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Many people may fiddle with their radiator dials as the chilly weather sets in, without truly understanding what those small numbers signify. These aren't merely decorative - they're known as thermostatic radiator valves (TRVs) and are numbered from one to five. However, contrary to common belief, they don't indicate the temperature of the radiator itself.
Instead, British Gas engineers clarified that they sense the room's temperature and then adjust the radiator to achieve the desired warmth. TRVs feature a numbered dial, typically ranging from zero to five, with each number corresponding to a specific temperature range. So, for instance, you could have a cosy living room set to three or four, while an unoccupied guest room is set to one or a kitchen already heated by the oven is set to two.
As reports the Express , the engineers advised: "All you need to do is turn the dial on the TRV in each room so it is only as warm as you want it. This greater control over your heating can help reduce the amount of energy you use, which can in turn save money." Radiator numbers How do these controls function? A TRV consists of a head and a body and it regulates the flow of water to your radiators.
When the room reaches the preset temperature, it prevents the r.
