underfloor heating advice

[beesley121]

here you go

 

[beesley121]

and again

 

[Mike Jackson]

The manufacturers will deal with all of this for you. Just give them a set of the plans and they size it and tell you the layout required.

 

[wetdrip]

Great thread guys, keep it up.

 

[SimonG]

right guys, this job is going ahead but ive not heard back from the likes of nu-heat regarding plans/cost. Problem is customer wants a price as shes waiting for kitchen to be fitted and floor to be laid so all this underfloor heating needs to be done by then.

ill upload some plans of the house so you get a better idea whats going on. Customer now wants both the ground foor and the 1st floor fitted with underfloor heating. no rads apart from a towel rad in each of the bathrooms. Im guessing im goind to need 2 x 3 port manifolds with pump and mixer as theres 3 rooms on each floor. so im thinking it would be good to give each room its own circuit. ground floor is approx 26sqm in total. 1st floor is 34sqm

what im unsure how to do is the layout of the piping in the floor? can anyone edit the plans i will try to upload to show me how its done. Im a complete newb to this so any help really appreciated. Also what size boiler would be needed to run this? not sure how many watts in total the heating system will be? and what controls should be put on the system?

sorry for all the questions but if yer dont ask, yer dont get. hopefully you nice guys will help me out

just to note, ground floor will be tiled, 1st floor will be carpeted and tiles in bathrooms. 1st floor has joists running from to back at 350mm centres as does the kitchen on ground floor. The louge and dining room will be concreted to bring the floor level up to the level of the kitchen floor. Can the pipes be laid in concrete or does it have to be screed?

Don't assume that because you have three rooms it will be a 3 port manifold, due to maximum loop lengths you may have multiple loops per room. But as Mike Jackson said the manufacturer will sort all that for you.

 

[310]

hi uf heating is as only good as insulation be sure to put 100mm insulation on floor lay pipe on also 40mm on outside walls also a small buffer would be good

 

[tweakyboy]

Contact Osma Wavin UFH, I use alot of it. Their tech line is pretty good, they will sort out plans for you and do all of the sizing etc.