guns4toys Homemade Wood Gas Stove Configurations
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Mar 182009
12 Responses to “guns4toys Homemade Wood Gas Stove Configurations”
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Awesome job of construction and video !!When you cut the lid off the outer can how does it now become larger so as to as not to slip back into the larger can ? Is it magic? I understand all the rest. Again, awesome job. I have built the “pepsi can” stove and used it for years, looking forward to building and using this new stove. Thanks for your time .
Hi thehikerny, Thanks!
Use a safety can opener on the lid of outer can. The Safety can opener cuts lid off from the outer rim, not from the top. And it cuts the rim in half so that the lid can be replaced and it will fit tightly. You can pick up a manual or electric safety can opener almost anywhere kitchen and housewares can be bought, I’ve even seen them at the Dollar store. Use a regular top cutting can opener for the fire can so it will still have the thick rim around on the top of the can.
Hey vwdad53,
Cut the hole in the outer cans lid a little smaller than the diameter of the inter can. Then cut slits along the edge of that hole, creating a bunch of tabs that will bend down when you shove the inter can through the hole.
Put the lid on the outer can before you push the inter can through the hole. I usually pop the can through the hole by hitting it with the palm of my hand while holding it in place with my other hand. The tabs will bend down and spring load the can in place.
Hi skaterdude1229
Cut the hole in the outer cans lid a little smaller than the diameter of the inter can. Then cut slits along the edge of that hole, creating a bunch of tabs that will bend down when you shove the inter can through the hole.
Put the lid on the outer can before you push the inter can through the hole. I usually pop the can through the hole by hitting it with the palm of my hand while holding it in place with my other hand. The tabs will bend down and spring load the can in place.
I have viewed hundreds of wood gas related videos over the past few weeks and this one is FAR and away the best one for showing how the stoves are made. Thank you for providing such an excellent video on this topic.
I’ve tinkered with my wood gasifier and I’m pleased with it. I put too many holes in the inner bottom can so it burned through fuel way too fast. I’ve replaced that can with an inner can that has smaller and fewer holes to allow the fuel to smolder and slowly release energy. Can’t wait to test it. One question. If this thing fully incinerates stuff is it safe to burn oleander or other poisonous woods? It seems safe theoretically but I don’t want to make the papers finding out I was wrong
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Hey crackahcrackah,
Good luck with testing your gasifier.
As for the oleander, that would be to dangerous to test at home, being on the list of most toxic plants known to man! Large commercial gasifiers for processing city waste would probably completely incinerate the toxins, and the gas scrubbers might remove anything leftover for a clean gas output. But I will not be testing any poisonous woods in my burners.
Thanks for the feedback. I’ll steer clear of it. Too bad because the local utility co. has a ton of mixed wood that it collects at curbside from residential areas. Then it shreds it and keeps it on hand to give out as mulch for free…
BTW what is your take on non-fan operated gasifiers vs fan operated? I was thinking the non-fan ones should be able to operate just as well as long as the proper ratio of holes exist for outside air/pyrolysis section/combustion section…
good!
one question: what if you add some insulation around the outside can, similarly as in some rocket stoves?
Thanks, excellent video, I just built my first wood gas stove following your guidance. I used fire cement to fit inner can into lid, works well.
Do you know some design pronciples, like optimum can Height / Diameter (H/D) ratio? Optimum inner can : outer can proportions?
If you’d use tall, narrow cans, would you get more updraft, like in a chimney? Goes like a fan blown stove, without fan? Any experience?
Your videos are awesome. Inspired, I quickly put one together and was quite surprised to see it work so well.
It is not as neat as yours so I will be making another soon! However, I have a few questions:
1. How do you drill the holes? What bit? My holes are all torn and jagged.
2. How did you get your holes spaced so evenly? I assume you are using a drillpress, yes?
Thanks again!
Joey
Hi borjit, Thanks for commenting.
I do not use any welding.
Cut the hole in the outer cans lid a little smaller than the diameter of the inter can. Then cut slits along the edge of that hole, creating a bunch of tabs that will bend down when you shove the inter can through the hole.
Pop the can through the hole and the tabs will bend down and spring load the can in place.