Search found 4 matches

by elscripto
Fri Oct 26, 2007 9:47 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiators not refilling
Replies: 9
Views: 4249

What has changed here? As I read it, the loft extension is not new. What is new is the redecoration on the middle floor. When the radiators were put back after redecoration, were they properly balanced or were the valves just opened up fully? Could it be that the radiators on the middle floor are ge...
by elscripto
Fri Oct 26, 2007 9:41 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiator fails to warm up
Replies: 11
Views: 7112

I agree with what has been said so far but I had one other thought. It sounds like the system maybe isn't properly balanced. In other words, one valve on each radiator should be only partly open so that each radiator gets a share of the hot water. If you have one or more radiators fully open, the wa...
by elscripto
Fri Oct 26, 2007 9:08 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: DIY Heating Not Working - Combi boiler
Replies: 6
Views: 4617

Isolate and drain one radiator. Reconnect it to the valves but leave them off. Remove the blanking plug from the top and add inhibitor (concentrate from a cartridge is easiest). Put the blanking plug back in and turns on the valves. Run the system for a few minutes to get the inhibitor circulating a...
by elscripto
Fri Oct 26, 2007 8:52 am
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: readaiters rattiling,and living room only heats half at top
Replies: 2
Views: 2924

This sound like it's a vibration caused by the water being pumped round by the boiler and being forced through the narrow gap as the valve closes. If there is air in the radiator, the noise could be worse. The fact that the radiator is cold at the top is a clue that there probably is air in it. Use ...
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