| The performance of this 1963 ranch has been updated with new windows, a sealed combustion furnace and water heater, and a combination of insulation products, including cellulose, XPS foam board, and spray foam, to reduce oil consumption for heating and hot water to 500 gallons/year. In addition, a 4kw rooftop PV system produces enough energy to cover more than 50% of the annual electric bill. |
