I think it’s my turn to ask a dumb question. (When one has a talent one should use it!).
What’s is the issue with condensation?
I get that condensation on a tiled floor would not be good. I’m not trying to cool the floor that much.
I also get that condensation on a concealed pipe would not be good, rotting the timber nearby.
We are seeing condensation on our manifold when I run the ASHP at too cool a flow temp. (OK there’s another question there but our heat pump is doing odd stuff, appearing unwilling to ‘get out of bed’ for flow temps above f cold, so cooling needs to be in ‘hard’ bursts, but that’s another question).
So we run our heat pump, have a nice coolish slab, get condensation on the manifold, so what? It’s all stainless and brass and plastic, I can put a towel under it to catch the drips, so where’s the harm short term?
One day, I’ll have fitted a fan coil upstairs (having major issues finding a ceiling mounted one), and the heat pump control will be sorted so it does moderate cooling so we’ll avoid condensation that way and I can box in the manifold safe in the knowledge that it’s not dripping.
But for now I need to burst cool the slab as that’s what the heat pump wants to do, so is it ok to accept condensation on an exposed manifold during a heatwave?