UFH and rads on the same floor

BeautifulLoser

Hi,

We're in the process of adding a 2 storey extension to our house (60 sqm).
The existing house has rads and GFCH.

We're intending to put UFH into the ground floor part of the extension but it's recently been suggested to us that it makes very little sense to have both UFH and rads on the same floor; that the bolier would have to be running all the time; that it would be expensive to run; and that it would be very difficult to regulate the downstairs temperature. We're now confused.

Anyone with any thoughts/suggestions??

Thanks

yop

BeautifulLoser wrote: »

Hi,

We're in the process of adding a 2 storey extension to our house (60 sqm).
The existing house has rads and GFCH.

We're intending to put UFH into the ground floor part of the extension but it's recently been suggested to us that it makes very little sense to have both UFH and rads on the same floor; that the bolier would have to be running all the time; that it would be expensive to run; and that it would be very difficult to regulate the downstairs temperature. We're now confused.

Anyone with any thoughts/suggestions??

Thanks

Who suggested you do this? It sounds ridiculous to be honest, maybe on 2 different floors but I would question the logic behind this

BeautifulLoser

yop wrote: »

Who suggested you do this? It sounds ridiculous to be honest, maybe on 2 different floors but I would question the logic behind this

Thanks for the reply.

Nobody suggested this to us - it was 100% our idea. We just got seduced by the idea of having nice warm tiles in our kitchen and downstairs loo.

So, rads all round then? At least it's good to find out beforehand rather than after..

What's going to be in the extension? Properly controlled I don't see it being a big issue.

You would almost be installing a second heating system, as it would work best if separate from the main CH, same boiler but with a buffer tank & thermostatic mixing valve to feed the UFH pipes. The UFH controls would switch the UFH pump and a thermostat on the tank would control the boiler. Doing it this way stops the boiler "short cycling" and wasting fuel.

yop

BeautifulLoser wrote: »

Thanks for the reply.

Nobody suggested this to us - it was 100% our idea. We just got seduced by the idea of having nice warm tiles in our kitchen and downstairs loo.

So, rads all round then? At least it's good to find out beforehand rather than after..

From experience the idea of UFH and a standard oil burner they don't work well. I know what you are saying re UFH under feet but putting in UFH along with rads I don't know.

Maybe speak to a good plumber and get professional advice, as Dolanbaker says you would probably need another separate heating system installed inc manifold, acutators and thermostats. Just installing this all for 1 or 2 rooms could be pricey materials wise regardless of the cost to run it.

BeautifulLoser

Deleted User wrote: »

What's going to be in the extension? Properly controlled I don't see it being a big issue.

Downstairs there'll be a kitchen and loo/utility - all tiled

So,what you both are saying that if it's done properly (with a seperate manifold, thermostats, buffer tank etc), then it should work fine.

My doubts are leaning me towards rads and not going around barefoot. A bit defeatist but at least I know the rads will work..

Thanks for the advice!

rok

I have seen electrical floor heating mats advertised. e.g. DeviMat Underfloor Heating.
Might work for tiled area in bathroom?
Have not found out yet if they are any good, or expensive to run...