How to balance radiators

When your heating system was installed the size of the radiators was established according to the size and position of the various room and the temperatures that are usual normal for bedrooms sitting rooms and hallway, for example. Thermostatic radiator valves with ensure that the temperature is correct, but there is another factor. If the radiators are not balanced the system will not be correct. Balancing the radiators will ensure that this is correct and knowing how to do it is a handy trick that can make the difference between a miserable winter and a harmonious one. By doing this you will ensure that all radiators are at the same heat level.

This is not difficult to do, you do not have to be a gas, oil, or solid fuel registered engineer to do this but, you do need to know the technique and have the time to go through the process methodically. The signs that your radiator circuit will need balancing will be different radiator temperatures at different points of the house; it is often the case that those radiators furthest from the pump, often fitted within the boiler itself, will be significantly colder than the others. The process can be both time consuming and tedious, don’t do it if you haven’t the time pr patience!

You will certainly need two clip-on pipe thermometers; we suggest you hire these as they can be expensive. First open all the radiator valves full, including the small lock Lockshield valves which normally have a cover on the, a pair of grips, or as key will be required to adjust them. Start at the nearest radiator to the pump and turn the Lockshield valve fully closed and then open it until the inlet pipe is eleven degrees Centigrade higher than that of the return pipe. Repeat this on all the radiators and you should find that they are all recording the same temperature difference between the feed and return pipes.

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