It basically sounds like an Incinerating Toilet type of system that uses engine exhaust heat, rather than electric or natural gas. Perhaps if you had an electric option and a propane option, it would make it more appealing to those that boonedock away from sewerage facilities.
For those of us that have ready access to RV parks with sewerage or a dump station, it would be hard to justify the cost of something that is not needed. I'm not saying that it is not a good idea, but if I have a place to dump my sewerage for free, why would I spend the money to handle it with an incinerator type system? I am still going to pay the same at the RV park so it is not like I could calculate a return on my investment for this system.
