Bruno and Judith Grunau's house is heated by six solar thermal panels.
Bruno and Judith Grunau's house is heated by six solar thermal panels. (Courtesy of the Grunaus)

Alaskan Solar House

The coolest zero-carbon home we've ever seen

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Robert Annis

If you're going to test the limits of solar-heating efficiency, you might as well do it in one of the coldest places in North America: Fairbanks, Alaska.

Bruno and Judith Grunau’s gorgeous wood house has six solar thermal panels that drink in sunlight and send the heat to a 2,500-gallon underground tank. That hot water then travels through coils underneath the floor to warm the house, while two-foot-thick walls and triple-pane windows ensure the heat stays inside. When the mercury drops below freezing (it can reach negative 30 degrees in Fairbanks), the couple relies on an ultra-efficient, wood-burning masonry heater for an extra bump.

$NA, see it on Alaska Dispatch News

Lead Photo: Courtesy of the Grunaus
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