We’ve installed a mod/con boiler. The specs say it can be vented directly through the back wall, and in fact this is the preferred method over venting through chimney. But neighbor objects to the ...

Chlorinated polyvinyl chloride (CPVC) first made its way into the world of venting systems in the residential market. In recent years, CPVC has been used to vent Category IV high-efficiency boilers.

Things are changing in the world of venting for condensing boilers. For many years, the choice for venting high-efficiency appliances was limited to AL29-4C stainless steel. AL29-4C was first used in ...

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 ...

Cardom Plumbing & Heating, a plumbing and heating service provider serving Arvada, Colorado, emphasizes the significant energy savings and performance benefits available through modern high-efficiency ...