edennis Posted April 1, 2021 Share Posted April 1, 2021 (edited) Anyone have experience/thoughts with sticking an inline booster fan into the system to help a poorly drawing coal forge chimney? Something like this: Remove commercial link per TOS. Edited April 2, 2021 by Mod30 Remove commercial link per TOS Quote Link to comment Share on other sites More sharing options...
Dave F Posted April 1, 2021 Share Posted April 1, 2021 Just the 140°F max temp: Maybe show a picture of your setup? Quote Link to comment Share on other sites More sharing options...
Frazer Posted April 1, 2021 Share Posted April 1, 2021 It will probably help, but I would be concerned about the temperature of the flue gasses burning out the motor prematurely. It says max operating temp is 140F which, all things considered, isn't really that hot. You may want to address why your chimney isn't drawing well in the first place. Do you have any pictures? Quote Link to comment Share on other sites More sharing options...
edennis Posted April 1, 2021 Author Share Posted April 1, 2021 The forge on the left functions fine- no smoke in the shop. The new one is on the right- still yet to be finished. Unfortunately there's no way around all the bends in the chimney and I understand this is my main problem. Fortunately I have about 25 feet of vertical height outside the building which offsets this mostly . I'm just pushing it a bit far with the new side blast forge I think. Most of the smoke goes up the chimney, but I'd like a little more 'suck' for those moments when it's a bit more smoky. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted April 1, 2021 Share Posted April 1, 2021 Do you 100% close off the intake from the back forge when you are using the front forge? That would be the biggest help although it's going to be harder to get the up draft going with the gases cooling off in the horizontal run before making it to the vertical run. What about using an inducer fan to keep the fan out of the heat and soot? Quote Link to comment Share on other sites More sharing options...
edennis Posted April 1, 2021 Author Share Posted April 1, 2021 Yes, I have baffles and can close off either forge if not in use. I'm not familiar with the use of inducer fans for a forge. Would it be mounted somewhere inside the chimney? Quote Link to comment Share on other sites More sharing options...
Frazer Posted April 1, 2021 Share Posted April 1, 2021 Snagged from google. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted April 1, 2021 Share Posted April 1, 2021 NO as I said to avoid exposing the fan to heat and soot. It would come in at an angle to the chimney and induce a stronger draft---would help starting out too when the chimney effect was not strong too. Quote Link to comment Share on other sites More sharing options...
edennis Posted April 1, 2021 Author Share Posted April 1, 2021 Ah, I understand. I'll look more into that. Thanks. Quote Link to comment Share on other sites More sharing options...
edennis Posted April 1, 2021 Author Share Posted April 1, 2021 Well, I made the opening smaller via a temporary plate and some bricks to block the bottom and it pulls way better than before. I guess that extra velocity was a good thing. Still some kinks to figure out, but it is better. May still look into the fan idea. Quote Link to comment Share on other sites More sharing options...
Frazer Posted April 1, 2021 Share Posted April 1, 2021 Easiest thing first right? Nice shop by the way. Quote Link to comment Share on other sites More sharing options...
Chelonian Posted April 1, 2021 Share Posted April 1, 2021 Off topic but does the tuyere last fairly well in that forge? Is the end covered in clay or something? Also nice looking shop! Quote Link to comment Share on other sites More sharing options...
edennis Posted April 1, 2021 Author Share Posted April 1, 2021 It is a copper tuyere and lasts a very long time as long as air is running through it. Quote Link to comment Share on other sites More sharing options...
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