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Heating

  • Vent-Pipe Boot Repair

    Instead of ripping out and replacing a leaking pipe boot, try a noninvasive solution -- the Perma-Boot 312.

     
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    JLC Report

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

     
  • 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...

     
  • Q&A: Closing a House for the Winter

    I have customers who wants me to build a log home that will be used seasonally, for about two months of the summer and another two months in the winter. During the rest of the year they want to leave the house closed up and unheated. We're at the edge of the Rocky Mountain Front Range in eastern...

     
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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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    Net Zero House for a Cold Climate

    An architect shares his plan and process for building a northern Vermont house that produces as much energy as it consumes.

     
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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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    Heat Pump

    The Tranquility 27 Series geothermal heat pump is ClimateMaster’s latest and most efficient unit, with an EER rating of 27.

     
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    Products

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

     
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    Retrofitting a Heat-Recovery Ventilator

    The challenges are finding a good place for the unit and installing the ductwork without butchering interior finishes.

     
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    RenewAbility Heat Recovery

    By recovering heat from household wastewater, the Power-Pipe can reduce water-heating expenses by up to 40 percent, the maker says.

     
  • Installing an Efficient Noncondensing Boiler

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

     
  • 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 .

     
  • Insulating a Radiant Slab

    How much insulation is necessary under a typical basement radiant slab?

     
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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

     
  • Letters

    Protecting trees on site; radiant-heat claims revisited; unnecessary design regulations; pedal power; more

     
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    Products

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

     
  • Letters

    Another look at energy claims; feeling the financial squeeze

     
 
 
 
JLC Field Guide to Decking