100w/m2 or more for timber floor? - TilersForums.com

[wilfredolimb]

Hi,
I've been hearing and reading mixed views on the wattage of UFH to use on my bathroom floor, (joists + 22mm floor boards)
I thought 100w/m2 was max for this, but i've been told 150 or even 200w/m2 can be done, which will also heat the room nicely.
Any ideas?
Cheers,
Wilfredo

 

[brian c]

what size is the room?

 

[wilfredolimb]

roughly 5m^2. thanks

 

[pjrich]

Wilfredo,

On a wooden / plywood floor we never recommend installing more than 100W/m2, which will be fine if you want floor warming.

If, however, you want to heat the room then whether 100W/m2 is sufficient will be down to the heat loss of the room. If your room is modern construction with good insulation and you are heating 80-85% of the total area of the room then 100W/m2 would normally be sufficient to heat the room.

If you need to install greater power, i.e. 160W/m2, then install 6mm or 10mm insulation boards on the floor before installing the heating.

200W/m2 is normally only used for conservatories.

Hope this helps.

If you need any further help, please contact me.

Peter

 

[wilfredolimb]

sorry for late reply, cheers Peter I will do.