Energy Efficiency for Homeowners

Bartle Case Study: Cold Climate Air Source Heat Pump (ccASHP) System 

03-30-2021 15:04


In 2018, Matt and Kristen Bartle began construction on a new, super-insulated, high-performance house on their beautiful lakeside lot in South Hero, Vermont. Their goal was zero net energy. South Hero is a town of 1,700 people located on South Hero Island in Lake Champlain. It is predominantly an agricultural community, with a long history of dairy farms and apple orchards.

South Hero’s picturesque location in Northwest Vermont also makes it a popular summer tourist destination. The beautiful summers are complemented by bitterly cold winters, with average low temperatures in the teens during January and February. The Bartle family’s new home utilizes a cold climate air source heat pump (ccASHP) system to keep the home comfortable despite the frigid winter temperatures.

Before building their current home, the Bartle family lived in nearby Colchester, Vermont. In that home, the family got on the path towards lower energy use and greenhouse gas emissions (GHG) by participating in a third-party-owned solar energy system that offset their electric costs. The home, however, had a traditional fuel oil and hydronic baseboard heating system. In 2015, Matt took a zero net energy building class, and he and Kristen decided to implement what he learned a few years later when building their new home that would better accommodate their growing family of five.

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