( late to the party )
Leading with the solution rather than the problem.
There are three basic problems coming up in short order.
1) Cost of current heating system / fuel / running out of money spent on food, etc.
2) It's already to late and I'm cold.
3) long term saving the world, CO2 , etc. etc.
Skip 3, Near and dear to our hearts, and not the point at the moment.
Skip 1, They have options ( they just don't know it yet )
I think 2 is the answer. There was a lovely video back on page 5 ,
https://permies.com/t/160/191709/people-rocket-mass-heaters#1589069
Some Europeans putting in what looked to be a common area open air, rocket mass heater. A supper gilligan proof ( I know... ), BYOW, communal solution might go a very long way to showing a lot of people that warm asses warm cold people.
To cut the gordian knot of design / regulations / etc. Don't do it inside. It doesn't need a building permit if it's out in the back yard. Wrap a tent around it and call it a 'communal warming center'.
One possible template, a liberator on a custom non burnable skid with a bench or two of mass then enough structure to get the chimney up 10 + ft.
Rather than the push of 'this solves your problems' get it coming the other way to 'how do I get an ass heater closer to where I sleep? '
Ideas, not fully though out, and hope. It's some good work being done. At first slowly, and then all at once.
