Chimney venting

[relliott]

Originally Posted by dmacy

Robert

Mike stated in his original post that the access door was stuck closed.

I try to open and take pictures as you stated but many access doors are blocked or stuck as they have not been open in a long long time.

Mine today was just a piece of rust and fell apart as I pried it.
Sorry I missed the stuck part as I had just walked in and dead tired.

[Joe Farsetta]

The chimney in the photo has a clay flue/liner. The condition of that liner is what is in question. When the furnace was changed to a higher efficiency model, it may or may not have caused condensation inside the flue. Regardles, ALWAYS state that you cannot see the entire length of the flue and recommend a Level II inspection be performed by a certified sweep.

Regardless of what you may be thinking... ALWAYS call for the Level II.

[Michael J. Merino]

Originally Posted by relliott

Mike next time you should open the cleanout and take a picture up to the top.
One with flash and one with out.

i had a pie pan cleanout in a 1925 wood frame house that was all corroded and the chimney filled with corrosion.
The flue most likely ends in the bottom and the flue gasses are eating the masonry Mike.

On a mid -effieciency furnace such as I had today the flue gases are corroding the chimney from the inside out.
I am guessing that if you went in the attic today ,you also saw efflorescence there too.

To bad you did not get a shot looking down the chimney,as I never got on top of my Gambril roof .

i can share some photos later but I am doing the report on the road as I am tripping for the weekend and going to Cheese Head territory.

Lucky me will have wifi and upload my shots there.

Mike all the old houses have cleanouts.

The clean out door was stuck shut.