Also, the thermostatic radiator valves will shut themselves down sooner, so this will save you money, but at the expense of having a cooler room.

A better solution, conservation experts say, is to close radiator valves or hot-air ducts in unused rooms.

Add room thermostats, a timer, and thermostatic radiator valves.

If just one radiator is cold, check that the radiator valves are turned on.

Mr. Berry said that radiator valves come with different-sized vent holes that allow for fine-tuning a heating system.

The arms are set to rotate six inches off the surface, and their speed is controlled by the radiator valve.

The radiator valve is used to adjust the speed of rotation.

Finally, it is important to open radiator valves fully.

If just one radiator is cold, start by checking that the radiator valves are turned on.

It is sometimes used for central heating systems and 15mm adaptors are used to connect it to radiator valves.