3 ms·
3. an actual modern air-source heat pump, that still has a COP of close to 2.0 at 5F (as listed here: https://ashp.neep.org/#!/ https://ashp.neep.org/#!/
by PaulDavisThe1st 4y ago
3. an actual modern air-source heat pump, that still has a COP of close to 2.0 at 5F (as listed here: https://ashp.neep.org/#!/ https://ashp.neep.org/#!/