We designed and built an Energy Star certified house in southern NH. It is primarily heated by passive solar gain from the south facing windows, and hot water panels on the roof which heat 2 feet of sand beneath the house and the radiant flooring.
The secondary heat if from a wood stove. We use less than a third of a chord of wood per winter. The house received a HERS index of 35.
For extra fun, we set up temperature monitoring and a live graph for all the components in the house.
Keep track of the latest developments on the house.
Most of the yard is native plants and wildflowers. So we see lots of wild birds in the morning.