Rocket stoves with futher additions

i Just dont understand

We are all supposed to be making things more efficient

So you have a rocket stove, why not make it do more???

Why not add copper pipes in the exhaust tube to create warm or hot water

why not put a small turbine like a wind turbine inside the exhaust that uses the thermals
to an alternator to charge a battery banks for lighting

so many additions could be made but all i hear about is warm butts

If you dont understand then it wud be difficult to change yer mind i suppose...

That is why i said elsewhere that you could probably get those things to work if you set yer mind to it.

The reason that i wud not put a turbine in the exhaust is becuz it wud be costly to set up and it wud be inside somewhere that i dont want to have to get to to make adjustments or repairs - the gasses in the exhaust have to get outside so as to NOT gas those whose butts are being warmed.. I dont want to slow those gasses down any more than i have to. (Dont want to have to move that turbine to clean the chimney either.) But once again, if you were determined, you could work around those things and MAKE it work for you. 

Where i am - the wind usually is blowing hard when the heater wud be used...so i cud make a case that by putting the turbine in the exhaust- i was wasting the wind outside...(Not to mention that the burn in the mass heater is not continuous - it is burned fast and hot - then it goes out and radiates.)

The simple RMH ,that Paul has written about, is so efficient in its use of energy that i cant think of anything that is more efficient that is man made.  Almost all man made engines that use energy - waste the heat or use it very inefficiently.... a great deal of the heat from the RMH is used to warm butts and rooms.

Ok Ronnie

so your worried about maintenance and the flow of air, then its simple put the turbine at the end of the exhaust where it can be maintaned and would not effect the airflow

i see there was no mention of the copper pipes that could be used to warm water

As for the costs here in Britain to get the materials that are mentioned unless you were an installer of fire places it would cost about £700 to £1000

Im still going to build one just to prove a small point on what a waste it is just to warm your butts when these could be used to do so much more

These units are only partially eco friendly when they could be fully eco friendly, just because something burns fast and not for a long time dosent mean more couldnt be done
to the unit

So many people see an idea then box themselves into shallow beliefs

Think outside the box  all ideas are there to be improved

No wonder it took man so long to get out of caves

wow thats really combative

I guess it cud be considered that carbon out.... I am agreeing with V that it is possible, but the thing is it dont seem practical to put that turbine in the exhaust... sure it cud make a few volts of energy, but  the wind outside the house cud do more and work nearly year round.

What is the life expectancy of materials inside the exhaust?

The exhaust is slowed by all the turns in the exhaust that are designed to slow the exhaust so that heat can be transferred to the mass.

I didnt cover the copper in the exhaust becuz i'm neutral on it... it may be a good idea worth exploring IF that is a way you want to heat water... i can heat water on the top of the unit without worrying about turning water to steam inside pipes.

If i was to generate electricity with a rocket stove it just wud not be with a turbine in the exhaust.

Viking we are working on it. but it takes time to do things safely and prove a system.

running pipe in a rocket stove is adding thermal mass and you have to size the system to handle it. those of us that are doing the research for the next book are not sitting round with our thumbs up our butts we are trying to make sure we don't kill any one or burn a house down. I have built the only rocket hot water heater that i know of, and it works well but it has to be exactly right or it will blow so its not published yet. I will teach it, however; i refuse to teach it to folks who will not follow safety instructions it can be that dangerous.

if you want to experiment and contribute then document the bloody work so we can proof it. cause till I can reproduce your results its not going in the book. your deadline is January 15th to get me working designs cause that is the day we head to Coquille for the pyromania work shop and i will be setting up my field labs. if your ideas work you will get credit in the book for your work. is that crystal clear enough?

sorry if i sound pissy but i am getting pretty angry about folks who seem to think this stuff is so bloody damn easy; yet wont actually contribute working and reduplicate able designs. we don't make money off the bloody books cause we sell them for the cost of publishing.

Hi Ernie

To produce the plans by the 15th January i cannot do as im throwing all money at solar right now which is working well even in Cloudy Britain

But to produce what i say i will be doing thats for sure im also going to add thermal pipes that run from the Rocket stove into my solar can heater that i made a few weeks ago to boost the system

I dont piss people around, i do what i say im not a critic of peoples work but there is a way forward on the rocket stove that has stood still for such a long time in its own little time zone

If anyone wants to join me in a challege im up for it

what type of psi forms in a sealed system at 140 degrees?

My thought about heating water with a rocket stove was to simply add a water compartment around part of the outside of the barrel, similar to the water reservoirs on wood cook stoves.  The lids on those aren't tight, so there's no worry about steam pressure building up, and you can put a spigot on them so you don't have to dipper the water out.  It would suit me fine, at any rate. 

Kathleen

thats a good idea. same as the idea of putting it above the barrel. theres lots of ways to do it. some better than others. i was tasked to desighn one that would give me hot water fast and storage. so i built one that does this.

viking1

stood still? its been three years since the last book, in that book we addressed 500 problems folks had with use of the stoves. the basic design in the book will if you follow the directions heat you and your home with as few problems as possible save those you create your self.

We have a new batch of problems that will be addressed in the next book and a bunch of tweaks to look at for the basic stove. then we got a few new designs to follow for specialty stoves. kilns, water heaters, smelters, green house heaters, various pocket rockets, etc. there are only so many of us and we only have so much time. We depend on the folks interested to push the boundaries and we then proof the concept.  we also make the decision of whats safe and whats not. the folks looking at the safety end are pyromaniacs to a person and we dont say something is unsafe very easy.

something for folks to think on. None of the folks developing these stoves is making a living on them. Erica and I teach workshops but those are far between; we have to find other employment to make the few bills we have.

If i had a way to do it i would work on rocket stoves all day every day. (well almost cause while i love rocket stoves, my passion is maritime. but you get the picture) Donkey and Lesley, i am sure would love it as well. Ianto is trying to retire and we are happy for that; Kiko has his ovens, Berhardt is a teacher. these are the core folks on rocket stoves and all of them have to work for a living and play when they can. Ianto set it up so YOU are the researchers cause no one would fund the research without strings. while the core does research we cant follow all the leads that what everyone else is for. we depend on folks having ideas and then taking a look at them.

its a jumble but its a few thoughts on my head.