Comment on Heat-pump water heaters are a winner for the climate — and your wallet
sunbeam60@lemmy.one 10 months agoYou’re talking ROI. I’m talking efficiency. SHW is about 65%-70% efficient. PV is about 20% efficient.
Comment on Heat-pump water heaters are a winner for the climate — and your wallet
sunbeam60@lemmy.one 10 months agoYou’re talking ROI. I’m talking efficiency. SHW is about 65%-70% efficient. PV is about 20% efficient.
Blaat1234@lemmy.world 10 months ago
Efficient with money means you get more of that world and environment as savings per dollar.
Would you choose paying €4000 to replace 600 kWh of heat pump boiler hot water with solar boiler, or 4000 kWh of basically a whole home’s energy usage including hot water?
The solar boiler doesn’t even heat well during all seasons, mine still uses gas to back it up at least half the days.