Bowers · Furnace
A 1994 furnace out, a two-stage unit in
The combustion test showed 140 ppm CO in the flue and a hairline crack in the exchanger. The customer had a week of space-heater evenings; we had the new unit in on a Tuesday.
1 dayOn site
80k BTUInput
96%AFUE
2 weeksPermit to final
Eight frames, one camera
The job, frame by frame.
Garage closet in a Bowers tract home, camera on the washer for every frame.
01 · Before
02 · Assess
03 · Remove
04 · Prepare
05 · Install
06 · Connect
07 · Commission- 08 · Finished
What went in
Equipment and readings.
- Two-stage 96% furnace, 80,000 BTU input, variable-speed blower
- PVC intake and exhaust through the garage wall; old B-vent capped
- Condensate trap, neutraliser and overflow switch
- 4-inch media filter cabinet, MERV 13
- Combustion at commissioning: 9 ppm CO, 8.1% O2
“They showed us the CO number on the old one before touching anything. That was the whole decision.”