Hi all! As posted in Roll Call, I'm planning to build an offset, reverse flow smoker. This'll be a family project for me and my dad. Neither of us currently knows how to weld, so that's the first step in what will surely be a great project.
Meanwhile, I am working on the design. As stated in the title, this will be a rectangular, offset, reverse flow smoker. The choice for rectangular is based on personal taste and local availability of materials.
Using the excellent tutorial on this forum, I have come up with the following dimensions (pardon the metric system):
One question I already have now; would it hurt or help to take the stack to exactly 36", making it approximately 10% oversized (on top of the +30% already incorporated for the lower volume)?
Thanks for reading :)
Meanwhile, I am working on the design. As stated in the title, this will be a rectangular, offset, reverse flow smoker. The choice for rectangular is based on personal taste and local availability of materials.
Using the excellent tutorial on this forum, I have come up with the following dimensions (pardon the metric system):
- Cooking chamber dimensions: 120cm x 50cm x 50cm = 300 liters = 18307 in3
- Minimum firebox volume (above the grate): 300 * 0.33 = 100 litres
- RF channel area (oversized by 30% due to small cooker volume) = 18310 * 0.004 * 1.3 = 95 in2 = 620cm2
- RF channel height = 620cm2 / 50cm (cooker depth) = 12.4 cm minimal height
- Exhaust stack volume (above CC) = 18310 * 0.022 (oversized 30%) = 403in3 = 6.6 litres
- Exhaust stack optimal height = 36" = 91cm
- Exhaust stack dimensions: height (above CC) = 85cm, diameter = 10cm (i.d.), volume = 6.7 litres
One question I already have now; would it hurt or help to take the stack to exactly 36", making it approximately 10% oversized (on top of the +30% already incorporated for the lower volume)?
Thanks for reading :)