Boiler sizing (UnderFloor Heating)

[DM87]

How do u size a boiler for a new dwelling with underfloor heating ???

 

[Blackcatgas]

watts per m2 required for the room (dependant on the specified pipe spacing) 200mm spacing in screed floors is generaly 100watts per m2 ,which manufacturer of ufh are you using?, all companys will offer a free design service on a drawing which even shows you where to run each pipe so you dont get any joins, over long runs in a zone etc.