Now This is Just Cold...

Recognize this? This is the concentric vent adapter (the air in/exhaust out thingy for the furnace) at my plant. Frozen solid. Apparently, the incoming air cooled the outgoing air a little too efficiently, condensing and freezing the water vapor in the furnace exhaust.

And the furnace won't run when this happens. Who knew...

I dub thee, the Furnacicle!