All great in your situation or where someone has unlimited running water. But these idiot climate hoaxers are demanding Therese for the entire state (nation soon to follow). What will a 50 unit apartment in Yonkers use for the heat sink? Where will the electricity come from. Where will the plumbing occurs? AND, how soon after they are mandated and somehow installed until the same clowns ban the chemicals and refrigerants, in the combo units?
But of course we are talking about saving the entire planet so nothing is too extreme...or stupid... for a politician.
Disclosure. I did work for a company that design seawater heat pumps for tropical applications. I didn’t do work on the heat tranfer side. Not smart enough for that. I did the mechanical designs and CFD analysis. I never saw a project to completion but it looked great on paper.
Well, my situation of ‘unlimited running water’ certainly sweetens the pot but I think the evidence is that they will make good sense in many other situations. The reason I went to some length to write up post 90 was simply because so many posters seemed to be of the view that ‘heat pumps simply don’t work at lower temperatures’.... I think that certainly was the case with ones built in the 70s and 80s and maybe for quite a long time after that. But let’s not turn this into a serious case of throwing the baby out with the bathwater in that generalization. I think the data showing that the COP for modern heat pump units being quite good at low temperatures looks to be very compelling. As for how long they last? That’s another question and based on what has happened with refrigerators in recent years, the track record isn’t good.
Should the nutcases be allowed to mandate them just becauase they might be a good idea? That’s ridiculous... Will doing ‘fuel switching’ from gas to electricity put more load on the grid? Obviously and that needs to be dealt with... and don’t get me started on how atrocious wind and solar are as electrical sources. Are they applicable to every situation? Obviously not... the heating requirements for a residence are not the same as the apartment in Yonkers.
By the way, CFD analysis is a big part of what my company does....