oldshove Posted April 15, 2017 Share Posted April 15, 2017 I know I read it some where on here but cant find it again. Size of fire opening and flue size [12in flue] some how I have it my head that the fire opening should be smaller than the flue or do,s it not matter. thanks jmac Quote Link to comment Share on other sites More sharing options...
wpearson Posted April 20, 2017 Share Posted April 20, 2017 correct search supper sucker Quote Link to comment Share on other sites More sharing options...
turbo7 Posted April 20, 2017 Share Posted April 20, 2017 Correct, the larger the flue size to fire opening ratio the better the draft. Quote Link to comment Share on other sites More sharing options...
jlpservicesinc Posted April 22, 2017 Share Posted April 22, 2017 On 4/20/2017 at 2:17 AM, turbo7 said: Correct, the larger the flue size to fire opening ratio the better the draft. Up to a certain point.. Then it becomes whether or not the area to length vs temperature comes in.. The industrial smith I know uses a 14X14"X 12'size.. I use a 12X12X15'.. If you use coke you can get away with a smaller size or height as the heat stays on for longer time.. I use a hand blower with soft coal so the on off on cycles can reek havoc if not designed properly.. There is no smoke shelf in my hood/stack design.. Here is a link to my design in action.. https://youtu.be/780yI_RMNRE Quote Link to comment Share on other sites More sharing options...
oldshove Posted April 22, 2017 Author Share Posted April 22, 2017 Thanks for the reply's and info guys. After about a hr I found the plans again I'm sticking with them. jmac Quote Link to comment Share on other sites More sharing options...
jlpservicesinc Posted April 22, 2017 Share Posted April 22, 2017 9 hours ago, oldshove said: Thanks for the reply's and info guys. After about a hr I found the plans again I'm sticking with them. jmac Where did you find them? Quote Link to comment Share on other sites More sharing options...
Glenn Posted April 22, 2017 Share Posted April 22, 2017 Lester Beckman designed the original super sucker side draft unit. Super Sucker - click here Super sucker is just a box with the chimney opening on the top, and the fire opening on one side. The fire opening is cut at an angle to act as both a roof and to get it closer to the fire. Bottom is 12-1/2 x 10 inches Back is 12-1/2 x 12-1/2 inches Top is 12-1/2 x 15 inches Legs are 3/16 x 1 inch Front is constructed from 3/16 x 3 flat bar with a 10x10 opening Chimney opening (12 inch diameter) is larger than the fire opening (10 x 10 inches) in area. Quote Link to comment Share on other sites More sharing options...
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