Hi, how does your forge not "choke out"? In other words, how do you ensure there is enough oxygen? I attempted to build something similar, but using and old "roofers" burner (1 inch nozzle). If I close the hole as much as you (or Eric Thing does) it just "chokes out". Do you think I should feed in air via an extra pipe + hairdryer?
If I remember right, I think I made the jet hole smaller to combat the same problem. That way you can increase the gas pressure to get the same amount of gas coming out, but faster, which helps draw in more air. A flare helps too if you're running it in the open air. But still, when I read stuff online about burners I never really got any concrete stuff, and just playing around with the various things you can change (gas pressure, orifice size, amount of opening to let air in, and length of the tube) till something works seems to be the way to go about it. A place to start would be looking at the flame and figuring out if you need more air or fuel and looking up how to go about changing it to compensate. ronreil.abana.org/richtolean.jpg I don't know alot about forced air burners to comment though. I guess if you have no means of changing the orifice size then it'd be a way to get more air in.
Simon Heslop Thanks for the reply. Well, it seems then experimenting it is! As far as I am aware, I cannot change the orfice of the burner, but maybe drilling extra holes to let more air in might help... Anyway, thanks again, and I hope I will not blow myself up!
exelente...!!!!!
Hi, how does your forge not "choke out"? In other words, how do you ensure there is enough oxygen?
I attempted to build something similar, but using and old "roofers" burner (1 inch nozzle). If I close the hole as much as you (or Eric Thing does) it just "chokes out". Do you think I should feed in air via an extra pipe + hairdryer?
If I remember right, I think I made the jet hole smaller to combat the same problem. That way you can increase the gas pressure to get the same amount of gas coming out, but faster, which helps draw in more air. A flare helps too if you're running it in the open air.
But still, when I read stuff online about burners I never really got any concrete stuff, and just playing around with the various things you can change (gas pressure, orifice size, amount of opening to let air in, and length of the tube) till something works seems to be the way to go about it.
A place to start would be looking at the flame and figuring out if you need more air or fuel and looking up how to go about changing it to compensate. ronreil.abana.org/richtolean.jpg
I don't know alot about forced air burners to comment though. I guess if you have no means of changing the orifice size then it'd be a way to get more air in.
Simon Heslop
Thanks for the reply. Well, it seems then experimenting it is! As far as I am aware, I cannot change the orfice of the burner, but maybe drilling extra holes to let more air in might help... Anyway, thanks again, and I hope I will not blow myself up!