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 ...

Residential gas-fired equipment is changing and so are the related codes. As efficiencies and energy factors creep up — whether organically or because of regulation — the installation processes and ...

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...