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Solar

  • Rinnai. The RH360 solar reheat kit provides efficient, consistent tankless backup for solar water heating. Previous other solar tankless backup solutions fed the hot line from the solar tank directly to the tankless backup unit, which would heat water when the temperature started to drop, which could lead to temperature fluctuations, the firm says. The RH360 kicks in only when the water temperature in the solar storage tank drops below a pre-set point, drawing the coldest water from the bottom of the solar storage tank to the tankless unit and returning it to the top of the tank, helping to maintain consistent-temperature hot water delivery, the maker says; minimal tank mixing allows for optimization of solar gain, and the elimination of off-cycle thermal circulation decreases heat loss. 866.746.6241. www.rinnai.us.

    Solar Tankless Water Heating Backup From Rinnai

    Rinnai. The RH360 solar reheat kit provides efficient, consistent tankless backup for solar water heating. Previous other solar tankless backup solutions fed the hot line from the solar tank directly to the tankless backup unit, which would heat water when the temperature started to drop, which...

     
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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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    JLC Report

    State legislators deal blow to residentialsprinkler codes; robo-houses provide a window on energy-upgrade payback; more

     
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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.

     
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    Products

    Foam sealant; self-adhesive tile underlayment; geothermal heat pump; metal countertops; solar-powered exterior fixture; more

     
  • Retrofitting a High-Tech Heating System

    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

     
 
 
 
JLC Field Guide to Decking