Any idea’s as to why the gas furnace is partially exhausting out the water heater exhaust?
Thanks
Jim
Any idea’s as to why the gas furnace is partially exhausting out the water heater exhaust?
Thanks
Jim
Blockage in the flue above, I had a birds nest in a flue just like that once. I’ve also had people turn on the whole house fan while I was testing the furnace because they were hot. :). That drew in the combustion air real quick.
Why do you say partially? Does it resolve itself when things warm up? Cold flues sometimes take a few seconds to get flowing properly.
Sounds like something simple we can look into, a possible partial blockage in the exhaust pipes.
I can relate to the whole house fan…I was in an attic and the client decided to find out what that switch was…about peed my pants…
If it is a tight home then the furnace is lowering the pressure in the home so you could be getting a back feed as it is pushing more air out of the house then what is leaking in .
An open supply pipe from the outside to near the furnace could be the simple fix .
I would recommend they get a Furnace man in to fix it.
Hi Gerald,
After 1 minute and 32 seconds my Tiff meter is no longer indicating an alert.
That would be quite a force of hot air/gas to get to the Y junction then travel (at the same time) upwards out the exhaust and downwards out the hot water exhaust.
I checked it three times, and each time was the same results. The exhaust pipes were already warmed up.
Always during the initial startup?
I thought about this before I did my third test, so I opened the door to the garage/outside. Not a fresh air intake issue.
Yes
On the second test I shut down the furnace and turned up the hot water heater, then kicked on the furnace, and all was as it should be.