27 Nov '13, 12am

Passivhaus Buildings Don’t Heat Themselves

As it turns out, Sarah Evans, one of the owners of the Passivhaus in Salem, Oregon, seems to be satisfied with the performance of her home, in spite of occasional overheating episodes. In an interview with Mary James published on the Low Carbon Productions website , Evans said, “There were probably three times during the summer when it [the outdoor temperature] reached 100° for a couple of days. The first time we didn’t close our blinds, and we did a bunch of laundry on a really hot day. It got really hot inside, and we had to turn on our air conditioning. (We have a ductless heat pump Heating and cooling system in which specialized refrigerant fluid in a sealed system is alternately evaporated and condensed, changing its state from liquid to vapor by altering its pressure; this phase change allows heat to be transferred into or out of the house. See air-source heat pump a...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/musings/pa...

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pas un

pas un

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