Most noncondensing residential furnaces use natural draft to drive the combustion process. Even 80%-AFUE furnaces with combustion blowers are natural-draft furnaces. The combustion blower in an 80% ...

The problem: Replacing an existing gas furnace with a new, more efficient furnace. The apprentice: Allen Charles Edwards (ACE) — First-year mechanic. The technician: N. Arthur Thomas Egan (NATE) — ...

Q: We have a high-efficiency condensing furnace that vents out a side wall. Should I be concerned about the icicles I see built up on the plastic pipe outside the house? -M.C. Kalamazoo. A: No. What ...

Since this is the start of the heating season, here are my eight top safety tips and suggestions for performing your own furnace and fireplace inspections. 1. If the fossil-fueled furnace is more than ...

Q. We had a chimney cleaning service inspect our chimney and they suggested that we install an insulated flexible aluminum flue liner in our chimney connected directly to our gas water heater vent.

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 ...

I'm going to guess that you have a newer furnace. If that's true, you're probably getting condensation in the flue. Older furnaces didn't have that issue. The hot flue gas they produced literally shot ...