Our unit is supposed to have the polar package. When checking the stamps on the window, they only say tempered, and from what I can see they are only single pane. I know the furnace should be 40k btu, but I'm not sure where to find that at. I can find the exhaust, but not the main housing. Unit is a 2016 377flik. Any ideas? Thanks!
The inside if the windows on our sabre say "insulated" on a bright green sticker. We had to order them and they showed on the window sticker type papers shipped with our unit.
When we were shopping new campers a couple years ago, i would have probably gone with the sierra or sandpiper, but dual pane windows was on my "must have" list. And at that time they weren't an option on the order sheet. I might have been able to have had them upgraded thru a rep., but they weren't on the normal order sheet.