Pipework for downstairs radiators on new builds

[Mgrant]

Hi on some new new build houses I plan to first fix the up stairs radiators in 15mm copper coming up though the floor at the pipe centers for the radiator. i,e rad. length add 45mm per side and the correct distance from the finish wall. However I am debating how to feed the downstairs radiators, this pipe work is usual feed behind the dot and dab plaster. What do people find is the best way of doing this. Thanks for any advice.

 

[wattsie1987]

22mm copper primarys to 2 zone valves then manifolds. x2 return manifolds 10mm plastic pairs to each rad with foil insulation tape behind drops and pipes centers of rads 100mm above base of rad. V plates after drylining pushfit chrome m&f elbows into valves.

 

[Mgrant]

Thanks for the advice may drop in 10mm plastic and use a back box. Is it then usual to use back boxes for the upstairs radiators?

 

[ShaunCorbs]

Thanks for the advice may drop in 10mm plastic and use a back box. Is it then usual to use back boxes for the upstairs radiators?

back box wtf do it right

and you can do upstairs the same or have them coming straight up into the valve (copper)

 

[Mgrant]

You not recommend back boxes?

 

[ShaunCorbs]

You not recommend back boxes?

no how do you seal around/infill

 

[JCSPLUMBING]

They're called first fix triangles. I like them personally, I think they look smart.

 

[ShaunCorbs]

They're called first fix triangles. I like them personally, I think they look smart.

manthorpe make them

 

[Mgrant]

Thanks I'll have to see what my plumbers merchant stocks. Do you chase them in to way at the first fix stage? At the center of the rad?

 

[ShaunCorbs]

Thanks I'll have to see what my plumbers merchant stocks. Do you chase them in to way at the first fix stage? At the center of the rad?

http://www.manthorpe.co.uk/SiteData...age/Radiator Pipe Guide & Seal Literature.pdf

guide and seal one

 

[JCSPLUMBING]

I like them. Ive used the speedfit brackets and thought they were rubbish

 

[JCSPLUMBING]

James1 I don't mean to be rude but how do you not know this stuff? If you are a plumber

 

[ShaunCorbs]

James1 I don't mean to be rude but how do you not know this stuff? If you are a plumber

he still hasn't answered my q about what trade hes in 😀

 

[Mgrant]

thanks so drop the pipes down the wall at the centre of the rad. Then use radiator valves like the ones in the link above. Plan on using polyplumb pipe

 

[ShaunCorbs]

thanks so drop the pipes down the wall at the centre of the rad. Then use radiator valves like the ones in the link above. Plan on using polyplumb pipe

pick a better pipe 😀 and answerer my q else no more help handyman

 

[Mgrant]

Haven't done much domestic new builds. Mainly been working on commercial new builds which have all been 15mm to each radiator.

 

[ShaunCorbs]

Haven't done much domestic new builds. Mainly been working on commercial new builds which have all been 15mm to each radiator.

gas safe then?

 

[Mgrant]

no i won't have anything to do with fitting the boiler

 

[ShaunCorbs]

no i won't have anything to do with fitting the boiler

you on a price?

 

[Mgrant]

no hourly rate, have worked for the firm awhile, just this will be the first time doing domestic new builds for them.

 

[ShaunCorbs]

no hourly rate, have worked for the firm awhile, just this will be the first time doing domestic new builds for them.

so why not fit in 15mm like you normally do and get the lab to chase the walls 🙂

 

[Mgrant]

Could be an option, am unlikely to have a lab. though.

 

[ShaunCorbs]

Could be an option, am unlikely to have a lab. though.

if you dont ask you dont get if not you know how to do it with triangles

 

[Mgrant]

Yes thanks for the advice. Do the rad valves above work with polyplumb pipe and liners, or do you need a liner specific to the valve?

 

[ShaunCorbs]

Yes thanks for the advice. Do the rad valves above work with polyplumb pipe and liners, or do you need a liner specific to the valve?

no if 10mm valve (not the reducer type) they should but never used poly as most of the time im ripping the stuff out but as with any plastic pipe use an insert/liner

 

[Mgrant]

Pegler Push-fit Elbow 10mm | Chrome Compression | NoLinkingToThis Surely these can be used with poly pipe?

 

[ShaunCorbs]

Pegler Push-fit Elbow 10mm | Chrome Compression | NoLinkingToThis Surely these can be used with poly pipe?

i wouldnt mix and match on plastic

 

[Mgrant]

No i don't like doing are these for speedfit or a different plastic pipe then? Can imagine they will do one specially for plastic?

 

[ShaunCorbs]

No i don't like doing are these for speedfit or a different plastic pipe then? Can imagine they will do one specially for plastic?

i cant say sorry (havent used them)

but you can get rad valves in push fit tho

 

[stevetheplumber]

Pegler Push-fit Elbow 10mm | Chrome Compression | NoLinkingToThis Surely these can be used with poly pipe?

yes they can any make of tem mm pipe will fit those

 

[lame plumber]

yuck yuck yuck.............omho plastic crap and all that goes with it