1741 How To Change A Rocket Stove For Indoor Use  

Yeah

yes - for sure

I see I am not the only one who sees this issue. (~_^)-b

it's a way to go - but a little anal - all houses have ventilation - they. have to or just breathing would kill you - by ventilation we are not talking about throwing open all the doors and windows while a hurricane is blowing - ventilation is really pretty gentle stuff - having said that we each go for what we go for and it ends up being a little six or two threes

@@ThinkingandTinkering My 'house' [its doing it way too much charity to call it that] is so drafty it feels like the Vietnam era here. Bugs crawl through holes in the walls and into the interior of the place all the time. I literally heat with an open radiant gas heater inside with no worries about suffocation or carbon monoxide poisoning. There's almost zero retention of heat in this place, as was the case in the house I grew up in, so suffocation is no more of a threat to me, than drowning. [I live at the top of a cliff up a steep slope, near the highest peak in 600 miles, so water can not pool here]

intersting ideas

Flue is to control draft/air flow through your fire and exhaust gases. It would do you zero good above the roofline it need to be at the top of the combustion chamber, bottom of the flue pipe/chimney pipe.

Yeah ok lol

I have a pretty extreme idea but I need to get some two inche tube to try it. Rob you are pretty amazing and if you add a blower on the air intake it would surly help get the burn going harder

The problem with that idea is, you have to feed the thing. Who wants to stay out there in the cold and do that? Lol

@@karlmyers6518 that mild steel wouldn’t take that kind of heat. It’s doubtful that it will last very long even being naturally aspirated as he has it.

You're probably better off heating up a sand battery and bringing that indoors.

glad you liked it

is that not true for any fire?

@@ThinkingandTinkering Point perfectly made. (~_^)-b

@@ThinkingandTinkering It depends on the fuel. Burning 1000g wood creates about 500 - 700g of water which you don´t want to end up inside your chimney 😉

nie one mate cheers

@@ThinkingandTinkering cheers!

I see I am not the only one who sees this issue. (~_^)-b

cheers mate

nice mate - cheers

cheers mate

or do something crazy like heat water and circulate hot water around your house to distribute the heat.

I am not keen mate - I like stuff simple

for sure - cheers mate

I used a 1/2" plate as a cooktop on my build. It got cherry red and warped something awful. My secondary air supply, an L-shaped metal tube to pre-heat the air and the upright tube to put the air up into the burn melted out in 2 weeks of steady use.

Blimey!!!

That’s almost unimaginable. Excellent work.

Mike, thanks for using the correct terminology (burn tube vs rocket stove). This video provider has yet to recognize what makes a rocket stove and the fact that a properly constructed one burns at twice the temperature (as you disclose) that his burn tubes produce. Also, the fuel consumption for a rocket stove is about half of what he describes as his experience. I have twice commented to him that he should read Ianto Evans’ book (inventor of the rocket stove) to better understand the technology.

@@terryharris3393 His model qualifies as a rocket stove. His temperatures would benefit from an insulated burn chamber, of course...but then the steel vaporizes faster. But it's a rocket, for sure...at least in my 15+ years of rocket development.

Your right it really does help. I added them to a secondary burner on a wood stove it increased output at full burn from warm to the hairs curling on my arm. Added 2 inch fins 1-1/2 inch apart.

@@tomtaylor135 could probably also have fins on the inside also, when you increase the heat transfer is there a point where the stove puts our too little heat thru the chimney so the air thru it is not good?

that's a nice idea - cheers mate

cheers mate

you could do that for sure

@@ThinkingandTinkering you've got so many things spinning in my head that once I've got a workshop back i won't know where to start lol

for sure

lol - sooner or later mate - cheers

I think I need to specify what I was talking about. If the top of your box enclosure gets too hot this could become thermo-acoustic like the hot and cold side of a thermo-acoustic engine and making a noise as it vibrates. Chances are that your build there will not as it still is able to force air through the box well enough to overcome the pressure needed to clear the box. Cheers!

cheers mate

You're welcome!

I was wondering if someone was going to mention that! I actually just picked one up this summer and it’s rocketing away on pellets in the basement. Happy so far, little tricky to get used to depending on your draft.

The company that produces the liberator seems to actually understand Ianto Evans’ invention, unlike just about every RU-vid provider on the subject.

are you getting paid by him to mention him all the time? Larry Winiarski, Technical Director of Aprovecho, began developing the rocket stove in 1980 based on a VITA stove, designed by Sam Baldwin, and rediscovered the principles of the systems developed by the Romans in hypocaust heating and cooking systems. A stove was designed to make tortillas based on the principles of the rocket stove and won an Ashden Award in 2005. Aprovecho won the same award in 2006 for their rocket stoves. Aprovecho rocket stoves were sold in Lesotho, Malawi, Uganda, Mozambique, Tanzania and Zambia.

@@ThinkingandTinkering Me? Nope, I wish. Only bought something retail for insurance reasons.

cheers mate

And it may seem dumb now... But the ancients built with rock and Historically people used stones to hold heat might be worth doing when push comes to shove

nice solution - cheers

@@cavelvlan25 My dad built a 24 ton fireplace at our old house, just so it would have a lot of thermal mass. Since our house had next to no insulation [he was terrified of fiberglass, but somewhat rightfully so, and modern plastic insulation had not been made yet] he depended entirely on gargantuan thermal mass, and the working hands of 4 out of 5 young children to keep pumping firewood into it day and night. It also had internal chambers to exchange that heat so that with just a small fan, this massive mountain of masonry kept a 2700 SF house decently warm in northern Arkansas, even in -5 F weather with a sheet metal roof and almost nothing for insulation.

