Best Underfloor Heating Type

Vanq

Looking for advice to check the sytle of install I am planning to put into the downstairs (Retro-fit). I'd then have thermostatically controlled radiators upstairs.

I have seen recommendations for ambient-elec.co.uk which I am happy to follow, I was previously considering theunderfloorheatingstore.com

I have a 25m2 lounge/dining room open plan area and also a 11m2 kitchen/utility/downstairs toilet. The idea was to have 2 circuits to separate them.

The lounge will be an engineered (floating) wood floor and the kitchen in ceramic tiles.

I have a solid concrete floor with currently no insulation, both mine and my gf's dads are very DIY capable as ex-egineers so the idea was to go for a proper "pro" style system:

Floor Primer
10mm insulation board
Run electric cable (not mats)
Cover in 8mm latex

Then lay the respective flooring on top.

I am looking for opinions on the set up and if it was better than using the pre-connected mats?

I was aiming for 150w/m2, is that sufficient for the floor coverings?

Appreciate any advice you're able to give.

CashisKing

Doesn't really sound like a great idea.
In UFH the concrete slab should act like a giant radiator slowly releasing the heat, which won't be the case here.
Your costs of running will be astronomical if it's your only heat source.
Individual cable will work out much cheaper than mats

sillygoose

CashisKing wrote: »

In UFH the concrete slab should act like a giant radiator slowly releasing the heat, which won't be the case here.

Not so, only with wet systems and if the concrete slab is insulated from below too.

In electric UFH the aim of the game is to keep maximum heat away from the concrete with an insulation layer. With Electric UFH the heat output wattage is far less than available from a boiler fed wet system, it would never get the slab above cold.

Yes it will be costly to run, but no worse than other electric heating if installed well. With about 3.7kw in a 25m2 room, I would perhaps have concerns that it may not still be warm enough.

CashisKing

I should have added "to be efficient"