Lawrenceblacksmithing Posted January 8, 2018 Share Posted January 8, 2018 I'm wanting to move my forge indoors to a shop I have but I'm concerned about the ventilation of the smoke. I'm using a coal forge. Any links to other smiths or pictures and notes on a set up you use would be great. If you don't mind sharing. I'm just trying not to smoke out the whole shop. Quote Link to comment Share on other sites More sharing options...
Glenn Posted January 8, 2018 Share Posted January 8, 2018 You may be able to get some ideas from the section on Chimneys, Hoods, and Stacks under forges section. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 8, 2018 Share Posted January 8, 2018 How ventilation is done depends a lot on your LOCATION; which we don't know... Make up air isn't much of an issue down here on the Southern border of the USA but may be a major issue north of the Arctic circle. Quote Link to comment Share on other sites More sharing options...
Lawrenceblacksmithing Posted January 8, 2018 Author Share Posted January 8, 2018 I'm in North Carolina Quote Link to comment Share on other sites More sharing options...
Charles R. Stevens Posted January 8, 2018 Share Posted January 8, 2018 Think of your coal forge as a fireplace. Your hearth is at waist hight like a cooking fire, and your fire proper is out on the hearth like a rumford style fire place. Side draft hoods with 10-12” flues work very well, tho one should consider general shop ventilation as well. One example would be Steve Sells’ shop. He uses a side draft chimney on his coal forge and a cupola to vent the shop. We actually have a member who specializes in ventilation as a day job who can help with more specific recommendations as to change over rates. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted January 8, 2018 Share Posted January 8, 2018 Does your shop have a wood stove as well? My shop out here in the desert has open gables and the chimney for a coal forge is just a 10' long 10" diameter spiral seamed duct pipe stuck at a sharp angle through a hole in the metal wall (it was the previous users chimney pass through before the hail storm trashed his roof and the pull offs came my way. Wouldn't work as well as in a shop that is more buttoned up... Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted January 8, 2018 Share Posted January 8, 2018 4 hours ago, Lawrenceblacksmithing said: I'm in North Carolina Welcome to IFI, if you edit your profile to show your location it will show up with every post. When us old timers click away from this thread we will not remember where you are. My coal forge is vented with a side draft hood straight up with a 10 inch flue. No problem with smoke in the shop. Quote Link to comment Share on other sites More sharing options...
Lawrenceblacksmithing Posted January 8, 2018 Author Share Posted January 8, 2018 Just a regular flue no fan or suck to help pull the smoke out Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted January 8, 2018 Share Posted January 8, 2018 Yes, once the flue is heated up it pulls a strong draft, no fan needed. Quote Link to comment Share on other sites More sharing options...
Lawrenceblacksmithing Posted January 9, 2018 Author Share Posted January 9, 2018 Ok so how think so the metal of your hood Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted January 9, 2018 Share Posted January 9, 2018 It's 18 ga sheet metal, not very thick but has been in service for 15 years without any problems. Quote Link to comment Share on other sites More sharing options...
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