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    15mm pipe work on hot water system when fitting combi

    The hot water from your new combi boiler will be at mains pressure, the same as your cold water. For this reason the pipework can be 15mm. Your old system which i guess was gravity fed from a hot water cylinder and header tank required 22mm pipework simply to increase the flow rate as the...
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    Microbore central heating - replace rad with towel rail

    You could remove the tails from your existing rad, clean them up and fit them to your towel rad with a little ptfe. This would ensure they will fit your existing valves. A problem you will have though is finding a towel rad that will replace your existing rad without altering any pipework so you...
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    tight taps

    Without seeing the type of taps you have it's hard to diagnose. If they're the standard type then your handyman may have overtightened the gland nut resulting in the stiffness.
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    loss of pressure

    There could be a leak under your downstairs floor, You wouln't find it without inspecting the pipework as the water would just drain away into the ground. Its unlikely but just an idea...
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    Help with radiator sizing

    Hello. I was wondering if anyone had a quick and easy method of determining the size of a rad required to heat a particular room, Without being too technical. Lets say its a living room @ 21 degrees I would multiply the cubic feet of the room by 5 Plus 10% for general losses...
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