I'm excited to test out my Zodi Hot Vent Tent Heater. This heater is no longer manufactured, but I bought one on ebay for $300. The heater is supported by a triceps exercise bar. (I cut the ends of the bar a little.)The setup is clamped to a tailgater tire table. The setup is very sturdy and won't tip over. I intend to use an 11lb propane bottle with this setup, since 11lb bottles are small enough to fit in my cargo box. The fan for the heater is powered by a homemade battery box. I made the battery box by mostly copying the example from this article by roofnest.

(Click on the thumbnail pictures below.)