Rocket stove

4” J Tube with vortex

[@slaplapdog]

Love the offset port in the J tube !

[@wes16b]

Love these! Do you think an insulated riser would work as indented on top of your vortex stove? Then back down a barrel. Do you think the riser could be shorter in that design and still have the same amount of draft?

[@foxfish7115]

Yes I think the riser could be shorter because more combustion is taking place right at the base, I will try to test that tomorrow……

[@wes16b]

@foxfish7115 The only reason I could think it wouldn't work as I imagine is if the expansion in the after burner drives the draft more than the riser does. What would you change in your designs (if anything) for higher moisture content wood?

[@foxfish7115]

@@wes16b what stove are we talking about?

[@wes16b]

@@foxfish7115 My apologies for being unclear. I was referring to the double vortex stove with viewing windows. I believe you said it is 4 inch. I would love to see it as a 6 inch system.

[@foxfish7115]

@@wes16b if you look back through my channel you can find a 6” vortex stove, maybe 3 years ago I built one.

[@ing.pagano]

Three questions: 1. What's the size of the side stumbler that makes the vortex? 2. After the experience with the other stove, I would expect more turbulence with square corners, why did you round it out? 3. Does it have any secondary air? Where? How much?

[@foxfish7115]

.1…. Well in that case it was 40% or I left 60% opening. 2…. Always experimenting, square or round both work I can find much difference. 3…. No but the other versions I have built do, I made quite a complex version a few years ago that had lots of adjustable air.

[@ing.pagano]

What would you suggest for an indoor kitchen?

[@foxfish7115]

@@ing.pagano i wish I new my friend, the vortex is a little temperamental as you have found out, I think it just needs a bit more development but that is costly and time consuming! The J tube design built with care and good materials works extremely well but has to have a tall riser. I am trying out a new design J tube right now but not finished as yet……. The batchrocket is a very powerful design but again has a tall riser.

[@ing.pagano]

@@foxfish7115 yes, I've already built a batchbox (version 1), and it works great. But i have a feeling the subsequent designs with smaller riser are too convoluted, that's why I was looking at the simpler vortex stove

[@foxfish7115]

@@ing.pagano Mat walker makes a riser less core but like the other riser less cores it relies on a tall insulated chimney and a bypass to start. I like the J tube for my use, i built an 8” version a few years back it was very powerful and would heat the hot plate red hot in less that ten minutes but I had to bury the core so I could reach the hotplate. I only used it for one season as it was to hot to get close to.

[@lisareed9296]

Impressive work! - been want to do this for years. I’m interested in how you make or source your high temp cement products. I’m in the USA and not easy to get. Thanks!

[@foxfish7115]

Easy to get where I live in Guernsey just off the coast of France, I buy most of my materials from a local store. vermiculite board is a rarity in the states so I am told!

[@fred-san]

cool The Lego game, plastic bricks, but cast iron, to test very easily. But make the molds for the cast iron.... not easy.

[@dreammaster1167]

Finally.. but i am still waiting for your perfect vortex stove 😊 hope u always in great health

[@foxfish7115]

Ha Ha yes well it is a bit warm for messing with fires and I have been building a big dragon!

[@dreammaster1167]

@@foxfish7115 great.. can't wait to watch your next update about it😊

[@rubenalcides]

​@@foxfish7115se puede comprar?

[@rubenalcides]

Como se puede tener o comprar?

[@foxfish7115]

I just make this one in my shed, just for fun not to sell.