Fit new valves

These days, most houses have central heating.

However, if your central heating system is more than a few years old, you may have only one thermostat for the whole house. This means you could be heating every room to the same temperature, wasting energy. If you fit thermostatic valves to all the radiators in your house you can control the temperature of each radiator. This lets you keep some rooms cooler and prevents heat going to waste.