Two manufacturers of plastic venting systems are pushing for a national fuel gas code in the United States that requires Underwriters Laboratories Inc. certification for use in some natural gas-fired ...

Should PVC schedule 40 pipe and fittings continue to be permitted for combustion exhaust venting? You and I have come across PVC that has gone from white to many colored shades: from light yellow to ...

[Editor’s Note: This is part two of the two-part series on combustion analysis.] Safety of the appliance should be the primary goal of all technicians. The production of carbon monoxide (CO) in the ...

With proper care, a flue pipe made of good single-wall steel should last many years. I use a German Weso “tile oven” woodstove for night and sunless-day heating in my passive solar home. The design of ...