New Build Cost of UFH (Plumbed Not Electric) Vs Typical Radiator System

[cr0ft]

Hi all,

We're hopefully about to complete on a 4 bed house today (105sq m over two floors). It's a new build at the early stages of the build, i.e. brickwork completed up to the first floor.

I'm considering asking the builder to change the standard unvented cylinder for a twin coil one to allow solar connection in the future. Also wanting to ask them if they can do away with radiators and fit wet UFH throughout the property.

My question is aimed to those with more experience in this than I. I'm assuming because of the build stage that this is easy to plan and fit for. Can anyone give me a very rough indication of the difference in price between the 2 systems?

If any more info is needed just text.

This is the layout of the house and it's solid floors downstairs and suspended timber floors upstairs, pretty standard really.

 

[SimonG]

Don't have the numbers to back up what I am about to say but it's my understanding that uf is more expensive to install but cheaper to run. That's why developers don't like it, they won't see the benefits.

The only question I would have is are you sure you want to do away with all the radiators? I would keep a few if it was me, especially with trv's. When not needed they will remain off but are handy as a boost.

Just my opinion, be interesting to hear others.

 

[Gray0689]

I would go for underfloor downstairs and rads upstairs
At a guess without knowing what sort if underfloor system they use
I'd say about an extra £200 for extra coil in cylinder
Underfloor downstairs an extra £1000 to £2000 approx on top of plumbing price
But this does not take in to consideration the builders price for possibly more and better insulation in floor and personally I'd go for a thinner liquid screed not a thick sand cement screed

And yes should be easy to change anything at this early stage

 

[Gray0689]

I would go for underfloor downstairs and rads upstairs
At a guess without knowing what sort if underfloor system they use
I'd say about an extra £200 for extra coil in cylinder
Underfloor downstairs an extra £1000 to £2000 approx on top of plumbing price
But this does not take in to consideration the builders price for possibly more and better insulation in floor and personally I'd go for a thinner liquid screed not a thick sand cement screed

And yes should be easy to change anything at this early stage

Also you will have to change electric's ie room stats zone valves ect