sandman16 Posted July 27, 2017 Share Posted July 27, 2017 So I'm looking at a couple gas forges. One has a choke, the other does not. They are both round body with burner at an angle on the side. What I'm wondering is does a choke make as much of a difference in performance as some say it does? Thanks for any advice, B Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted July 27, 2017 Share Posted July 27, 2017 Yes or no depending on the burner and what you want the forge to do. Quote Link to comment Share on other sites More sharing options...
sandman16 Posted July 27, 2017 Author Share Posted July 27, 2017 Right now I'm just getting into forging so its a start. Mostly though eventually id like to get into making blades. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted July 27, 2017 Share Posted July 27, 2017 If you want to make blades you probably need a method of adjusting the forge to be reducing! If you are doing ornamental or architectural work or large section work running neutral to a bit oxidizing is OK Running very oxidizing is only OK if you are using it to create a texture on the metal Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted July 27, 2017 Share Posted July 27, 2017 The other use of a choke is to prevent hot exhaust from running up throw your burner after shutdown, if it is positioned vertical down, or at a vertical down angle. Quote Link to comment Share on other sites More sharing options...
sandman16 Posted July 27, 2017 Author Share Posted July 27, 2017 so if I'm understanding a choke would be beneficial for what I want to do? Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted July 27, 2017 Share Posted July 27, 2017 Not knowing if your forge is built with a vertical burner makes it hard to say. At this stage you may not need a lot of atmosphere control but may need it later. When you are learning to drive you probably don't want to do it in a Formula1 racecar even if your end goal is to enter Formula 1 races Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted July 27, 2017 Share Posted July 27, 2017 It's better to have a choke and not need it, than to need one and not have it. They also help to keep critters like mud daubers out of the burner when not in use. Quote Link to comment Share on other sites More sharing options...
Frosty Posted July 27, 2017 Share Posted July 27, 2017 59 minutes ago, Irondragon Forge & Clay said: It's better to have a choke and not need it, than to need one and not have it. They also help to keep critters like mud daubers out of the burner when not in use. Inndeed, however if you can convince the mud daubers into the burner while it's in use, open the choke all the way! Shoot some video too please. Sorry, couldn't resist. A choke may or may not be necessary depending on what you need, ambient conditions, conditions in the forge, etc. To use one beneficially is a matter of experience, not asking a general question. Some burners need a choke because they're poorly built and a choke is the only way to tune the fuel air. A smaller jet at higher pressure draws more combustion air so it's easier to build a burner to draw more air than it needs and install a choke to reduce the air. This doesn't make them bad, just maybe not optimum. I tend to judge the quality of the burner build by how closed the choke is to achieve a neutral flame. If it's almost closed you can do better while if it's almost all the way open it's putting the maximum amount of fuel in the forge at one time as reasonably possible. Sorry if that muddies the waters but it's my reasoning. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted July 28, 2017 Share Posted July 28, 2017 19 hours ago, Frosty said: Sorry if that muddies the waters but it's my reasoning. To me, it is just like any other control; a tuning opportunity on the one hand, and part of the learning curve on the other. Quote Link to comment Share on other sites More sharing options...
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