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  1. #1
    Join Date
    May 2012
    Location
    Forest grove, Ore USA
    Posts
    195

    Default Homemade oxalic acid vaporizer

    Have any of you folks made your own? What did you do? Will you share pictures or ideas?

  2. #2
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    Hi,
    I made one, that was very inexpensive. I purchased a 12 volt car/travel coffee cup heater that plugs into a cigarette lighter in a car. I also used a 3/4 inch copper pipe end cap.
    I formed the heaters coil around the copper cap. it works good. I also made a measuring scoop out of a 1/2 inch copper end cap and soldered a handle to the end of the cap.

    Still need to make up a simple handle for the Vaporizer.

    You can buy the heater on Ebay.









    Glen

  3. #3
    Join Date
    May 2012
    Location
    Forest grove, Ore USA
    Posts
    195

    Default Re: Homemade oxalic acid vaporizer

    Thank you

  4. #4
    Join Date
    Jul 2013
    Location
    Louisville, KY
    Posts
    2,067

    Default Re: Homemade oxalic acid vaporizer

    Quote Originally Posted by Glen H View Post
    Hi,
    I made one, that was very inexpensive. I purchased a 12 volt car/travel coffee cup heater that plugs into a cigarette lighter in a car. I also used a 3/4 inch copper pipe end cap.
    I formed the heaters coil around the copper cap. it works good. I also made a measuring scoop out of a 1/2 inch copper end cap and soldered a handle to the end of the cap.
    FYI Glen H be careful with hand bent coils. I use work at GE appliances as an engineer, Mg0 is a the heat conducting dieletric filler between the sheath and Nickle-Chrome wire. If the sheath is bent to sharply the MgO is displaced and the heating wire can short to the sheath in a catastrpophic failure. In the industry we call it zippering, the sheath basically zippers open, sparks, mini-eplosion, etc.

    IMO glow plug is much safer route.The heater way very well function just fine for you, just a bit of caution.

  5. #5
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    Thanks for the FYI Burns, much appreciated and good point. I used to work with Metal sheathed heat tracing cables and remember the white compound that kept the element centered and away from the out coating. Trying to remember the name?? Pyro something??
    I have actually started making a two glow plug heater. Got it working, just need some finishing touches, then I'll post some pictures of it.


    Glen
    You Tube bee Channel Zone 5A
    http://www.youtube.com/user/GlenGH

  6. #6
    Join Date
    Jul 2013
    Location
    Louisville, KY
    Posts
    2,067

    Default Re: Homemade oxalic acid vaporizer

    Quote Originally Posted by Glen H View Post
    Thanks for the FYI Burns, much appreciated and good point. I used to work with Metal sheathed heat tracing cables and remember the white compound that kept the element centered and away from the out coating. Trying to remember the name?? Pyro something??
    Yes, exactly the powder keeps the Heated wire (Nickel Chrome) centered within the sheath. The white insulating powder is Magnesium Oxide (MgO), under many different trade names. In the manufacturing process the rods are packed straight and bent into desired shape with cnc benders. There is a minimum bend radius and amount of bends that is considered safe, I don't remember those specs.

    Good Luck!

  7. #7
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    Finished the new vaporizer today and have tested it out a couple of times.
    But I have not tested it in a hive yet.
    I didn't have any 1/2 plate aluminum so I used two sheets of 1/4 inch and one sheet of 1/8
    Drilled the pocket with a hole saw in the one of the 1/4 inch plates and the 1/8 plate.
    Sandwiched the plates together and then milled it to shape. The handle rod is aluminum stock.
    I added a switch too.
    After adding the heat shield on the bottom, I ended up milling the 1/8th off the top to make it slimmer.













    Glen
    You Tube bee Channel Zone 5A
    http://www.youtube.com/user/GlenGH

  8. #8
    Join Date
    Mar 2015
    Location
    Pensacola FL
    Posts
    1

    Default Re: Homemade oxalic acid vaporizer

    Glen, constructed as per your directions and immediately burn the heater out. Used a AC heater which apparently was required to be submerged. How did you get around the submerge requirement. Your example was a DC heater but I would not expect that to make the diff.?? Please advise. Thanks B.B.

  9. #9
    Join Date
    Feb 2012
    Location
    Essex IA USA
    Posts
    39

    Default Re: Homemade oxalic acid vaporizer

    I got a little excited when I saw the 12 volt car/travel coffee cup heater with 3/4" copper pipe cap. But after I got the parts I realized it's too big for my hives. My entrances are 3/8". Same for the bee space below the frames. The heater coils are 3/4" tall and the copper cap is 15/16" tall.

  10. #10
    Join Date
    Oct 2013
    Location
    United States
    Posts
    5

    Default Re: Homemade oxalic acid vaporizer

    An easy to make pan/heat transfer unit for the glow plug, can be made out of a 3/4 inch copper pipe cap and 3/8 copper tubing. The tubing is flattened starting at one end until you have enough to start wrapping it around the pipe cap. keep flattening
    and wrapping until it goes 3/4 of the way around. Do not get ahead of yourself and flatten to much. Using a socket the same size as the cap to form against helps. You should end up with a press fit for the cap with round tubing sticking out. cut the remainder off with just enough off left to insert the glow plug you need to tap the copper ever so slightly to get a tighter fit for the plug. after this has been used a while the copper gets soft then you can tighten it more with pliers. The 3/4 inch cap can be cut down to height with a tubing cutter. Cost new, 2 dollars or less and works very well, and seems to match the times in the posts as far as vaporizing. The only problem may be height, mine finished out at about 5/8 inch which works for me on most of mine, but i just tilt the others back to slide it in. it helps to keep the frame bottoms scraped too.

