Convert to UFH?

[Jde00]

Hi

we have an air source heat pump in our recently purchased home. The house has a manifold feeding all radiators. Would the fact this plumbing is in place make retrofitting UFH any easier?

 

we have LVT on concrete slab downstairs and LVT upstairs

 

cheers!

 

[Nickfromwales]

Hi. 
It would depend on how the UFH pipes could converge at that location ( there would be a lot of them ) and the number of available loops ( individual flow and return tappings on each rail ) as it’s likely you would need more loops than you have radiator circuits. 
In honesty the manifold would likely be going in the bin, as it may just be a dumb distribution manifold. Can you post a pic, and we can see if it has a pump and TMV ( thermostatic mixing valve ) on it. If so, you may be able to retain it and add another section of rail to each of the flow and return rails to expand it. 
Needless to say, this will be a hugely disruptive undertaking and would be subject to understanding what thickness of insulation is under the screed. 
You can cost this via Wundatrade if you have a set of plans. 

[Jde00]

Ah thanks for that, you aren't the first one to mention the manifold aren't probably much use for an UFH system.

I checked with the developers and the floor downstairs is actually block and beam with insulation and screed. They are going back to the architect drawings to see how deep is the screed.