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Solar

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    Super-Insulated Tank for Heating Fluid Storage

    Wouldn't it be nice to store excess heat generated by solar panels and biomass boilers in summer for heating during the winter? Here's a stab at a tank designed for the purpose.

     
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    TVA-ORNL Project Provides a Window on the Payback of Energy Upgrades

    Study finds that modest upgrades in insualtion and HVAC equipment dramatically reduce energy use in warm, humid climates.

     
  • The 2010 Readers' Choice Green Finalists

     
  • Retrofitting a High-Tech Heating System (Subscriber content)

    This design uses a gas boiler and solar thermal collectors as heat inputs, and incorporates an HRV into the air handler.

     
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    Innovative Products 2009

    A roundup of tools and materials found on the floor at JLC Live in Providence, R.I .

     
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    Products

    Anti-sweat valve for toilets; cold-weather spray foam; solar-powered dimmer for tubular skylights; standard-width high-performance range; faux slate roofing; more

     
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    Products

    Noise-muffling floor underlayment; dramatic roof windows; natural-looking composite siding; manufactured moment frame; more

     
  • Letters

    Drywall back-blocking in action; A-frame appreciation; hard workers in California; more

     
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    Products

    Windows; energy conservation

     
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    Installing a Vacuum-Tube Solar Collector

    These highly efficient systems are a good choice in cloudy or cold climates.