Hi can anyone tell me should the return valves on rads be left full open or just one of them(in the bathroom) to allow water to circulate,when i turn the valves down the system is running quieter (no water flow noise) or will this damage the boiler ?
The system is about four weeks old there in no inhibitor in it so i will put some in any suggestions as to wich one,also should i leave one rad fully open on the flow and return and partly close the returns on the rest ?
A room stat is a requirement of Building Regulations, and common sense because it will save you money.
So are condensing boilers, in almost all cases.
Your rads need "Balancing".
Inhibitor - your manual tells you which ones to use.
The system should have been flushed with the appropriate chemicals before the boiler was fitted. Adding inhibitor should be done when the boiler is first used but better late than never. It could be a waste of time though if there is dirt in the system.
Thanks for your replys the boiler is a conensing boiler,i did do the pipework myself or at least most of it,i did not fit the boiler i left that to a plumber, dont know if the system was flushed but i know there was no inhibitor put in the system as the system was run to check for leaks and never drained to put inhibitor in. I will get a room thermostat put in,will it be ok to leave trvs on all rads but the one where the room stat is ?
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