What energy-efficient home improvements are eligible?
The overall $1,500 cap can be reached in several ways with the purchase and installation of energy-efficient products that meet certain efficiency criteria: • Exterior windows: Includes skylights and storm windows. • Insulation, exterior doors, or roofs: Includes seals to limit air infiltration, such as caulk, weather stripping, and foam sealants, as well as storm doors. • Central air conditioner, heat pump, furnace, boiler, water heater, or biomass (e.g. corn) stove: Starting in 2009, geothermal heat pumps are instead eligible for a separate tax credit-see Section 5 below. In addition, to be eligible for the federal tax credits: Windows, doors, insulation, and roofs must be expected to last at least five years (a two-year warranty is sufficient to demonstrate this). Manufacturers can certify (in packaging or on the company’s web site) which of their products qualify for the tax credit. Retailers, contractors, and manufacturers should be able to help you determine what levels of insula
