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We just installed a Solstice Inverter Extreme[0] before the the storm hit. The low in our area was -24F. The heat pump is advertised to work at -22F, but was
by sneezesForAttn 4y ago
We just installed a Solstice Inverter Extreme[0] before the the storm hit. The low in our area was -24F. The heat pump is advertised to work at -22F, but was still heating the house at the low. Efficiency and capacity are reduced with as the temperature drops. We have backup resistive heat in the buffer tank of our hydronic setup. It is early but we are happy with the performance during this first cold snap.
[0] https://www.spacepak.com/solstice-inverter-extreme https://www.spacepak.com/solstice-inverter-extreme
- maxerickson 4y agoWhat's the rough cost? (obviously there will be lots of variation based on the complexity of the install, but the ballpark is still interesting)
- sneezesForAttn 4y agoAbout $10k for the heat pump. NPV is positive for 10 years compared to a propane boiler. This doesn't include installation, but it is doable for the advanced DIY homeowner. The entire system cost $25k + installation. Not cheap, but in our climate we heat 7+ months and it is worth it. The extended federal tax credits help, but our state does not do anything in terms of rebates.