Class A vs UL-103 HT Chimney Question

[leeave96]

I was reading one of Woodstock's Prefabricated Chimney articles on their website (and my stove manual) and they say to use "UL Class A - All Fuel Approved to 2100 deg F" chimneys if you are going the prefabricated route.

My question is - when I look at some of the various pre-fab chimney - like Duravent or Selkirk, they don't state "Class A" but show their chimney pipe to be rated for 2100 deg F and UL-103 HT approved.

I am sure the Class A and UL-103 HT chimney pipe are the same - but if my building inspector says, show me it is a Class A chimney pipe but the markings are 2100 deg F and UL-103, how do I explain?

Or - is there a difference between the two?

Thanks!
Bill

 

[dougand3]

They are the same thing....a semantics thingy. I would bet the inspector would be satisfied seeing "approved to 2100 deg F" and then seeing that UL-103 HT is rated to 2100F would satisfy. You could find some webpage that shows the pipe names are synonymous.