Black River Construction
Middlesex, VT 1975
Solar space heating: 400 square foot active air system provides 40% of annual heat requirements. The remainder is provided by a wood burning stove.
Heat is stored in 2900 16 oz. bottles filled with water / antifreeze positioned in the joist space between floors.
The house is organized to provide heat distribution by gravity air flow.
The solar heating system is still providing free heat after 35 years of operation.