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The emitters on the sketch are the size I will need to buy, i.e. they are the units required to give the correct (all are slightly larger) output for the room after applying the correction factor detailed above. Room heat loss below Hall 902W, Bedroom 1 1201W, Bedroom 2 621W, Bedroom 3...

O.K. I think I have finally mastered the whole image thing. This is a very simple sketch. The 'sensible' option I refered to above involved putting a manifold in the space below the floor roughly where the door between the dinning room and hall is. Then feeding each of the emitters on...

I see I have opened a huge debate. I am a bit sceptical about new fangled technology however I have seen heat pumps in action working well all through last winter at low costs so i am convinced this is the way forward. I had decided on using a Diakin system, it uses R410A refrigerant, I...

Thanks for your thoughts I have a sketch on my desk of the layout which I will post tomorrow. Below I have answered your other questions, fingers crossed I have grasped it right! How did you work out how much the rads needed to be oversized? I used the figures from the engineer who is going...

Thanks Tony, I am very interested in your points of view. I appreciate valves etc are restricted, I was just comparing a joint in copper pipe to that in speedfit, the internal sleeve reduces the internal diameter and therefore restricts flow? I can't find anything documenting flow...

Hi, Having spoken with 3 different plumbers and got 3 totally different answers I have decided I had better try to get some impartial advice before proceeding down the wrong path! I have just moved into a nice 1970's bungalow. Having spent all summer insulating the place I now have a nice...