Underfloor heating

[Bl888]

hi all

Need some advice on our underfloor heating project.

We are wanting to put underfloor heating in our kitchen/dining room. The new extended is ok as plenty of depth for insulation and screed.

However, on the old part of building the floor depth is limited. My house is built on a big concrete slab above sits about 7cm to floor level. In this 7cm at the moment there is about 3-4cm of polystyrene style insulation followed by a thick sheet of plywood.

Anyone able to provide any advice
On what my options are for this area for underfloor heating? Looking at websites and YouTube videos it seems i May be able to rip up the ply and insulation to take me back down to the concrete slab. I am poss able to add a 2.5 cm insulation with pipes on top or grooved into the insulation and the. Apply about 5cm of liquid screed. Is this sufficient and is the insulation enough?

Or am I better of forgetting and sticking up a rad?

Thanks

 

[Dan Robinson]

https://ambienteufh.co.uk/our-systems/ambisolo/

 

[Bl888]

https://ambienteufh.co.uk/our-systems/ambisolo/

Thanks

What insulation is needed under this?

 

[dilalio]

Thanks

What insulation is needed under this?

Give them a call and ask. You know your site conditions and they know their products. They can advise you best.

 

[Notch7]

I think underfloor heating if to be used as a primary heat source, you either dig up the floor and get a minimum 100mm of celetex down, or put in radiators.

 

[Dan Robinson]

Twaddle. I have an overlay ufh system on a solid concrete slab with no insulation and it works perfectly.


Maybe not the most thermally efficient but....