My existing gas central heating system is soon to have all the old radiators replaced. Should I ask the plumber to fit isolating valves to the inlet/outlet pipework on each of them. Would this eliminate the need to drain the whole system if at a later date there was a problem with a single radiator?
htg engineer wrote:No need - that's what radiator valves are for.
Thanks htg engineer, I assume that additional isolating valves for each rad would only be benificial if the TRVs and lockshields were also to be replaced as well as the radiator, therefore eliminating the need to drain the whole system.
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