Air transfer heat pumps just seem like poor planning to me. Ground or groundwater heat sink is so much better. Some initial expense when building a house but works forever.

Air medium heat pumps: Let’s heat the house to 70F using 20F air Let’s cool the house to 70F using 110F air

Groundwater medium heat pumps: Let’s heat the house to 70F using 60F groundwater when it’s 20F out Let’s cool the house to 70F using 60F groundwater when it’s 110F out