Underfloor heating

16
Found 16th Nov 2010
Any experts here on how to install underfloor heating? What do I need? Where to buy?

Need to cover a 4m x 3m room.

Also can carpet be installed on top? Or laminate flooring?

Thanks for any advice

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16 Comments

Electric or hot water?

Original Poster

greg_68

Electric or hot water?

electric I guess

ele-font

electric I guess



Can be very expensive. Cost it out before you install.

id only use underfloor heating with tiles.

I've no idea why electric underfloor heating was invented, it's terrifically uneconomical. Unless things have changed remarkably in the last few years.

Penny Saver

I've no idea why electric underfloor heating was invented, it's … I've no idea why electric underfloor heating was invented, it's terrifically uneconomical. Unless things have changed remarkably in the last few years.



A friend fitted it in his bathroom and said it was very economical.

A quick google say £4 per square metre per annum in a good insulated room, £8 ina conservatory.
Edited by: "greg_68" 16th Nov 2010

Penny Saver

I've no idea why electric underfloor heating was invented, it's … I've no idea why electric underfloor heating was invented, it's terrifically uneconomical. Unless things have changed remarkably in the last few years.



Depends on the type.

My mate built his own house and installed it - metres and metres of plastic pipework - heated using the combi - no rads in the house, heat recovery vents installed etc. The house is made of ICF system you've maybe seen on Grand Designs.

greg_68

A friend fitted it in his bathroom and said it was very economical.A … A friend fitted it in his bathroom and said it was very economical.A quick google say £4 per square metre per annum in a good insulated room, £8 ina conservatory.



That'd be an extra 50% on my gas/electric bill for the year just to heat an extension I'm looking to build. One room lol!

Benjimoron

That'd be an extra 50% on my gas/electric bill for the year just to heat … That'd be an extra 50% on my gas/electric bill for the year just to heat an extension I'm looking to build. One room lol!



???? I make that £48 or £96 per annum for the OP, are you saying your gas/electric bill is £96 per annum?

Banned

moob

Depends on the type.My mate built his own house and installed it - metres … Depends on the type.My mate built his own house and installed it - metres and metres of plastic pipework - heated using the combi - no rads in the house, heat recovery vents installed etc. The house is made of ICF system you've maybe seen on Grand Designs.

we have the same downstairs but ours is run by two air source heat pumps, when the micro generation grant starts in april we should get about a thousand pounds per year from the government !!

My sister got underfloor laminate heating. Absolutely wonderful! No I mean, it really is amazing!

Her front room is about 18 sqr meters big, so it cost quite a bit. I think in the region of £400-£600 with underlay and all the bits n bobs including the electronic thermostat display.

I had my mate (electrician) come to test and install it. Then I (Laminate fitter) lay the floor, so my sister saved quite a bit of money although she did give us a little bit of dosh for our time.

There's three ways to use this underfloor heating:

1. Floor
2. Air
3. Floor and Air

The first one mainly concentrates on heating the floor up immediately and this feels sooooo niiiicce! Warm laminate... oooooh it really is the one!

The second option is weird and I really really do not understand how this works but it does!

We were standing in the room with this option selected and couldn't feel the floor heat up that much. OK, the floor wasn't ice but it was room temperature (ish). But the temperature in the room was fairly nice and warm and it didn't even feel like it was coming from the floor.

The third option is of course just a combination of the two as you'd expect.

As for this type of heating, then it uses low levels of electricity and is more economical than central heating and actually works better than it. Well I think it does because, with central heating, laminate flooring still stays cold but obviously with underfloor heating it doesn't.

Also, you can remove radiators completely, once you have the underfloor heating installed, and you can use that extra space for furniture or whatever you like.

Edited by: "Umillion" 16th Nov 2010

Umillion - how does the laminate flooring react to the heat? presumably you have to use a good quality, fairly stable laminate to stop the wood expanding/contracting?

I think its been about a month now since she's had it and everything seems to be fine. But to be honest the laminate flooring she's got is decent/good quality though.

Whatever laminate you get it really is important to let it acclimate for about 48 hours to allow it to expand/contract according to it's surroundings. Likewise, expansion gaps are a definite. You only need about 5 mm gap around edges but some do advise 1cm.

Ok enough of the processional advise! lol!

What I really did was, I bought the laminate the day my mate installed the heating and just installed the flooring for my sis. No problems so far.

Oh yeh there was a DPM (damp proof membrane- a large sheet of see through plastic bag material) provided. Helps to keep the moisture vapours away from the laminate flooring.
Edited by: "Umillion" 16th Nov 2010

You can also order an optional remote. Cooool! I mean hot!

greg_68

???? I make that £48 or £96 per annum for the OP, are you saying your g … ???? I make that £48 or £96 per annum for the OP, are you saying your gas/electric bill is £96 per annum?



I did say an extension I'm looking to build. It's bigger than the OP's room.
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