Will this heat pump do anything for a 16x32 pool?

[BigStein]

50% loss with solar cover? That seems a bit steep to me. I live in NH, where our nights are pretty cold still (low 40's), and I lose a couple degrees over night (my water temp is in the mid 70's right now with my heat pump), but nothing even close to 50%.

I have no idea about that heat pump but just can't see them losing that much heat with a cover.

[Poolsean]

Yes. 50% is about correct.

It depends on what your normal water temperature would be without the heat pump. From there, how much degrees is it to the mid 70's, where you're at now?

You're also running your pump all night long right? If so, your heat pump is still running at night too, right? So, you heat loss overnight would not be 50%, as your heat pump is still running to heat the pool.

The 50% loss is with the pump off and uncovered.
A solar cover helps quite a bit and is about 20% loss.

[BigStein]

OK, I see. Your original post said a 50% loss with the cover on. 20% seems right to me. After a few days of 80 degree temps. up here that prompted me to open the pool (and the kids to swim despite water temps. in the mid. 60's), it has been around 60 during the day and upper 30's at night (with one night of 28, yikes!). I run my heat pump from 9am to 9pm as there is no point in running it at night with those temps). I only bother to run it at all as it does take a few days to warm the water up to swimming temp. and since I already have it there I want to be ready for our next warm day.

So I would say that I have it raised 10 to 15 degrees over where it would be and lose 2 or 3 degrees of that each night with the cover on and the pump off, so the 20% is right on the money.