Is this a class A chimney?

[LittleSkidoo]

It was installed in the mid 80's on a gas furnace and water heater. I can't find any markings or numbers stamped on it. Its in great shape.

 

[drz1050]

What's the diameter? It looks like class A to me.. my 6" class A has an outer diameter of approx 9". Double wall is a little over 7"

 

[Heatsource]

looks like metal bestos class a pipe
how about a pic of the cap, and the top end of the pipe with the cap removed/

 

[LittleSkidoo]

The pipe is about 8 3/4" OD and the inside is stainless. Should be ok for a small wood stove?

 

[bholler]

The pipe is about 8 3/4" OD and the inside is stainless. Should be ok for a small wood stove?

Have it inspected by a pro. Being that old there could be some condition issues

 

[LittleSkidoo]

I noticed that the chimney is too short. It is within 10 feet of the peak and I need to extend it 2 feet. I can't find the same diameter pipe, everything is bigger these days because of more insulation. I'll salvage this one for gas appliances and buy a new one. I would feel safer, this chimney is 30 years old.

 

[Heatsource]

View attachment 162783 View attachment 162784

The pipe is about 8 3/4" OD and the inside is stainless. Should be ok for a small wood stove?

it SHOULD be ok, but like bholler suggests, the best advice is to have an expert inspect your system from top to bottom.
no one should endorse using a chimney via picture on hearth.com...