Originally Posted by
Mike Reinholtz
Josh- high efficiency furnaces use draft inducers that have condensate drains built into them, I can't tell by the pictures if yours has this. (not close enough on the draft inducer). Having a pilot light has me leaning towards this not being the case.
There are a couple options to fix this:
First- Not only would this fix your problem, but even add to the efficiency. I would really consider adding a spark ignition kit or glow rod and get rid of that pilot light.
Second would be to look into the actual exhaust fitting, and looking into how much air is blowing into it. Insulating the exhaust is smart, but may also be contributing to your problem by keeping the air cold blowing down into the heat exchanger.
Something I would be curious about is where the water is coming from, although it may seem straight forward I would really want to grab an inspection mirror and flashlight to look up above the burners and make sure there aren't any holes in the heat exchanger. That would be an immediate reason to replace that furnace (again with the threat of CO). Water condensing in this area is notorious for rotting out older heat exchangers. This is mostly avoided today because furnace manufactures stamp their exchangers out of stainless steel.
Hope that helps;)