Like everything else, I did a deep dive on heaters during my initial build. I ended up installing a Propex HS-2000 6500BTU furnace, but later switched to a generic diesel heater that I purchased on Amazon. I didn’t find that the Propex was sufficient in the lower 20’s or colder in my van. Additionally, the cost of diesel means that I’m getting three times the heat output for less than half of the cost of propane. I sold my Propane furnace to pay for my entire diesel heater installation.... Read the rest