VintageCamperReno: Using the fuel-efficient cooking range to heat my rig

I have an off-grid, 20ft 1975 Fleetwood Prowler that I'm renovating, while using it as a work-studio. In seeing many blogs and vids, within the #CamperLife community, regarding heating options, I wanted to share what's working well for me, in hopes the info might help someone else.