TerraHaus is the first Passive House-certified student residence in the country and features an evacuated tube solar hot water system.

EnergySage Customer
Quick Facts
Energy Needs Met

50% to 74%

of hot water

What You Need to Know


TerraHaus is a Passive House-certified, 10-student residence on Unity College's campus. Space heating needs are met primarily through passive approaches including solar orientation, super-insulation, and superior air sealing -- with backup heat from a cold-climate heat pump and small electric baseboard radiators. Evacuated tube solar hot water collectors provide more than 60% of the building's annual domestic hot water needs.

Open House Info:

Join us for the NESEA GBOH October 13, 2012. Find TerraHaus to the south (right) of Quaker HIll Road as you enter the Unity College campus. Parking is available near the TerraHaus or across the drive at Unity College's Welcome Center.

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