Electric underfloor heating

[Peskypesce]

We’re in the process of buying a house which has a large extension creating an open plan living / kitchen / dining room. It has electric underfloor heating which was installed in 2011 but no radiators in this room and a poor energy efficiency rating (E).

It’s a big room and we’re a bit concerned about the cost of heating it via underfloor heating only. We also really don’t like the tiled floor!

Does anyone have a similar set up and how effective is it for hearing a large, open space in the winter? Has it significantly increased your bills? Would you recommend getting radiators installed and how easy would it be to do that when there are none currently?

We have them in our bathrooms and they work well, but such a large area I’d want some Kw info to know the cost of running it. It could be very expensive

Electric underfloor heating is really expensive to run and it takes longer to heat up the space. I would go for radiators or if you are taking up the tiles a wet underfloor heating system.

Underfloor electric is astronomical compared to wet floor. You would be advised to remove it and replace with wet underfloor if you can afford it or if not then replace with radiators. We’ve had wet underfloor heating put in this year. Our builders were telling us how bad electric ones were cost wise. Google it and see what the reviews say.

Sounds nuts to me. Poor energy efficency coupled with a giant room and electric underfloor heating. Not only that it might have been installed in a really inefficient way, for example with improper thermal barrier as it was fitted quite some time ago.

The good news ? I think Hinkley Point C will be on line in the next couple of years.

This type consume 150w per m².

So a 5m x 4m room would consume 3kw and would cost around 90p an hour to run.

If you ran that for 12 hours a day it would cost £10.80 a day.

Does it have thermostat control or variable control so that it can be run on a lower power setting rather than just on/off? If not, I think it could be very expensive to run.

flexel.co.uk/shop/underfloor-heating/ecofloor-underfloor-heating-mat/

Thank you! Are you able to give an idea of how much it cost to get the wet underfloor heating please? I imagine it would be expensive even just to remove the electric heating and get radiators installed (given there isn’t any currently so they’d need to be plumbed in) so it might not be a huge cost difference.

It could be considerably more than 3kw/h depending on construction.