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Energy efficiency: Draught proofing and radiator valves

Draught proofing

Draughts enter your home in gaps around doors, windows and floors, accounting for up to 20% of lost heat. Wherever you can feel cold air coming in, warm air is going out.

Most draught proofing materials are cheap and widely available from any DIY store. The quality of the material will affect its performance and durability, so try to choose products which meet the standard BS 7386. This may be indicated on the product label.

There are several specialised types of material, including foams, brushes, sealants, strips and shaped sections of plastic and rubber, so read the packaging and choose carefully. You can get further information from the Energy Savings Trust .


Make a draught proofing door snake

It's easy to make a draught proofing door snake. You can use any old material and it will help make your rooms warmer.



Adequate ventilation is just as important as draught proofing. Without it your house will become stale and stuffy and prone to condensation.

Ventilation is essential if you have solid fuel fires, gas fires or a boiler with an open flue. Make sure you have your chimneys swept regularly and check your airbricks for any blockages.


Thermostatic radiator valves

Thermostatic radiator valves (TRVs) let you control the temperature of each room separately. So they help you reduce your heating bills.

You might like to consider fitting them in rooms that tend to overheat such as kitchens or conservatories, or rooms where you like to increase the temperature for occasional short periods, such as spare bedrooms.

Don't fit a TRV in the same room as a room thermostat as it will prevent the room thermostat from turning off the heating when the right temperature is reached.


How they work

When the sun shines into a room or a crowd of people make it warm, this type of valve can help to make the room more comfortable by reducing the flow of hot water to the radiator.

The number on the valve corresponds to a specific air temperature. Once you have selected a number, the thermostatic valve will maintain this temperature.


  • Modified: Jul 12, 2016 8:37:58 AM