Furnace brand?

[04Roadglide]

I intended to pull out my owners paperwork on our 2018 Envoy to determine what furnace we have. But I forgot before we took it back to storage 25 miles away.
It has a Coleman-Mach AC and I know the furnace only has one exhaust opening outside. I'm wondering if I should have some spare parts (high limit,sail switch etc.)
Would anyone have a guess what brand I'm dealing with?
And just for clarification, the Envoy, to the best of my knowledge is the twin sister to the Jayco Greyhawk.
Thanks Chris

 

[pconroy]

Odds are it's Atwood/Dometic. Just my guess.

 

[OnTheGo]

Jayco CS will know if you provide your VIN.