Are you a subscriber but don’t have an online account?

Register for full online access.

 
 
 
 

Geothermal

  • Letters

    Post-tension cables; fire damage; wrong railing test; skilled workers; radiant and geothermal; more

     
  • Image

    Ground-Source Heating & Cooling Gets Better

    Direct-exchange heat-pump technology is pushing energy efficiency through the roof, and because it requires far fewer feet of ground loop, systems can be retrofitted even on small lots.

     
  • 1004ak-02a

    Air Conditioning for Humid Climates

    Balancing cooling with humidity control is a tough job in the coastal South. A North Carolina hvac pro explains how the latest generation of cooling equipment meets the challenge.

     
  • Q&A: Fuel Cost Comparison

    Q: A customer asked me how to compare the cost of different heating fuels (natural gas, propane, oil, and electricity). Can you provide a chart with this information?

     
  • Image

    Fine-Tuning Forced-Hot Air

    A heating contractor details how to upgrade from a typical bare-bones heating system to one that delivers comfort and customer satisfaction.

     
  • A Builder's Guide to Geothermal Heat Pumps

    Installed correctly, ground-source heat pumps can provide comfortable, efficient heating in many climates. Here’s an overview of the available options.

     
  • Notebook

    Cordless battery update, lumber price predictions, “green” building defined, geothermal heat pump rebates curtailed, job-site theft, storm shelters in tornado alley, algae-resistant shingles, residential silos

     
  • Resources

    Estimating basics, laminate countertop primer, roofing material spec book

     
  • For What It's Worth

    Lightweight coil nailers, efficient two-fuel heat pump, hands-free fall arrest

     
  • Piping Layouts for Hydronic Heat

    The design of hydronic heat distribution piping affects overall comfort levels, regardless of boiler efficiency. An engineer describes the pros and cons of four piping layouts for hot-water heat.

     
 
 
 
JLC Field Guide to Decking