  11. #11
    Join Date
    Dec 2013
    Location
    Des Moines, Iowa, USA
    Posts
    15

    Default Re: Homemade oxalic acid vaporizer

    Quote Originally Posted by desotohemi55 View Post
    An easy to make pan/heat transfer unit for the glow plug, can be made out of a 3/4 inch copper pipe cap and 3/8 copper tubing. The tubing is flattened starting at one end until you have enough to start wrapping it around the pipe cap. keep flattening
    and wrapping until it goes 3/4 of the way around. Do not get ahead of yourself and flatten to much. Using a socket the same size as the cap to form against helps. You should end up with a press fit for the cap with round tubing sticking out. cut the remainder off with just enough off left to insert the glow plug you need to tap the copper ever so slightly to get a tighter fit for the plug. after this has been used a while the copper gets soft then you can tighten it more with pliers. The 3/4 inch cap can be cut down to height with a tubing cutter. Cost new, 2 dollars or less and works very well, and seems to match the times in the posts as far as vaporizing. The only problem may be height, mine finished out at about 5/8 inch which works for me on most of mine, but i just tilt the others back to slide it in. it helps to keep the frame bottoms scraped too.
    This is a pretty good idea. Can you offer any ideas as to creating a handle? By wrapping the 3/8" tubing around the cap, the holder for the glow plug is created. A hole could be drilled into the cap and a bolt or screw inserted. The threads would run parallel to the 3/8" glow plug holder beside it. A nut threaded down against the outside of the cap would keep it tight and secure. The threads could be screwed/threaded into the end of a shaft to create an long handle.
    Last edited by johnmckeag; 05-21-2015 at 03:33 PM.

  12. #12
    Join Date
    Oct 2013
    Location
    United States
    Posts
    5

    Default Re: Homemade oxalic acid vaporizer

    hold on you are getting to complicated i will send pics and descriptions
    asap

  13. #13
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    Here is the scoop, made with a 1/2 inch copper pipe end cap. this is the correct size measure.






    Glen

  14. #14
    Join Date
    May 2011
    Location
    Catlettsburg, KY, USA
    Posts
    105

    Default Re: Homemade oxalic acid vaporizer

    Here is mine. I machined the tray out of aluminum, stuck a diesel glo-plug in the side and added the metal rod with a chisel handle. Takes about 1 minute to evaporate. I actually made a few more in which I machined the tray to where the glo-plug sticks in the middle and it has a small tray on each side to hold the oxalic, but I don't have a picture of it.....yet


  15. #15
    Join Date
    May 2012
    Location
    Cheyenne, Wyoming, USA
    Posts
    1,690

    Default Re: Homemade oxalic acid vaporizer

    Woow, they all look great. Glen, how do you use yours? Or is that just a measuring spoon? Is there someplace that sells the vaporizers? Where do you get your OA?
    Benjamin Schneider, CEO of Prairie Wind Bee Supply - New & Improved Website! http://prairiewindbeesupply.webs.com/

  16. #16
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    Quote Originally Posted by westernbeekeeper View Post
    Woow, they all look great. Glen, how do you use yours? Or is that just a measuring spoon? Is there someplace that sells the vaporizers? Where do you get your OA?
    The electric heater one is connected to a car battery that I take to the hives and set on the ground
    I have an adaptor cable with alligator clips on one end that goes to the battery and the other end of the cable has an outlet on it that the heater plugs into. The other picture with the wooden handle is the OA measuring scoop that is the correct size measure for the vaporizer.

    You can buy Vaporizers online I believe they are over $100.00.

    The OA in the States can be purchased on line or in a hardware store it goes by the name of wood bleach. Just make sure if you buy wood bleach, that OA is the only ingredient.

    I got mine on Ebay.

    Glen

  17. #17
    Join Date
    May 2012
    Location
    Cheyenne, Wyoming, USA
    Posts
    1,690

    Default Re: Homemade oxalic acid vaporizer

    Oh I see, I didn't realize both post were yours. Yeah, I thought I'd seen the commercial vaporizers for pretty pricey. I am thinking about dribbling OA this fall. What are the mite knockdown stats for OA?
    Benjamin Schneider, CEO of Prairie Wind Bee Supply - New & Improved Website! http://prairiewindbeesupply.webs.com/

  18. #18
    Join Date
    Apr 2013
    Location
    Vancouver, BC, Canada
    Posts
    2,175

    Default Re: Homemade oxalic acid vaporizer

    What is the correct size measure....how much oxalic acid does one use per hive when vaporizing? Have you tested that system to see if the oxalis acid vaporizes?

  19. #19
    Join Date
    Aug 2013
    Location
    Bolton, Ontario, Canada
    Posts
    281

    Default Re: Homemade oxalic acid vaporizer

    The measure is one cap full of crystal roughly. (1/2 inch copper plumbing end cap) . I have used it four times it takes about a minute or two to heat up and vaporize the OA. 1 gram per every deep on the hive EG: two deeps 2 grams two deeps one medium 2.5.....
    I do a test run outside the hive and use a stop watch to monitor how long it takes for the crystals to turn to a liquid, then unplug the heater and see how long it takes for it to totally vaporize.


    Glen

  20. #20
    Join Date
    Mar 2013
    Location
    Taylor County, Georgia, USA
    Posts
    713

    Default Re: Homemade oxalic acid vaporizer

    Quote Originally Posted by Glen H View Post
    I do a test run outside the hive and use a stop watch to monitor how long it takes for the crystals to turn to a liquid, then unplug the heater and see how long it takes for it to totally vaporize.


    Glen
    Is this standard procedure? I'm thinking seriously about switching to OA and need to know exactly how it's done.
    Try it. What could happen?

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