Quote Originally Posted by ImpalaRob View Post
As far as I'm concerned a heat pump is useless, unless of course your going to run it 24/7 to maintain a temp, which means your running your filter 24/7.
I hadn't thought about that . . . but you would need long pump run times. Probably if you install a heat pump, you also ought to install a 2 speed pump, so you can run 24/7 economically.