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New radiator, plastic polypipe and earthing query

Postby mr_vampy » Sat Feb 06, 2010 12:29 am

Hoping someone here can be kind enough to give me some advice/info on a query for a friend of mine.
He's planning to replace his old single panel radiator to a new double panel one. At the moment the two pipes going into the radiator comes up from the centre and goes outwards to the radiator valves with lots of exposed pipework. He would like to get rid of the majority of the exposed pipes and as plastic polypipe is flexible, he wants to know whether he can join plastic polypipe to just above where the copper pipes comes up from the solid floor and directly into the radiator valves. He realises that using the plastic pipe will break the continuity of existing metal pipes which is used for earth bonding. How would he go about reinstating the continuity?
Any advice/info would be greatly appreciated.
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Simply Build It

Postby htg engineer » Sat Feb 06, 2010 1:18 pm

10mm2 earth to gas pipework within 600mm of meter and to mains cold water supply (where it enters the house, just after the main stop tap) - is all you need now.

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Postby DEEARR2 » Sat Feb 06, 2010 7:36 pm

Generally speaking all pipework is bonded at the boiler plumbing rig however, the new rad should have an earth tag fitted, usually at the bottom header, where a 2.5mm earth wire can be connectd. To be totally compliant all services should be cross bonded as per htg engineers recommendation.
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