I tend to take a dim view of the phrase "can be" because it's so weak. It's logically equivalent to "may not be" and is entirely consistent with "essentially ne

I tend to take a dim view of the phrase "can be" because it's so weak. It's logically equivalent to "may not be" and is entirely consistent with "essentially never is". But sure, the heat pump in your future home may well be much better than whatever they were doing decades ago. I don't know if my apartment used ground heat, but I doubt it.