zogger
Tree Freak
The Sotz kit was airtight, and stamped steel. The air intake was specifically designed so that the barrel could not get hot enough to burn out. The owner of the Co was an engineer who made them out of a specific type of steel.
After the Consumer Reports article, the Gov came down on them for not doing emissions testing. The owner of the Co argued:
1) No one has demonstrated that they are not compliant, and
2) You can not afford to do that testing for a $35 kit.
The owner lost the argument and was forced out of business. Don't know who the rules apply to, it may depend on the volume of your sales.
They also developed the Monster Maul (which I used for years) and other wood handling equipment (hand tools like log rollers, etc), and an air intake device that would open when the stove was cold and close when it was hot (it was temp adjustable). They also offered a catalytic converter device for your stove pipe. They sent out a monthly newspaper with their products, and owner stories. This was before the internet, it was really cool.
I still have both my kits, and I started using them to heat my house +/- 1980. One I used for my house, the other for the upstate cabin. Only had to replace one barrel for each kit, and that was because I let them rust.
This was truly a good Co making a superior product that the Gov put out of business. I believe that the other wood stove companies, who were all selling $500 - $1,000 wood stoves at the time, that had been beaten in efficiency and total BTU output, had something to do with this.
You could offer the wood burning world a nice set of measurement and specs and pictures. Perhaps with looking at that, and the kits they have today, some alterations might be made to make them work much better. I mean the price is certainly spiffy.