What makes some radiators hotter than others?

Question

What makes some radiators hotter than others? And what can be done about this?

Armand · Accepted Answer

Balancing the central heating,  air into the radiators,  dirt on the bottom of the radiators and pump not strong enough are the most common factors that need to be looked at.

Mal · Answer

Could be the heating system needs to be balanced properly

Martin · Answer

System needs to be balanced or the pump may need replacing

Sean · Answer

The system needs balancing. If all the lockshield valves are open fully then the radiator nearest the boiler will get the hottest as it is getting most of the heat and the radiator furthest away will be cooler as most of the heat has been taken by the rest of the radiators.

You need to turn all the lockshield valves off then open all of them 1/4 turn and put your heating on, let the radiators get hot then adjust the lockshield 1/4 turn at a time give 5 mins for the temp to rise to the desired temp them move to the next radiator. Always work away from the nearest to the boiler

Carl · Answer

There are so many reasons this could be happening, the system incorrectly balanced, pump issues, pipework issues, radiator valve issues, sludge. Seek a professional to take a look at it

Kevin · Answer

Some radiators may need bleed as there could be air in the radiators.   The system may also need balanced so the full system heats at the same time and to the same temperature.

Tommy · Answer

Sounds like you need to balance your radiators. Get a professional out to have a look for you

What makes some radiators hotter than others?

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