Andrew Golabek Posted October 11, 2017 Share Posted October 11, 2017 Photos in sequence of my burners flame as I made improvements, how is the last flame look? Quote Link to comment Share on other sites More sharing options...
Frosty Posted October 11, 2017 Share Posted October 11, 2017 Not bad, still a little rich. What type burner are they? I know you're messing with liquid fuel I'm wondering if they're naturally aspirated or gun (blown) burners. How does it work in a forge? In the forge is a different world for the burners, important factors change. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted October 11, 2017 Author Share Posted October 11, 2017 Naturally aspirated, originally based off the modified easy burner. The fuel is simply vaporized, but only a very small portion at a time <1ml. Works exactly like a normal burner it seems. Next weekend I'll make some adjustments to make it less rich then, thank you. Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted October 11, 2017 Author Share Posted October 11, 2017 It seems to lean out more as it warms up. Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted November 29, 2017 Author Share Posted November 29, 2017 Both pictures as the forge is warming up, got to take one next time I use it. There is no "dragons breath", even with the burner port sealed around the burner. Why does the flame seem to disappear once its heated up? How can i seal the burner port arpund the burner effectively? Quote Link to comment Share on other sites More sharing options...
Buzzkill Posted November 29, 2017 Share Posted November 29, 2017 I believe Mikey explained why flames seem to disappear or change in color and length as the interior of the forge heats up in either his Burner 101 or Forges 101 thread. I don't recall it well enough off the top of my head to offer the explanation. Dragon's breath can be difficult to see in broad daylight especially looking straight into the heating chamber. If you wait till nearly dark and take a picture from the side you'll probably see something different. I just use scraps of my insulating blanket around the burner (outside the forge of course) once I have it aimed the way I want it to seal it off. I hit it with a little bit of rigidizer (fumed silica in water) when packing it in and let it air dry for a while before firing, but you probably don't even really have to wait. BTW, you're braver than I am. The thought of vaporizing the liquid fuel to make a naturally aspirated burner makes me a little nervous. It's probably because I have a limited understanding of what's going on there, but I am impressed with the functionality of your design. Quote Link to comment Share on other sites More sharing options...
Frosty Posted November 29, 2017 Share Posted November 29, 2017 34 minutes ago, Buzzkill said: BTW, you're braver than I am. The thought of vaporizing the liquid fuel to make a naturally aspirated burner makes me a little nervous. It's probably because I have a limited understanding of what's going on there, but I am impressed with the functionality of your design. You and me both Brother! People don't usually realize how dangerous fuel oils are. Guys on the loading docks take classes in how to safely fill a tank truck and it's not read a paragraph and have an old hand show you which valve to turn. Fuel oils have the terrifying trait of having an atmospheric saturation point smack in the center of it's flammable ratio. Meaning ANY air in a fuel oil tank will burn explosively, full or empty, ANY AIR. The reason your flame seems to disappear is because the furnace liner is glowing more brightly and the flame is pretty well balanced. This is the only blue flame NA oil burner I've seen. I sure hope you aren't running it anywhere near things you value. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted November 29, 2017 Author Share Posted November 29, 2017 Not running on oil, havent tried oil, it is gasoline, thank you though! Quote Link to comment Share on other sites More sharing options...
Frosty Posted November 30, 2017 Share Posted November 30, 2017 Ahhh, still crazy dangerous but not nearly so much as fuel oil. It takes a LOT of process to get fuel oil burners to work properly in a boiler and it'd take a serious bump up to get a NA oil burner to work. Gasoline should be doable with a automotive fuel pump. Safer but I'm still not encouraging it. Can I interest you in a more sensible burner design? Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Jasent Posted November 30, 2017 Share Posted November 30, 2017 Hope you plan to seal that wool soon. Beautiful flame! Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted November 30, 2017 Author Share Posted November 30, 2017 Yep the wool has just been rigidized, that is the next step! Yeah, probably will get a regular burner designed eventually. I do not recommend "my" type of burner, very difficult to get working well, and more dangerous, it is just a cheap temporary solution, and I'm having fun experimenting. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted November 30, 2017 Share Posted November 30, 2017 Actually kerosene, and then gasoline burners have been around for over a century, and both the original hand burners and the new oxy-gasoline torches are available today. The classic pump-up gasoline hand torch makes a single flame envelope of neutral blue, which is nevertheless rated by so-called experts as burning at a lower temperature than propane; I do not believe their conclusions. What made the old style gasoline burners dangerous were their leather seals. I don't think Andrew's burner design is anywhere near that dangerous. Quote Link to comment Share on other sites More sharing options...
