Ah crud yeah you’re right. Good catch

Technically those are orders of magnitude. 2x or 3x efficiency compared to resistive heating is quite a bit. But in the scheme of getting actual heat into an actual home and real world energy costs it’s not a huge difference

The efficiency of a heat pump in part comes from the temperature of the heat source. For an air source heat pump it will be more efficient at higher outside temperatures and less efficient and lower outside temperatures, and at extreme temperatures may be less efficient than resistive heating

TL:DR her mom called the police and a neighbor and the neighbor loudly arrived spooking the intruder