 7HR
North office: 0161 230 4070
Elizabeth House, off Victoria St,
Openshaw, Manchester M11 2NX
West office: 01942 263630
82 Railway Rd,
Leigh, Lancs WN7 4AN
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Adactus Housing Association Ltd is a charitable housing association regulated by the Housing Corporation
Registration No. LH0131. Registered under the Industrial and Provident Societies Act 1965.
Registration No. 16668R. Registered Office: Turner House, 56 King Street, Leigh, Lancashire WN7 4LJ