In theory, you can have an AC or heat pump that shares a refrigerant loop with your fridges and freezers. But the efficiency gains are extremely marginal and it

In theory, you can have an AC or heat pump that shares a refrigerant loop with your fridges and freezers. But the efficiency gains are extremely marginal and it adds a lot of extra trouble. Right now you can just buy a fridge or a freezer, plug it in, and it just works. You don’t have to plumb refrigerant through it. Which is good because it reduces the risk of refrigerant leaks.