Re: Furnace Tear Down
Here are the pictures of our grim reaper furnace.
BTU Size: 88000
Age: 20 years
Manufactured: 1992 | In Service: 1993 | Retired: 2012
General overview before tear down.
Main duct work blower and dismounted furnace control box.
Exhaust blower, gas flow regulator, and that piece of PCB is the in-line thermal combustion safety shutoff fuse.
Condensate holding bulb, and furnace control box.
Furnace control box.
Primary Heat Exchanger.
Secondary Heat Exchanger.
I started with the combustion box intake.
Everything is out of the combustion box.
Exhaust fan is removed.
The removed exhaust fan. In the lower left hand corner you will see the control box.
Removed control box and fuel value.
Furnace doors, combustion box front and top, gas spreader fins.
A look at the primary heat exchanger.
Removed transfer plate and revealed this.
More at-part-level picture.
Primary heat exchanger removed. It is face down due to the carbon flakes that were falling out.
Secondary heat exchanger.
Main blower removed.
Both exchangers removed.
Just an empty shell.
Main blower removed from shell, and on the scale for recycling.
Processed main blower.
Another look at the blower, the fins were extremely sharp.
Processed exhaust fan, also known as the power ventilator.
Another picture of the fan, showing all the soot and carbon buildup.
These pictures were taken the way they were to contain the carbon flakes as much as humanly possible. Sadly, I could not take some pictures due to I had to remove and contain the items right away. This furnace was retired due to releasing around 5294PPM of CO2 out the flue which was beyond federal limits and the readings of CO2 around the furnace was 238PPM again exceeding federal limits.
As I said in an earlier post it is a shame we just have the attitude of it'll work, it has to. But due to our human imperfections we have introduced appliances that can kill us without us knowing into our dwellings.
All of you are like family to me. Have your appliances serviced and cleaned! It might just be the difference between life and death, and between your paycheck and high energy bills.