Have you heard the old saying, “You don’t know what you don’t know”? It’s an axiom homeowners should always keep in mind when thinking about the mechanical and structural systems hidden behind the ...

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 ...

In response to consumer demand for higher efficiency boilers and updated regulations from the U.S. Department of Energy, the conversion from noncondensing to condensing vent systems becomes necessary.