joidevie Posted July 8, 2005 Share Posted July 8, 2005 Can anyone recommend the best method for a new ( wet ) central heating system ? I have the luxury of awaiting a final coat of 5cm cement on both the ground floor and the first ( the first floor is a new concrete brick floor ). I've been told that copper and concrete do not mix well. Do I still use copper piping threaded through a gaigne ( colour / dimension ? ) and bury that within the top coat of concrete ? Or is this just 'not done' ? Back in the UK I used all plastic pipiing but I'm not very convinced about the quality of the stuff I've seen down here in Aude 11 - or is possible to use this PER tubing sold pre-gaigned in red ? Any recommendations for the best connection fittings if using plastic ? Any tips would be happily received !Also, I'm looking to 'bury' cabling for : Loudspeakers, telephone & satellite etc in the concrete. What colour / size gaigne is recommended for that ? Thanks. Link to comment Share on other sites More sharing options...
Opel Fruit<P><BR>Opel Fruit, Dept. 53<P> Posted July 9, 2005 Share Posted July 9, 2005 Personal view - I would not bury heating pipework (or sanitary pipework) at the depth you are considering. Normally, channels are left in the concrete deep enough to house the gaine and then covered with concrete after being capped.I have asked another plumber friend here and he sort of pulled his face. Link to comment Share on other sites More sharing options...
Mysfloss Posted July 9, 2005 Share Posted July 9, 2005 why wouldn't you bury the pipes at 5cms? Link to comment Share on other sites More sharing options...
Opel Fruit<P><BR>Opel Fruit, Dept. 53<P> Posted July 9, 2005 Share Posted July 9, 2005 Dependant on traffic and load, I've seen similar (over a 100mm drain pipe) crack in no time.You are going to place a skin of concrete over something flexible... Link to comment Share on other sites More sharing options...
Mysfloss Posted July 10, 2005 Share Posted July 10, 2005 So are your saying that they are not deep enough ?The reason that I have asked is this, when you pour a screed over underfloor heating it's about five -seven cms Link to comment Share on other sites More sharing options...
Opel Fruit<P><BR>Opel Fruit, Dept. 53<P> Posted July 10, 2005 Share Posted July 10, 2005 Underfloor heating across a large-ish floor area is somewhat different. And one tends to tile over which clearly spreads localised loads well. And the piping used is small diameter, rather than one or two large pipes/conduits.I doubt there will be any problems! Link to comment Share on other sites More sharing options...
joidevie Posted July 11, 2005 Author Share Posted July 11, 2005 So I'm still a little confused ! Probably best just run the piping exposed along the wall or above a false ceiling then ? Link to comment Share on other sites More sharing options...
Opel Fruit<P><BR>Opel Fruit, Dept. 53<P> Posted July 11, 2005 Share Posted July 11, 2005 Personally speaking, yes. Wiring isn't a major issue underfloor through gaine, at least if you have a problem you can pull new cabling through. Pipes and frost in the floor are there forever, and if you have a problem? Link to comment Share on other sites More sharing options...
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