is ufh enough to heat a small bathroom?

[luketoot]

hi everyone complete and utter newbie to the forum and to ufh and am redoing my bathroom - my first major renovation.

Its a small but long and tall bathroom (in a tenement flat in Glasgow). we are trying to make it as big as possible so would be great to loose the radiators and avoid a heated towel rail so as to increase the space.

we are tiling the floor on top of 12mm ply. floor space is under 2m square.

will electric underfloor heating be enough to actually heat the room? remember this is Scotland :smilewinkgrin: or is it just going to make the tiles nice and warm.

last question: will we need to insulate on top of the ply or is that enough insulation?

many many thanks
luke

 

[faithhealer]

personally I think it will. insulation board would help if it's going to be your primary source of heating, Give UHeat a call, (on our sponsors list) and they'll help you out. If you need a hand give Dave a pm and he will sort you out with a top tiler in your area

ps welcome to the forums

 

[diamondtiling]

Welcome to the forums.

For more heat from your UFH you could put Kingspan between the joists before you lay the ply, I would install 18mm ply as a minimum. While you have the floor up strengthen the joists with extra noggins.

 

[Gazzer]

I dont believe it would. Uheat recommend 100w mats for timber floors and that wont heat the whole room IMO
Using Ecoboard you will be able to use their 160 w matts but i still doubt it will provide what you require.
Calling Uheat would be the best place to start and ask their advice
Underfloor Heating | Electric | Floor Insulation | Uheat

 

[diamondtiling]

This floor heats the kitchen no problem, it has double kingspan in the concrete and then 10mm insulation, the UFH is covered with flexible SLC. Warm up time is very fast.

tilersforums.com | Tile Forums | Tiling Forum - diamondtiling's Album: Travertine floor over ufh. - Picture

The wires are 55mm apart to give maximum heat at low settings.

 

[Gazzer]

I believe in a perfect world then maybe you get what you desire.
More factors would need to be taken into consideration. How high the room is would make a difference. I mean how high is it off the ground and how high the ceiling is?. How much insulation is there already in the room? How many walls are outside walls? What condition are the windows ? Which way does the bathroom face?
In my bathroom i would feel i woould stand a better than most chance of obtaining sole heat from UFH as the floor area is little over 2m2, no windows, the bathroom is situated in the middle of the house so no outside walls and it has a average height ceiling with good insulation. More importantly i think is what you would call comfortable temp. I rarely have the heating on but i know some of my clients like it hot. I recently tiled a kitchen floor with UFH but she still has the radiators on full....i cant breathe when in the house.
All that said as Diamond says, Insulation is the start but not just the floor. Check the windows for heat loss, Any chance that the ceiling could be lowered as that would help too.
Firstly though i would talk to Uheat and ask their advice.

 

[kilty55]

personally i dont think ufh is enough to heat a room especially in scotland:drool5:

 

[david campbell]

i don't think so either,i take it we are talking 10 feet roof ,old style tennament,thats a lot of space to heat up

 

[faithhealer]

I'll bow to the locals knowledge here lol

 

[luketoot]

thanks for your responses guys. all very helpful and good food for thought.
I will definitely give UHeat a call to have a chat and see what they say.

thanks again :hurray:
luke

 

[Gazzer]

thanks for your responses guys. all very helpful and good food for thought.
I will definitely give UHeat a call to have a chat and see what they say.

thanks again :hurray:
luke

Thanks for coming back and let us know what UHeat say and then when you have completed the job , let us know your thoughts ...its all good info