Just ordered a diesel heater for the rtt. Been racking the brain on how to heat the sleeping area with heat that won’t deplete a battery overnight or cause condensation. Hopefully this will do it. My Son got one last year for his camp trailer and raves about it. My truck is a diesel, so I carry extra fuel already. It makes sense. At $120, it’s potentially a cheaper way to extend the camp season... It comes in next week.