When I started into gasification it was for one goal: To get off the grid and power my life come hell or high water. It turns out that more than a few people feel the same way. So I went to work on a set of plans and a soon to be released gasifier kit called Woody to help other people achieve that too. Here is a quick introduction video below. Plans are available at woodygasifier.com
Tig welder
Sure you can piece together a gasifier with brazing rod and an acetylene torch, but a few upgrades in tools will really give you a finished product.
Acetylene torches introduce alot of heat into the metal that will result in warpage. A plasma torch will give a faster and more precise cut resulting in less grinding and a better fit. Thermodyne makes a good unit. Or you could send out parts to be laser cut or waterjet cut for the ultimate in precision. A chop saw or a cold saw will make quick work of round bar and pipe.
Stick welders are OK for recycled tanks because of their thick exteriors, but on thinner metal the results won’t be as sharp. Likewise the little 110 volt mig welders should be avoided, they are junk.
A good 250 Amp MIG welder will give you a good result, but for the best results consider a TIG welder. They use little metal which reduces warpage and grinding time. Miller is hands down the best.
Rolling and bending parts for tanks can be muscled or bludgeoned with a hammer, but a sheet metal roller and pan and box brake will ensure a nice fit in 1/4 the time. Grizzly Industrial offers good models. Stay away from their shears though.
Cutting holes for your fittings can be done with a torch, but a hole saw will save you alot of grinding and is a must for dual wall construction.
The table you work on will determine how precise your finished unit will be. Find a flat piece of steel at least 1/2 thick and 4 foot by 4 foot. If you can’t get ahold of that, nail together 3 sheets of high quality 3/4 inch plywood and brace the bottom with 2×4’s.
The quickest way to make threaded holes is to weld on nuts, but beware of damaged threads. A tap and die will give a more professional result.
A drill press, grinder with speedy cut blade, 4″ sander, compass, wrenches, torch, vise, anvil, (optional) and clamps.
What am I forgetting?
