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ok so if I just clip it sparingly i.e not as it passes through every joist I should be ok?

does plastic pipe expand more length ways than expand in diameter. So using nailing clips to fix the pipes to the notched joists may not be as much of a problem as with copper?

is using nailing clips to clip the plastic pipes to the notched joists ok then?

Is it not advisable to use nailing clips to clip to the notched joists then?

Hey if running polypipe in notched joists and fixing with nailing clips will it cause noise through expansion and contraction as the heating goes on and off or is that just with copper pipes?

hey when running plastic central heating pipes in the void below the downstairs floorboards do they need lagging? I presume if they did it would make the job awkward as the pipes are usually clipped with nail in clips tight to the side or underneath the joists not really allowing space for lagging.

What size radiator would you roughly recommend the room has on external wall and a 1.5 meters squared double glazed window.

Hi what size radiator would I need for my living room. It measures width 4.2 meters, length 4.7 meters and height 2.8. Online calculators vary from 7000btus to over 10000 btu. Thanks for any help.

It says 300mm is that from the edge of the window to centre of flue?

Hey I am looking at having a new boiler fit in a different position in my house. I wondered if there was a requirement for how close to a window the boiler flue can be positioned?

the radiators going in a different position though I need to change the pipe work.

il check under the floor to see if theres a valve. I have heard of people taking a radiator of and connecting to the 15mm valve with a nut and oil and polypipe. But the radiators I have are old ones with 3/4 valves.

to change a downstairs radiator

How can I drain a vented central heating system with no drain point? Is it ok to cut the central heating pipe under the floor downstairs and let it drain in to the ground. After tying up the ball cock.

Hey is it ok to connect on to old 1/2 copper pipes with soldered 15mm fittings?

What do you mean by depends on the condition? Could the pipework be too corroded or full of sludge to re-use?

Is it likely an engineer will just remove the back boiler and cap the heating pipework that when to it off. And re-connect on to it were the new boiler will be positioned?

Is sludge and rust in the pipework also a concern?

Hey I am about to move in to a house with an old back boiler heating system, with a tank and cylinder supplying the hot water. I am wanting all this ripping out and replacing with a combi boiler. I know the back boiler/ heating system hasn't worked for a while. I was looking at replacing all the...