Air source heat pump with underfloor heating for cooling

[Inamechangeagainstai]

Anyone done this? On hot days you’d route cool water through the floors. Does if work?

I can’t answer you but, thinking about it, this makes no sense to me- wouldn’t moisture just condense on the cooled surface and then everyone skids over on the tiles like skittles?
I’m thinking about about a cold window and how it attracts condensation on the inside.

This was included in one of the design plans we got when we had our kitchen done.

We then had plumbers and kitchen fitters out to quote and all of them thought it was an awful idea. Nobody was willing to do it. So we’ve got underfloor heating, but not cooling.

With wet underfloor heating, select a ceramic floor (porcelain tiles, encaustic tiles) or stone as they are naturally cool underfoot due to the high thermal conductivity. In the summer the underfloor heating won’t be on and as you walk heat is naturally removed from your feet.

Avoid engineered wood or plastic (LVT), which have a lower thermal conductivity so naturally feel warmer.

When using wet underfloor heating the stone or ceramics are the perfect choice (speaking as a Materials Engineer).

Running cool water underfloor doesn’t sound like a great way to cool a room ). To actually chill a room you would need vast quantities of cold water or run (sub zero) methanol or other refrigerant. Air conditioning is the best way to cool a room.

Thanks - if you say design plan does that mean you would have needed something different from regular UFH under the floors? And do you remember why they thought it was a bad idea?

The floors are already in place (wood, I know not ideal but works
well enough for the heating aspect. )

The idea would be to have an extra benefit to the heat pump if installed, without a dedicated aircon.

Switch to air rather than water for the system?

Yes, it’s a separate system. They can be run “around” each other, but they don’t work on the same system.

I don’t think it’s an option if your floors are already down.

My belief is that the systems at the moment are heating only that qualify for government grants. So cooling facility as well could be horribly expensive.

I did read some stuff on the web about them thinking about allowing cooling as well for grant qualification.