Question: are bosch heat pumps good?
Answer: HSPF is the heating rating. The higher the numbers, the more efficient the unit. ... Bosch Inverter Ducted Split System 2.0: The second generation Bosch inverter heat pump has top ratings of 20.5 SEER, 14 EER and 10.5 HSPF. Cost is higher, but indoor climate control is superior.