Tax credits of up to $500 are available to customers who purchase and install energy-efficient windows, insulation, doors, roofs and heating and cooling equipment in their principal residence in the United States . Credits vary according to the improvement made. Specific tax benefits for the home include:
$50 for purchasing an advanced main air circulating fan;
$150 for installing a highly efficient furnace or boiler;
$200 for installing energy efficient windows; and
$300 for purchasing a highly efficient central air conditioner, heat pump or water heater.
$500 for insulation and exterior doors.