Extending underfloor heating

lausp

Hello all,

We are thinking of an extension to the rear of our house approximately 16m2.

The extension is located to the rear left of the house off of the dining room, at the opposite side of the house to our boiler and UFH manifold.

Has anyone got any recommendation as to the best approach to take to heat this extension? Is extending the existing UFH zone from the dining room an option?

I have plenty of room above the ceiling slab, is this an option to run pipework for radiators or even UFH?

I'm not sure digging the floor is an option. There are 3 UFH zones in the way and gas piping.

Is electric heating a realistic option for a job like this?

Any opinions welcome.

ercork

You could look at an air to air heat pump. This would cost about 1500 to install and would easily heat an area of 16m2 in a very cost effective fashion. No piping or boiler access required - just a standard electrical socket.

lausp

ercork wrote: »

You could look at an air to air heat pump. This would cost about 1500 to install and would easily heat an area of 16m2 in a very cost effective fashion. No piping or boiler access required - just a standard electrical socket.

Thanks for the suggestion.. am I understanding correctly that this is effectively an air conditioning unit? Wall mounted for example?

ercork

Exactly - with an outdoor fan unit on the other side of the wall.

lausp

Thanks. I have to say I hadn't at all considered that but there are a lot of advantages in terms of installation etc. My only concern would be noise but I'm guessing it wouldn't be too bad.

ercork

Not really. Modern ones are fairly quiet. Both the indoor and outdoor units make some noise but nothing significant.

lausp

Anyone got any experience of electric underfloor heating? Electrician is recommending this or electric oil filled radiators.

ercork

lausp wrote: »

Anyone got any experience of electric underfloor heating? Electrician is recommending this or electric oil filled radiators.

Not personally but my neighbour underfloor electric and he's very happy with it. I doubt you'd notice much difference to the gas heated underfloor really. Similarly an electric oil filled rad will feel more or less the same as a gas heated rad - just make sure it's powerful enough, 2kW I'd say. The main difference between electric heating and gas is the cost - electric will cost about twice as much to run. But for a room 16m2 in size that shouldn't bankrupt you.

lausp

Thanks. Will need to consider both. Looks like the electric underfloor can only be used with tiles and obviously will need more work to put in too. The rad would be a 20 min job to swap out if it ever went wrong, not so much for the underfloor.