open air burner

K

Kindyr

Joined
Dec 5, 2007
Messages
60
This is not exactly on topic, and for that I apologize, but this forum has the most collective knowledge regarding burners that I have had the pleasure of reading.

here is the situation. I am trying to come up with a propane powered torch that will work outside of a forge, sin a manner similar to a rosebud welding torch, for heating about a 5" portion of sheet metal up to red/orange.

I know it won't be as efficient as using an O/A rig, but propane is a much more convenient fuel for me to keep around the house. So I'm just trying to get ideas as to what the best way to go is.

I currently have a "Red Dragon" torch but given the size of the burner it does not concentrate the heat to just the area that needs heated.

My big debate in my head is whether I should be working from a forced air style of burner or a venturi style of burner. The venturi burner seems like itwould be the simplest to construct, but would it produce enough heat?

any feedback is appreciated.
 
Kindyr is this something you intend to use long term? There are propane-air (either compressed or venturi) and propane-oxygen torches available, I doubt they are cheap, but if you plan to do much work that calls for it it is a nice tool to have. If you are looking for something off the shelf try www.agfburner.com they have all types of burners, their web page is not very good, at least they have a catalog available in PDF now and they have been helpful on the phone and by email. One of the studios that I maintain has what they call a “hand type supper blowpipe” that runs on natural gas and compressed air. Not sure the size of ours, it would do what you want, our use for it is mostly heating copper, brass, and silver to anneal when raising or sinking vessels.

Todd
 
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