Class A through a cathedral ceiling ?

The class A will come off the top of a Masonry Heater, so I do not need a support box.
Does anyone know of a Class A that shows a detail of how to run it through a cathedral ceiling??

Thanks,
Nick

Since the chimney will be supported by sitting ontop of the masonry heater, the roof support bracket is just to center it in the framing, maintaining the 2" clearance?
What brand are these pics from ?

Thanks,
Nick

begreen,
Thanks for the info.
As for the "roof radiation sheild" I can not find one that is made for a cathedral ceiling in any of the Metalbest or Excel catalogs. Do you remember where the "roof diagram" came from?
I would need to ref when talking to the manufacture.

Thankis,
Nick

Duravent makes all those parts as well. A quick web search found pictures here:
https://www.chimneysupply.com/docs/subCat2Mo.php?grpid=4&subCat1ID=10

Most of the manufacture contradict them selves in the catalogs. It states a 2" clearance from combustionibles,, but then says it requires a "radiation shield", then other places shows it at 2" with no shield?? So is the "roof radiation shield" cut for the slope of the cathedral ceiling??
Reading the installation for both excel and Selkirk, I found no were that it states that it needs a radiation shield when passing through a roof,, just 2” clearance.



Nick

If you really don't need support, use the support box and cut the bottom out to slide the class A thru it. Seal the bottom
where cut out with stove cement. If support is needed you can add the roof support bracket & use both.
This will give you solid 2" clearance all around and a radiation shield. Don't know about other mfg's, but Selkirk support
boxes can be stuffed with insulation (theirs). The 2" gap needs to be insulated if passing from a heated area to the outside.