Subsenix

Interesting comparison. Covertly smoking a joint is pretty different than accidentally burning your house down using a non approved, uninsured heat source....

I'd love to see this become reality though. Really would. It's cool technology.

How likely is it that a homeowner would be able to obtain insurance for their home with a Rocket Mass Heater inside?

While I agree, insurance companies are notoriously assholes about denying claims. I feel like you're belittling the point, but until homes can be insured with this type of heating, it's just not going to take off, at all.

Your post said you wanted to get solutions into more brains. This is a real world concern for, I would argue, the majority of homeowners. Simply saying it will be ok isn't the same as having coverage in place in the event of a catastrophic loss. Belittling the concern isn't helpful.