Andrew Golabek Posted November 30, 2017 Author Share Posted November 30, 2017 Yes mikey, that is exactly where i got the idea from, was just a bit finicky to setup. I dont know what the temperature is, but it seems to be hot enough for any of my purposes so Im happy. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted November 30, 2017 Share Posted November 30, 2017 I think the reputation of being weak on heat has come from the various people who have tried them to heat home casting furnaces; the problem is that their rather perfect flames have been coming out of brass flame nozzles, which must be kept at a small distance from the equipment openings, to keep such nozzles from melting. When a flame enters that way it induces massive amounts of unneeded secondary air; I believe this is where the underwhelming view of their heating potential springs from. Anyone can see videos of some of the refurbished old-fashioned models running on the web; one look at their flames, and you now weak flames ain't their problem. The new burners have steel flame nozzles; end of problem. That should read "know"... Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 1, 2017 Share Posted December 1, 2017 I still have an old gasoline blow torch in the Connex. It's easy to tell if the leather seals are bad it won't hold pressure. Take it apart, pull the retainer screw and cut a couple more. They were designed for easy maintenance and repair. The nozzle on mine is cast iron and even at full blast or heck any blast in a Kaowool burner port didn't get hot. Neither did the forge. Even using the fuel adjustment screw to lean it out as much as possible it wouldn't make more than dull red in the forge and the flame was always very reducing. These things were designed for plumbing and soldering. Mine won't melt Al in an insulated chamber. Oh I have the lead melter and a number of long handled dipper things for pouring lead it went with. This set of tools dates from the days when the profession and name still matched. Plumbum is Latin for lead and a plumber worked with lead plumbing. It was still being used and installed till what the 60s? It's a lead pipe cinch it's all been replace long ago eh? Oh wait did the local gvt. find something more important to spend that money on? If you've seen the news in the last what 6 months you'll be aware there are still Cities and Counties in AMERICA!!! that still have lead mains and piping up to the house which have to meet code. Unfortunately gvts. get to decide if the law applies to them. Sorry if that was too political for the site Glenn but some things just TICK ME OFF too much to be quiet. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted December 1, 2017 Share Posted December 1, 2017 It's true that professionals who knew what they were doing, safely handled these torches when they were new. However, I believe their present reputation stems from ignorant newbies trying to refurbish ancient piles of junk into serviceable tools, sans experience. There are videos on the web showing perfect flames coming from some of them, besides others that are barely running. I find this to be the same kind of challenge newbies with any other kind of burner face. Quote Link to comment Share on other sites More sharing options...
Frosty Posted December 2, 2017 Share Posted December 2, 2017 I don't encourage anybody to try making the things work again, they're pretty simple but a simple mistake can be pretty catastrophic. You wouldn't want to be holding a burning quart can of pressurized gasoline and discover there was a dried out leather gasket on the valve you didn't notice. Nothing like having burning gasoline or diesel spraying on you to take the fun and romance out of restoring old tools eh? I don't know about others but the one I have operates just like a Coleman stove, you pump it up and light it. It doesn't start burning properly till it warms up. Then it's pressurizing itself and can run away if it's not in proper working condition. I only ever lit mine once and it's been buried in the Connex ever since. Frosty The Lucky. Quote Link to comment Share on other sites More sharing options...
Mikey98118 Posted December 2, 2017 Share Posted December 2, 2017 I have been of divided mind about them for years. The new ones could be very nice for folks in the third world. However, I'm in the highly litigious first world.... Quote Link to comment Share on other sites More sharing options...
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