TRVs. Thermostatic radiator valves are normally filled with a wax like substance that senses the air around them. Expand contract depending on the area to where they’re fitted and can be set 1-5. 5 being fully open more heat required. When the desired temp is reached/drops the wax shuts off or opens the valve
A heating engineer would have to install one. Basically they are only a on/off switch. One wire comes from the boiler to the thermostat. To a spot in the house to give a average house temp. Another wire from the thermostat back to the boiler. They more often than not contain a bimetallic strip, that works on ambiance temperature. A oven on a gas cooker works normally on a bimetallic strip.
Thermostats are now available in the form of two units, a base unit wired in and the other is the sensor which can be sited wherever most appropriate - the sensor can even be moved around. The remote sensor unit sends a wireless signal to the base unit.
So with that type, Karl, if I wanted to keep the living room at optimum temperature I would site the remote unit there whilst the wired unit replaces my existing control unit that is in the hall. Have I got that right?
hc, you might like to think about getting thermostatic valves on your radiators instead of a central thermostat. Each radiator can then be set to its own temperature so you can have each room or area the temp that suits you
TRVs. Thermostatic radiator valves are normally filled with a wax like substance that senses the air around them. Expand contract depending on the area to where they’re fitted and can be set 1-5. 5 being fully open more heat required. When the desired temp is reached/drops the wax shuts off or opens the valve
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