UFH pipe spacing in screed floor

[Matt88]

Hi,

I am just looking for a little guidance in what my requirements should be for pipe spacing under the screed, my systems specs are as follows:

15mm ultra flex polypipe
poly pipe zru 2/3 manifold pump unit
and plastic egg trays for pipe

S&C screed @ 60/65mm thick, Schulter ditra and 10mm porcelain tile.

If I use 100mm spacing Im guessing I can use lower flow temps? Would this be okay?

The room is a kitchen 28m2 with around 23m2 of floor space.

I'm not 100% on the spacing 100mm or 200mm or even 150mm.

Any help and advice would be thankful.

Sorry if this is in the wrong section.

cheers

 

[Riley]

Not used Polypipe before but MIs are key. I’d call the manufacturer they will know their product best

 

[Matt88]

Okay thanks for that I'm going to contact polypipe for the requirements, also whats MI's ?

 

[Riley]

Manufacturers instructions. Most brands will have their spec to enable even heat spread

 

[Matt88]

Manufacturers instructions. Most brands will have their spec to enable even heat spread

Ah I see. I've just emailed poly for a free design

 

[king of pipes]

This maybe of use to you Matt. Cheers kop

 

[SimonG]

All about heat requirements for room. That will dictate the spacing.

 

[Matt88]

@Kop looks like he file pdf doesn't work count let me download for some reason, maybe because off my post count.

@SimonG are we talking about watts/BTU's needed to heat the room ?

 

[king of pipes]

You can download from Google bud