In general, Americans don't want to pay a huge cost upfront for some efficiency gains. Especially since traditionally fossil energy was cheap.
Also look at heat pump clothes dryers. They're a win in that you don't need a vent (and associated vent cleaning), but they cost more upfront.
Hopefully these are areas where the government can provide low interest rate loans upfront, since they are investments that pay for themselves over time.
In general, Americans don't want to pay a huge cost upfront for some efficiency gains. Especially since traditionally fossil energy was cheap.
Also look at heat pump clothes dryers. They're a win in that you don't need a vent (and associated vent cleaning), but they cost more upfront.
Hopefully these are areas where the government can provide low interest rate loans upfront, since they are investments that pay for themselves over time.