Do not run the exhaust into the tank ..... Carbon monoxide is explosive...... Run your shop vac on "blow", or leaf blower to remove the fumes...
The National Fire Protection Association has assigned a flammability rating of 4 (severe fire hazard) to carbon monoxide.
- Flash point: Not applicable.
- Autoignition temperature: 609 degrees C (1128 degrees F)
- Flammable limits in air (percent by volume): Lower, 12.5; upper, 74
BEFORE YOU CUT....
Design your smoker on paper, taking into accounts, all measurements, where stuff goes.... Calculate the fire box and RF plate, cooking racks etc. so the build goes easy... In my signature line are calculators to help with the design.... If you need help, ask.... I would hate to see you have to "re-do" stuff.... So would everyone else on the forum.... Our members want you to build the best smoker there is...
Dave