Jose Gomez Posted June 7, 2008 Author Share Posted June 7, 2008 Thanks Ted, that means a lot. I will always remember how hard it was for me to learn about smithing and to get answers for any of the questions that I had before I found Iforgeiron. Now that I have the chance to contribute a little it sure is nice. Quote Link to comment Share on other sites More sharing options...
Frosty Posted June 8, 2008 Share Posted June 8, 2008 Frosty, in your design, isn't there a possibility that the difference in air density could act as a wall against the much warmer gases? Maybe not if the pipe comes out at the back of the chimney; as long as it doen't create disturbance that would increase the 'wall effect'. What do you think? No, it's a forced draft and the chance a column of cold air could overcome the force of a blower is pretty much nil. If there were a column of cold air that heavy in the stack a fire sure wouldn't do it. Are you familiar with naturally aspirated propane burners? The simple description is a jet of low volume high pressure gas (or whatever) is aimed down a length of tubing. It creates a low pressure zone and induces (draws) air (or whatever) into the tube behind it. These are very common devices used for everything from feeding burners on a gas range to making vacuum for storm drain cleaning trucks. It's old, well tested technology. but certainly not my design Bernoulli died in 1705. Frosty Quote Link to comment Share on other sites More sharing options...
matt87 Posted June 10, 2008 Share Posted June 10, 2008 ... not my design Bernoulli died in 1705. You mean... you're NOT that old!?! ;) Quote Link to comment Share on other sites More sharing options...
Frosty Posted June 10, 2008 Share Posted June 10, 2008 :p Frosty Quote Link to comment Share on other sites More sharing options...
Chris Pook Posted June 10, 2008 Share Posted June 10, 2008 nice job Jose but it is an ''overkill'' With this size of blower I run 5 forges in my school and smithy with very good result very cheap and much less work. see BP 1048 ''SIDE DRAFT CHIMNEY'' In our days we must think also how to save energy when it is not needed!!!!!!!!! HOFI In your opinion how many CFM would be best for a single forge? Quote Link to comment Share on other sites More sharing options...
Hofi Posted June 11, 2008 Share Posted June 11, 2008 Depend On The Fuel Chackl 50-60 Cfm Coal 70-80 Cfm Cokes 80-100 Cfm Presuer For The First Two 3'' Water Foe Cokes 4'' Hofi Quote Link to comment Share on other sites More sharing options...
John Martin Posted October 4, 2008 Share Posted October 4, 2008 Not to bring up an old thread for no reason, but that is one sweet forge. I do not think it is necessarily overkill. It needs to have major suction because of the ventilation setup, and the A/C. Perhaps a BP on this someday Jose? Quote Link to comment Share on other sites More sharing options...
Jose Gomez Posted October 5, 2008 Author Share Posted October 5, 2008 I have had quite a few people ask me for a BP of the forge, so I'll see what I can put together. In the meantime if you want any close up photos of a part of the forge let me know and I'll post them for you. Quote Link to comment Share on other sites More sharing options...
Ted T Posted October 5, 2008 Share Posted October 5, 2008 Jose, I thought it was a brilliant Idea. A guy has got to work with what he has, and then make it work for him. I will be using some of what you have presented (pre-heating the air). Although I do have a question about how the tube is fitted up through the chimney pipe. I have seen the photo from the top view. I cannot figure out how the chimney and tubing is connected. It looks like it all goes out the tubing in the end. yup, I am confused ok! :confused: Please help an old enquiring mind Ted T Quote Link to comment Share on other sites More sharing options...
rustyshackleford Posted October 6, 2008 Share Posted October 6, 2008 I love it, great execution Quote Link to comment Share on other sites More sharing options...
Jose Gomez Posted October 6, 2008 Author Share Posted October 6, 2008 Ted, If you take a look at the photo of the Back of the forge (The one with the forge laing down with the welder in the background) you will see that the air tube that feeds the chimney is inlaid into the back wall of the forge (so that it is exposed to the heat of the fire) and then comes through the "smoke shelf" just below where the chimney narows. by doing it this way I was able to introduce the air blast directly into the bottom center of the narrow portion of the chimney, which really helps to induce a strong draft. The air blast up the chimney just helps to keep the amount of escaping smoke down, seems to help reduce or dilute the amount of smoke from the chimney, and eases the load on the blower (because it is not running capped up, and is constantly able to move air). I hope this answered your question, If I didn't then let me know and i'll try again. Quote Link to comment Share on other sites More sharing options...
Ted T Posted October 6, 2008 Share Posted October 6, 2008 Jose It all clicked in and makes perfect sense now. Thank you for the response, I feel a little more knowledgeable! I always enjoy the posts that you present. They all seem to be interesting and expand our knowledge base. Thank You again! Ted Throckmorton Quote Link to comment Share on other sites More sharing options...
Tigman Posted May 20, 2009 Share Posted May 20, 2009 Jose, Did you ever get around to drawing up some plans for your forge? I know I'll gladly pay for a set as well as others! Thanks Mark Quote Link to comment Share on other sites More sharing options...
Glenn Posted November 25, 2010 Share Posted November 25, 2010 Interesting design brought back to the surface. Quote Link to comment Share on other sites More sharing options...
KYBOY Posted December 29, 2010 Share Posted December 29, 2010 Is that a miller 251 in the background? Quote Link to comment Share on other sites More sharing options...
DClaville Posted February 11, 2011 Share Posted February 11, 2011 this is just the solution for a problem I will be facing soon in my under way work shop thanks for posting and thanks for keeping this tread in the front rows :) Quote Link to comment Share on other sites More sharing options...
Tigman Posted September 23, 2011 Share Posted September 23, 2011 Any more pics of this?? Or plans? Quote Link to comment Share on other sites More sharing options...
eric sprado Posted April 12, 2012 Share Posted April 12, 2012 We've beat this horse before. All of the intricate accessory blowers are unneeded. Just watch some of the forging videos on YouTube and you will see smoke just SUCKED up well planned chimneys. Again-try this site: http://www.beautifuliron.com/chimneys.htm . Even a good hood works Fine. I have an old piece of barrel that I put over my fire until the chimney warms up and draws well...then I'm off and running. Quote Link to comment Share on other sites More sharing options...
Grant Posted April 25, 2012 Share Posted April 25, 2012 Good morning Mr. Gomez et-all: When you have a moment I have several questions about your now several year old forge. How is it working and with you experience would you (or did you) change anything. What is the diameter and number of blades and what motor and controller are you using. Et-all -has anyone build a similar system and what are your recommendations. -Thanks grant Quote Link to comment Share on other sites More sharing options...
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