minifarmer Posted August 16, 2009 Share Posted August 16, 2009 I'm putting up a new shop ,and it will be heated with a wood stove. My question is . Is it a good idea to run the wood stove and the forge chimney togather ,and if so how big should it be. thanks... @ vanfossenminifarmer@ yahoo.com Quote Link to comment Share on other sites More sharing options...
dkunkler Posted August 16, 2009 Share Posted August 16, 2009 (edited) For the forge a large free flowing flue is best. If you combine the two you may have creosote buildup problems from the woodstove venting into a too large flue. If you are building a masonry chimney you could use two flues running separately all the way to the top in one chimney , one large for the forge and one small for the woodstove; otherwise keep them separate. Edited August 16, 2009 by dkunkler clarification Quote Link to comment Share on other sites More sharing options...
welder19 Posted August 16, 2009 Share Posted August 16, 2009 No it is not recomended that two of anything go into one chimney. I wouldn't recomend putting a woodd stove too close to the forge any way as it would be WAY too hot to work, matter of fact if it were me I would want the forge and woodstove on opposite sides of the shop, I have heated with wood in my house and shops all my life and can tell you that working next to a wood stove is not a good idea let alone with another heat source like a forge. welder19 Quote Link to comment Share on other sites More sharing options...
Glenn Posted August 16, 2009 Share Posted August 16, 2009 Watch the smoke being exhausted from the chimney of a wood stove. That is the volumn of air the stove requires to operate. Watch the smoke being exhausted from the chimney of the forge. That is the volumn of air the forge requires to operate. Now add them together and THAT is the amount of fresh air you will have to get INTO the building to make up for the air going out the chimneys. You can pipe in outside air to the wood stove, and pipe in outside air to the forge to make up for some of the air needed. I would suggest you leave a window open and have both a working smoke and a working CO detector installed. Check your local building codes concerning how many flues are needed. Quote Link to comment Share on other sites More sharing options...
Randy Posted September 6, 2009 Share Posted September 6, 2009 Like everyone said, don't connect the two flues. The forge chimney should be a brick and a half square on the inside which translates to 12" round in stove pipe. Don't go any smaller! Quote Link to comment Share on other sites More sharing options...
Jacob Posted September 30, 2009 Share Posted September 30, 2009 What different considerations should there be for a propane heater? I have a ceiling-mounted warehouse heater and have been meaning to put the forge under it to share a 12" chimney. The main issue I was thinking of is grit buildup in the heater. It doesn't get all that cold, here. Quote Link to comment Share on other sites More sharing options...
welder19 Posted September 30, 2009 Share Posted September 30, 2009 It doesn't matter what types of gasses or smoke they all still need their own chimney, you don't even want two of the same going out one chimney because it can create draft problems for one or the other and if they were not tied together just right could also allow fumes or smoke back in through one if it wasn't running. welder19 Quote Link to comment Share on other sites More sharing options...
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