Is this considered a Class A chimney ?

[buildingmaint]

I was at Home Depot looking at Englanders NCH 13 wood stove. By their display they had " chimney kits and pipe" . I looked in one of the boxes to see what the pipe looked like, it looked like a galvanized outer covering inside the pipe was a stainless insulated pipe. Is this pipe considered class A? Can you run it outside as it is ? Or do you have to run it inside cement chimney blocks ?

 

[nshif]

Sounds like double wall Class A to me. I dont think galvanized is allowed inside. It wont last as long as stainless over stainless but if it is Class A ( should state so on the label ) it is code ok.

 

[Metal]

It is probably Type 103HT (sometimes called Class A) and it can be ran outside as is. If you are planning on burning coal or oil or live on a coast (near saltwater) you should use stainless casing, but otherwise galvanized is fine (people put B-Vent out their roof all the time and it has a galvanized casing, most roof flashings are also galvanized).