You want to be rich and dead? Maybe you can get them to put a U-Haul
behind your hearse!
In my business, safety is very important. If I didn't follow code, I
coould get sued. Someone could get hurt, sick or die. That would be a
bad thing! If you don't care about ketting killed by your contraption,
make one operate like your post said. Then if you live till next year,
let us know how it worked. For me, I want both as much safety as
possible and as much efficiency as possible. I also like stuff to last
a long time. It is better for me AND my customers.
If a sheet metal flue needed replaced every two weeks, that would cost
my customer a lot more than he saved on energy. Especially if the wood
was free for the chopping, which it aften is.
I always consider safety very important, dead customers do me no good!
Besides, if you get someone killed. you can go to jail as negligent
homicide for a few years. How much research will you do in jail? I
know that would be a tough way for me to feed my family!