If some rooms in your house are roasting and others are like an ice chest, it's possible that your central heating system has become unbalanced.
Close the valve
Radiators heat up in turn, which means those nearest the boiler will often be warmer. By partially closing the lockshield valve on those radiators you can allow more hot water to flow to the ones further away.
Use a radiator thermometer
Ideally, you need to use radiator thermometers and adjust each radiator in the order in which they heat up. Turn off the lockshield valve, place a thermometer at either end of the radiator and open the valve slowly until the temperature at either end is almost the same.
No thermometer? No problem
If you don't have radiator thermometers you can gradually adjust the lockshield valves on every radiator until you feel the system is balanced. A good rule of thumb is to reduce the flow in the warmest rooms and increase it in the coldest and then make slight adjustments bit by bit.
Important information regarding our DIY help and advice
We try to make the advice on our website (www.HomeServe.com) as useful and reliable as possible. However, the purpose of this advice section of the website is to provide homeowners and private landlords with general guidance and useful tips only. It doesn't necessarily deal with every important topic or cover every aspect of the topics with which it deals and might not be relevant or appropriate in all circumstances. It is not designed to provide professional advice or financial advice and should not be relied on as such. Click here to read the disclaimer in full.