It does not matter in the case of the 90 day deal, as that applies to everything. But, I would say since it says cabela's on the door..... well, you can make your own assumptions but I would say it is. I have returned stuff years after I bought it and they normally stand behind everything they sell. Not only that but masterbuilt seems to take care of their customers for long after the actual manufacturer warranty is up.
At our Cabelas that would be where the "Bargain Cave" gets it's items.
Energy loss is negligable. The glass doors are built pretty well and don't get that hot during operation.
Also, the cost to buy a replacement door (If you can even find one) would most likely be more than the energy cost.
As for the cleaning, if you don't want the window you don't have to clean it. It will cover over with build up just like the non window door does. After 2 or 3 smokes it will be blacked out.
Well said !!
Love my window in my door!!
And I doubt if anybody's gonna use a noticeably less amount of Watts without the glass in their door.