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More stories about HVAC

  • Hydronic Heating for Low-Load Houses

    With the right hardware and layout, hot-water heating saves energy and makes ideal use of the sun.

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  • An Energy Retrofit in Stages

    I'm a building energy consultant in central Wisconsin. I recently had a chance to perform a major energy retrofit on a modest ranch-style house just south of Lacrosse, Wis.

  • Building a Curved Handrail

    Thanks to bending rail, it's not that difficult to form curved handrail sections for a circular staircase on site.

  • Geothermal Sources: The Blessing and the Curse

    Free underground heat

  • Bahama Umbrella Bahama Jumbrella CXL

    Architectural umbrella with built-in heating, lighting, and sound system.

  • Abbaka Hy-Ex Ventilator

    A roof exhaust that is less obtrusive and better looking than standard ventilators.

  • Which Window Area Ratio Is Better?

    Q: I've seen window glazing area recommendations for energy-efficient houses stated in two ways: as a percentage of conditioned square footage and as a percentage of exterior wall area. Which is most useful, and why?

  • JLC Report

    Passive House seeks broader appeal; proposed code changes stir controversy in North Carolina; more

  • High-Performance Homes on a Budget

    Well-thought-out details make energy-efficient houses both attractive and affordable.