A different way to build a house #25 – The Passive House

New “passive houses” use about “one-twentieth the heating energy” the energy of traditional houses:

No Furnaces but Heat Aplenty in ‘Passive Houses’

From the article:

The concept of the passive house, pioneered in this city of 140,000 outside Frankfurt, approaches the challenge from a different angle. Using ultrathick insulation and complex doors and windows, the architect engineers a home encased in an airtight shell, so that barely any heat escapes and barely any cold seeps in. That means a passive house can be warmed not only by the sun, but also by the heat from appliances and even from occupants’ bodies. And in Germany, passive houses cost only about 5 to 7 percent more to build than conventional houses.

Here’s a look at passive houses in the United States:

Other House Ideas