A neighbor asked me to light her furnace. I used to have floor furnaces 50 years ago so I figured I could help. It turned out to be much larger than mine (49,000 BTU)and lights differently. I'm not sure how. I crawled through the crawl space under the house while I had her hold the gas control over the blue dot (per instructions). I saw the underside of the pilot from the side, but couldn't get a good look because there's only a few inches of space under the furnace. I held a butane lighter as close as I could get, but nothing lit. I didn't hear a hiss or smell gas. Thinking about it later, it occurred to me that, perhaps, the pilot lights from the inside. There's a cap on top of a hole in the middle of the plenum. With a 2-foot long match I could reach an inside pilot light. I'd have to do it by feel because I can't see that far over.
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