Almost every bit of energy that was recorded by that electric
meter ended up as heat, somehow lost to the area surrounding
the house. In a standard, non-heat pump, all electric house,
every watt is the same as "Emergency Heat." Nurse Demento
replaced economical natural gas heat with electric, and his
house is large.
Heat pumps make sense for new construction. If a developer
is putting in a new subdivision--digging basements and
leveling the land, it's often not that much extra investment to
install the underground components for heat pumps, which
use the more stable underground temperatures to extract or
exhaust heat. That especially makes sense when there are
no nearby natural gas lines, which in themselves are costly
to put in. Gas heat is still cheaper if gas lines are already
there, and while heat pumps are great during cooling degree
days, the initial investment of replacing a gas furnace with a
heat pump system far outweighs the savings, and for new
subdivisions near to natural gas lines, these hybrid systems
are far more practical.
https://www.trane.com/residential/en/resources/glossary/dual-fuel-heat-pump/
>
> Jill
--Bryan