14 Jan '14, 8am

Green News: Habitat’s High-Performance Experiment

Green News: Habitat’s High-Performance Experiment

The city circulated a request for proposals among Columbia's housing development agencies asking for their most energy-efficient designs and offering $66,000 in seed money to the winner, View says. Among the few requirements were the use of either a ground-source heat pump Home heating and cooling system that relies on the mass of the earth as the heat source and heat sink. Temperatures underground are relatively constant. Using a ground-source heat pump, heat from fluid circulated through an underground loop is transferred to and/or from the home through a heat exchanger. The energy performance of ground-source heat pumps is usually better than that of air-source heat pumps; ground-source heat pumps also perform better over a wider range of above-ground temperatures. or a ductless minisplit heat pump for heating and cooling, and a generous amount of insulation. Three othe...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/green-buil...

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Does your home have high radon?

Does your home have high radon?

treehugger.com 15 Jan '14, 1am

January is national radon awareness month. If you do nothing else, at least take a look at the map of radon risk zones abo...