# Making my simple fire gasifier **URL:** http://forum.driveonwood.com/t/making-my-simple-fire-gasifier/7477 **Category:** Projects **Created:** [September 3, 2023, 12:35pm UTC](http://forum.driveonwood.com/t/making-my-simple-fire-gasifier/7477 "2023-09-03T12:35:34Z") **Posts on this page:** 1 **Showing post:** 131
### Author: ![BrianAltEnergy](https://avatars.discourse-cdn.com/v2/letter/b/7ba0ec/32.png) [@BrianAltEnergy](http://forum.driveonwood.com/u/BrianAltEnergy) #### Post date: [September 25, 2023, 3:12pm UTC](http://forum.driveonwood.com/t/making-my-simple-fire-gasifier/7477/131 "2023-09-25T15:12:14Z")
Rindert, I’ve been searching for either a down draft gasifier or raw wood gasifier design that wound work with my rather small engines. Did this end up working? > [@Rindert's small engine wood gasifier](https://forum.driveonwood.com/t/rinderts-small-engine-wood-gasifier/6593): > > I’ve been making a wood gasifier for small engines based on Joni’s. Should be good for 300-700cc engines. I tried to run it yesterday. Not very successful. It sort of surges. It produces good gas for a minute or so, then the flare goes out then brown tarry gas, and repeat. I think I need to do more to get water out of it, so hopper tubes. I collected about a teaspoon full of condensate. LOL And it bridged so I have to cut the wood smaller. Specs: 9" diameter, .400" nozzle (just a steel washer)… Most of the charcoal designs I have seen are updraft and that is likely the simplest type but I’d like to make my next build be a down draft. I’d like it to be as small as possible but big enough to get me at least half an hour. I was looking at a mini WK gasifier but it looks like it didn’t work or at least wasn’t finished. --- _[View the full topic](http://forum.driveonwood.com/t/making-my-simple-fire-gasifier/7477)._