I live in a house with concrete floors, and the ground floor radiators are fed by pipes coming down the wall from above. Each radiator has a feed pipe to the thermostatic valve which is at the top of the radiator, the return pipe is at the bottom, the pipe runs from here back up the wall.
My question is, I want to re-route the pipes and replce the rads, but when I reconnect, is it really necessary to have the trv at the top? or can I have both valves at the bottom, like every other central heating system I've ever seen!
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