Here is a completely different building with many of the same green building techniques as the two-family home in Medford. The house is also well insulated and made air tight with spray foam. Later it will have solar photovoltaic panels put on the roof of this garage. Most of the heating and cooling will come from a ground-source heat pump, also called geothermal system. That's the same basic compressor technology as the air pump in Medford. This house will have a back-up propane heating for very cold days to supplement the primary systems.
The roof of this garage will also be covered with a reflective coating to reduce the amount of heat it absorbs, lowering the cooling load. The reflective coating won't change the color of the roof.
October 9, 2011 7:27 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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