wet under floor heating

[Shabbat72]

Hi - I have looked at hundreds of pages; all give different answers. I am interested in the SIMPLEST solution NOT the most PERFECT solution. I have read about room sizes, efficiency, how you run underfloor heating separately from central heating radiators etc, but that's NOT what I want to know. I have a small bedroom 6m squared. Can I simply take off the radiator, plumb in 35 metres of ProWarm Underfloor heating piping whilst keeping the thermostatic valve and just run the piping under the insulated floorboards? ProWarm website says yes as long as the room is under 15m squared. It is just that we need to get that radiator off the wall. Most websites say that for a small room it is possible and that people who say no are just over complicating things.........What do you reckon? Thanks for your help ........

 

[cross thread]

It will work but will lack control as underfloor is run at a much lower temperature yours will be probably around 70 deg c to give enough heat to original rads.

 

[Shabbat72]

It will work but will lack control as underfloor is run at a much lower temperature yours will be probably around 70 deg c to give enough heat to original rads.

 

[Shabbat72]

Cross Thread - thanks for that. So the risk is that I end up with a house that is either colder and a hot bedroom or a warm house and cold bedroom? Is that right?

 

[cross thread]

Sure it will get hot but not really controlled plus the floor coverings may not like the high temperature

 

[Johntheo5]

OK as long as the floor boards don't buckle with the heat?.

 

[Mr Chibs]

Could you use a blending valve as a 'cheap' way to control the UFH?

 

[Shabbat72]

Hello Mr Chibs - thanks for having taken time to reply. I am no DIY expert, but if I leave the thermostat radiator valve on, can I not achieve the same effect?

 

[JohnD]

just run the piping under the insulated floorboards

the insulation will prevent the heat getting out.

 

[Shabbat72]

Thanks for taking the time to reply. The insulation would be under the pipes not above the pipes. It's a 1930s house with nice, big, thick joists.

 

[Mr Chibs]

Hello Mr Chibs - thanks for having taken time to reply. I am no DIY expert, but if I leave the thermostat radiator valve on, can I not achieve the same effect?

No, as wet UFH pipes need to run at lower temperatures... say 45ºC your central heating water is likely to be higher than this figure, hence the blending valve... also UFH is not quick to heat as a radiator, think low and slow.

You can get a room kit, which comprises of a pump etc, but probably OTT for 6m²

If you just connect UFH to your current central heating circuit it will work, but may not be controllable... suppose you could wire a thermostatic valve and lock shield and pretend it's a big radiator... just need to think you are adding a lot of meterage in pipe length, but you could test it.

 

[Exedon]

Have a look on underfloorparts.co.uk they do small room packs that do exactly what your looking for.

 

[Shabbat72]

wow! they cost £1000 for 10m squared! that's A LOT of money to gain storage space in a spare bedroom!! Thanks though, they have loads of kits on there!! Thank you

 

[Exedon]

But they also do a stapled to insulation kit for not much more than £150
Modify one of those?

 

[Razor900]

It seems you only want people to confirm what you already think. Will it work? yes but not well but you crack on and do you.

If I'd known I could just reuse the TRV years ago I could have saved clients a fortune with zoning, rails and blenders...