@Opus 17 wrote:
Right, it has to be installed in your "main home", not just any place you use as a residence, but the place you live most of the time and consider your main home.
It does not need to be your main home. While the first part of the §25C credit (windows, doors, insulation, etc.) needs to be on the main home, the second part of the §25C credit (heat pumps, AC, furnace, biomass stove, boiler, electric panel, etc.) can be on any personal residence.
