We have a new heat source. Max, being a big fan of boats, knew they made wood stoves for boats. So he did a little web searching and discovered this nifty little wood stove for the Airstream. It's a Newport by Dickinson Marine, and it will burn wood, charcoal or pellets. It's 14 inches high, by 7.75 inches wide by 9 inches deep. Max cleverly mounted it on a table pedestal leg from Camping World. The legs come in different lengths, so you can choose whatever you want. The only downside is that it calls for a permanent 3 inch fresh air intake - the same size as the vent pipe. But since we are basically burning twigs, for our purposes we can crack open a window when we use it.
You can see in the photo below that the spot we chose was right next to the smoke detector. We didn't think that would work out too well, so we will have to remount the smoke detector in a different spot.
I cringe at making any holes in the Airstream, but Max is braver than I, so here is the Smoke Stack on top. Looks pretty sporty, doesn't it?