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Discuss Pre insulated underground pipe? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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deeper the better but 500mm is min i think
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Uponor was 750mm IIRC
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Just tell him how much the pipe and transition kit is, it'll put him off easily.
We used flex energy last time as customer decided to put heat pump across the garden path, 6 Mtrs of duo 32mm and transition kits was about £400 / £30 p/metre.
The bend radius on flex energy pipe is 600mm so we dug the trench and managed to terminate vertically. Some of the pipe is very very stiff. In that case you'd need the entry kits each end which will add another £150-£200 to each end.
As someone else suggested, your 20 metre run plus fittings will cost £1000 +
Where's it going to be that far away? Garage?
We used flex energy last time as customer decided to put heat pump across the garden path, 6 Mtrs of duo 32mm and transition kits was about £400 / £30 p/metre.
The bend radius on flex energy pipe is 600mm so we dug the trench and managed to terminate vertically. Some of the pipe is very very stiff. In that case you'd need the entry kits each end which will add another £150-£200 to each end.
As someone else suggested, your 20 metre run plus fittings will cost £1000 +
Where's it going to be that far away? Garage?
He was not overly worried about the price the other bloke gave him. Or at least he didn't seem to be.
The reason that it will be that much of a run is because.
It will be external oil boiler and the only place I can get it away from Windows etc it would have to go about 1.5 Mtrs from conservatory, because of how the cottage is built the easiest way to get in will be to run 8 Mtrs underground then 4 Mtrs up wall and into the bedroom, then reduce hot and cold down to 15mm then run up into the roof space then along about 8 Mtrs then down into the airing cupboard in the bathroom.
If I could put it at the back of the house then I could pop the pipes through the wall into a downstairs toilet.
The reason that it will be that much of a run is because.
It will be external oil boiler and the only place I can get it away from Windows etc it would have to go about 1.5 Mtrs from conservatory, because of how the cottage is built the easiest way to get in will be to run 8 Mtrs underground then 4 Mtrs up wall and into the bedroom, then reduce hot and cold down to 15mm then run up into the roof space then along about 8 Mtrs then down into the airing cupboard in the bathroom.
If I could put it at the back of the house then I could pop the pipes through the wall into a downstairs toilet.
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underground pipe is not very flexible at all, and as Nostrum says, you have special fittings to convert to copper etc and usually a specialised crimper is used. On the Rehau you can use preformed elbows to get you nice and neatly up the wall but again they are expensive and bulky once you fit the shrouds and insulation. You wouldnt be able to bend any of the makes out of the ground, up a wall and then into a loft without knocking a hole out about 2 foot square!!! tell him it will look stupid and he'll have such a bad dead leg that you wouldnt want to waste his money doing an installation that will not give him the best efficiency for his money. If he still wants it doing, get it in writing that you have told him the pitfalls and give him a huge quote.
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