@@hunnybunnysheavymetalmusic6542 sounds like a heck of a stove haha. Fiberglass is not fun or friendly. It is unfortunate almost all modern insulation is sky high right now I would love to insulate my place better.

@@cavelvlan25 2 super cheap kinds of insulation you can get or make: 1: plastic shopping bags [flammable, but insanely cheap, and insanely efficient], 2: aircrete. Insanely efficient, not the easiest or neatest of options, and not nearly as cheap leftover shopping bags. PERSONALLY i would pick aircrete for the following reasons: 1: Fireproof, 2: can have flame retardant(s) added into it, 3: will not rot, 4: finds gaps that even plastic can not find, 5: has some structural value, 6: can have refractory components added to it, 7: can have waterproofing ingredients added to it, and 8: helps make a home slightly more earthquake and tornado resistant because it bonds to all of the properly prepped surfaces and makes the entire structure 'unitized' as a form of crude 'composite'. The only things you need to do to ensure a good pour of aircrete before you pour is to 1, 'adhesion wash' all the areas you wish to bond it to. This can be done most easily with a low pressure spray wand with a swiveling head, inserted from the top or the bottom of any vertical wall, and from any end/side of a horizontal plane such as a floor. This adhesion material is also home made, and contains a mixture of the water soluble 'water glass' with some ultra fine cement powder in a light but self suspending slurry, and 2, follow this by plugging any holes where the aircrete can leak out of when you do to pour it. You may want to let the holes alone a few days before you put in the aircrete though, just to be sure that the preparative coating has time to harden up. This material will partially soak into any porous surface it sticks to [which means it won't stick to very well to romex or PVC, but that might end up being a good thing, as you never know when you may need to service those] and act like a primer, to ensure that the aircrete then has an ideal surface to bond firmly to. Once it hardens, it will greatly increase the total strength and rigidity of the structure. THIS guy, is like THE KING of aircrete!!! I have NEVER EVER seen ANYBODY do as much with aircrete on the face of the earth!

cheers mate

lol- cheers

there is no real reason though I am guessing there are lots of arguments why one is better than another - I just dis agree with that - if I were you and this was my first time would just go for one you candid easily and run sufficiently

​@@ThinkingandTinkering Thank you. I will weld the wood feed on the air tunel - it'll give me more space for an additional "shell" on the chimney. Have a nice day!

you certainly could do something along those lines

If the Rocket stove is built correctly, then it burns so clean, that there is virtually nothing left behind. That said, a lot of "rocket mass heaters" have built cleaning ports into their designs.. "Just in Case". The ones Im talking about, tend to use a long bench that the exhaust pipe runs through... which stores the heat into the benches mass. People put some thick padding on top of it, and can sit or lay down on it.

@@johndough8115 👍

maybe a cleaning port?

just got to keep practicing mate

I agree with your ideas mate - but this is done for folks who have never done anything like this - so I am trying to keep it simple - but I like your idea

awesome

for sure mate

I have wondered about that. I would be interested to know how you make the pellets.

cheers mate

buy a large wood auger bit, place in a suitable tube and there's your feed mechanism

@@richardkern5185 damn... That's half of it. But the clockwork bit is of interest to me. Windup clockwork that takes out the electric or so called gravity fed.

It doesn't have to be anything super complex. Put a mass on a chain and hang it from a gear. Put a ratchet on the gear so the mass drags the gear along, but you can pull the other end of the chain to raise the mass without reversing the gear. Then connect the gear to another one driving the auger with an appropriate gear ratio and you're all set. A bit of experimenting to get the weight and gear ratios just right, but shouldn't be too hard. I imagine you can get most of the parts you need from a bicycle, you'll just need much longer chains.

@@DevinBaillie food for thought. Like the ratchet idea. I suppose the challenge comes from timing and control.

I doubt it - not for the work involved but you could try it if you like

Fire brick wouldn't allow much heat to dissipate into the room, would it? What would be the point of having an indoor fire if nearly every joule of heat is exhausted out the chimney?

this seems to be a bot of a recurring theme mate - I think I will do a video on this as you ask a very good question

If you are using it as a mass heater (long-term, daily), then you would need to build out of something lasting....like cobb, firebrick, etc. If just using for camping (short term, intermittent) then metal seems fine.

I don't know - interesting question though

lol - cheers mate

It’s never too late! A very valuable skill and not that hard to learn.

it's really easy to pick up mate especially these days - those welders can be piked up for a few bucks!

oh - yes it is mate

That would actually be a great idea! Having a water chamber on top of that top plate would help it not to burn out so quickly, which is what it is going to do like it is. It’s way too much heat for that mild steel!

loads mate

cheers mate

for sure

you could certainly go that way mate - but this is really for someone who has never done anything like this before - better not to over complicate I think

I have been pondering this mate

I am sorry you are finding it hard to get hold of mate - we do sell it in the shop here secure.workingink.co.uk/shop/working-ink-materials/activated-carbon-felt/ hope this helps