Hello. I was looking for some expert advice and suggestions to a problem I noticed down in my basement.
My HVAC unit has been running well for the past couple of years but I've noticed that my flue pipe that runs out from my unit drips water at one of the joints where two 4" flue pipes meet. The dripping water seems to come only when the furnace is running and seems to stop (or be much less) when the unit is off or at rest.
I've also noticed right at this joint that there's a white chalky powder or residue that's accumulated at this area. I was wondering what people's thoughts were and if it's a major thing to fix.
I assume the water is condensation and I'm assuming the white powder is from the chemicals of water mixing with the exhaust gases but I was hoping for some additional thoughts.
I'm planning to call several new HVAC specialists in my area to have them evaluate and correct (as the ones that put this in are no longer around..I wonder why) but I wanted to be as informed as I could as sometimes I haven't had much luck with honest contractors (as you can tell from the topic here..)
Any thoughts would be greatly appreciated! Thank you all.