Sent early 2001 or late 2000.
This is me. Another “Woe is me” story came to mind the other day. It was a dark and stormy night. Well, actually, it was broad daylight, but I have always liked the sound of ‘it was a dark and stormy night’. But I digress.
I was called to a mobile home because the furnace would not work. I relit the pilot and all seemed well. I then turned on the main burner, and again, all seemed well. Just as I was beginning to think that; (1) The homeowner was nuts, or (2) I was at the wrong location. That has happened before, but that’s another story.
I then noticed that the main burner flame had gone out, and I thought, huh? I must now pause and explain that this mobile home had just had a new roof put on, and in doing so the vent had been removed from the furnace. This type of furnace has one vent pipe inside the other. The inner pipe is for the exhaust to be vented to the outside, and the other pipe is for fresh air for combustion to be brought in to the combustion chamber. The roofers did not attach the inside pipe. This caused the exhaust to recirculate back into the furnace. Now, who can tell me why this was a problem? Very good! You may stay after class and clean the erasers. Yes, there is no oxygen in the exhaust, which caused the flame to go out.
When I opened the access door to lite the pilot, this of course let oxygen into the furnace. I then reached into the furnace and hit the trigger on the hand held igniter. What happened next was somewhat interesting. A rather loud boom was heard. This was followed by some of the prettiest blue flame roaring out of the access door of the furnace. This flame did several things. It melted the nylon cuff of my shirt to my wrist, while setting fire to my shirt sleeve. The rest of the flame bounced off the hallway wall behind me. I had just put the fire out on my shirt, when I heard the lady of the house say in a rather timid voice, “Is every thing alright?” I said, “sure, sure, everything is fine. I was just doing a test.” I’m not sure if it was the noise, the flame bouncing off the wall, my shirt being on fire, the smell of burnt hair and fabric, or some combination of these things, but she had a remarkably doubtful look on her face. Carl