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Domestic Hot Water

  • 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.

     
  • Hot-Water Circulation Systems

    On-demand systems install quickly and can save both water and energy.

     
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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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    Package Deal

    Rheem’s SolPak solar hot-water heating package.

     
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    Products

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

     
  • Installing an Efficient Noncondensing Boiler

    Tax credits are great, but does your client really need a condensing boiler?

     
  • Cost-Cutting Heat-Pump Water Heater

    The Geyser heat-pump water heater connects to the tank of an existing water heater or any similar insulated storage tank but runs more economically than standard electric or gas-fired units, says the manufacturer.

     
  • 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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    Products

    Snow-melting stair mats; modulating gas fireplace; efficient heat-pump water heater; permeable pavement; sump pump; more

     
 
 
 
JLC Field Guide to Decking