Enjoyed your videos immensely. Cheers from Tennessee.
@LozHarrop
9 жыл бұрын
hunterknife49 Thanks Bud from rainy England.
@LozHarrop
9 жыл бұрын
A little xmas present for the workshop. Merry christmas and a great new year to everyone.
@kads1725
9 жыл бұрын
that is an amazing rocket heater, I am going to make something similar with an old gas tank that I have laying around...thanks for sharing...great work.
@1timby
9 жыл бұрын
Wow impressive. Just in time for Christmas. Can't wait to see it with ll the bells & whistles. Also want to see how it performs...LOL
@LozHarrop
9 жыл бұрын
1timby Thanks mate, will let you know in a few days.
@BenJamin-zw2pv
9 жыл бұрын
That is the most amazing rocket stove design. Thanks for bring us along. Just awesome.
@LozHarrop
9 жыл бұрын
Ben Jamin Cheers Ben, yea its a good stove worth the effort for sure.
@godislove201
6 жыл бұрын
It's the best one I've seen so far. This is definitely be the one I will build... thanks brother.
@LozHarrop
6 жыл бұрын
Thanks bud, will be giving the stove a clean out and service very soon to get ready for winter, couple of issues to sort out, just fatigue on some metal strips i added to the riser entrance 2 years ago, they burnt out so will replace them and i will maybe re line the firebox too. Cheers.
@anthonycolbourne4206
9 жыл бұрын
I especially like the routing of the inlet air around fire box, keeps the smoke in control very well and how well the draft control works. Seems to work superbly. I would call it a hopper box rocket stove. Curious to see how well the concrete holds up too.
@LozHarrop
9 жыл бұрын
Anthony Colbourne Thanks Anthony, I will be interested to see how its doing too, I might remove the top plate tomorrow and have a look inside to see how everything is holding up, its been pumping out alot of heat now for the past few weeks so any damage should show up.
@billrichardson2565
9 жыл бұрын
Thank you so much for sharing your build and your knowledge with us. your casting was particularly of interest to me. top man!
@LozHarrop
9 жыл бұрын
Bill Richardson Thanks alot Bill glad I could help you.
@CraigArndt
9 жыл бұрын
Heck of a design. Great job.
@LozHarrop
9 жыл бұрын
Craig Arndt Cheers Craig.
@rockrebell
8 жыл бұрын
Very professional look. I can easily imagine this stove being displayed and sold at a stove vendor :) The idea of casting the riser got me hooked up, combined with the concept of your hybrid rocket stove/gasifier. I haven´t build much of this stuff yet, just playing around with cans and barrels that are mostly gasifiers. An idea that occured to me was to have the heat flow around the fuel chamber to enforce gasification, but I never had an idea how to start. Casting with firecement and perlite seems to be a solution :) Thanks for sharing your work!
@LozHarrop
8 жыл бұрын
Thanks for the comment, yes its very addictive when you start working on efficiency and heat output you cant beat observation and tinkering because it throws up worthwhile unexpected results. Cheers.
@BertHeideveld
9 жыл бұрын
I love the stove, thanks for the video.
@col2959
5 жыл бұрын
I've watched em all and this baby is número uno. Rocket man look at the draw. Don't worry about the seal. You can't help ya self can ya olboy. Got no quit in ya
@TheEmptynester
9 жыл бұрын
That works very well. What a wonderful stove you have built!
@LozHarrop
9 жыл бұрын
TheEmptynester Thankyou and all the best to you.
@TheEmptynester
9 жыл бұрын
You too. Merry Christmas. :) E
@stevewalker4914
6 жыл бұрын
Looks like a well thought out plan,,Thank you for sharing
@carolsloanes381
7 жыл бұрын
Lovely job, a nice clean burn, thanks for sharing a very inspiring project.
@LozHarrop
7 жыл бұрын
Thank you
@joebis9658
9 жыл бұрын
wow amazing the evolutionary progress of design has improved from the first stove to this one I know a lot! of thinking went into its creation lots and lots of fabrication to get it all to fit together lots of hard work mate that's an impressive stove thanks mate for including us all on it I always love the proses of it Thanks again mate
@LozHarrop
9 жыл бұрын
Joe Bis Thanks so much Joe, bit of an evolution this one so far I am really liking it...throwing out plenty of heat and I would compare this to the old one like the tortoise and the hare...Will explain that when I post the vid of my findings in a week. Cheers.
@edsoars
8 жыл бұрын
A brilliant design! It's the Formula One race car of rocket stove heaters: it shows us where the concepts could be taken. For me, the great take-away is the cast firebox-heat riser: superb! most people don't have the tools or skills for fabricating the heat exchanger.
@LozHarrop
8 жыл бұрын
+Ed Berg Thanks Ed, hope it gave you some inspiration, these things can always be improved.
@kevinburgess6112
5 жыл бұрын
very nice work. i enjoy your videos as well cheers
@watledue
9 жыл бұрын
Great work!
@LozHarrop
9 жыл бұрын
watledue cheers mate
@TimTools99
7 жыл бұрын
I have a wood furnace in the basement of my big house and have burned hundreds of cords of wood in the last 40 years. In fact, I am cutting and splitting wood now and filling the basement (an annual event.) I have heard of the rocket stove but never saw one until I watched your video. New wood stoves in the USA are now required to have some sort of high efficiency re-burn system. My neighbor has one of these new stoves. You have got me thinking ..... I'm getting too old to cut all this damned firewood every year! Thanks for sharing what you have learned.
@LozHarrop
7 жыл бұрын
No problem Tim, well worth the effort of building one, would cut your wood harvesting in half if not more.
@eFSpiderGuy
9 жыл бұрын
Congratulation you made a very efficient and good looking stove.
@spanky522
9 жыл бұрын
Thanks for all the info on the riser build. I have the same problem with the steel riser starting to disintegrate and need to build one like you did with refractory cement. Merry Christmas my friend!
@LozHarrop
9 жыл бұрын
Painter D Thanks mate so far its holding up really well see my video tomorrow on it when I take the stove apart after burning it for the last few days. Cheers.
@baetis
9 жыл бұрын
awesome design and not surprisingly something you would have come up with.. Since my videos on the stove I copied of your original stove.. I have cut off the old firebox and built a box measuring 24" deep, 24" high and 17" wide.. I put a cast iron door on the front that had built in controls and am happy to report the stove is putting out quite possibly 3 times the heat as before and I am able to bank it and throttle it down to around 450F and have it burn throughout the night.. I got up this morning to a hot bed of coals and tossed in a couple pieces of wood and it took right off... I did do an inspection on the riser tube while I had the box off and was glad to see the riser was in fine shape.. I used some pretty thick stainless stell when I originally built the stove,, so my hope is it lasts a good long while.. I am going to do a short video showing the new firebox and will try and get it on here soon... again,,, beautiful piece of work ,,, Happy New Year.
@LozHarrop
9 жыл бұрын
baetis0426 Good stuff mate and glad you have improved the firebox, update your video sometime so we can take a look. All the best....Cheers.
@yodamann5193
9 жыл бұрын
Looking good, drafting well, Cheers Happy Holidays again .
@MusherDeeds
9 жыл бұрын
Awesome design. Thank you for sharing it here. I joned you forum and will be posting about my build, probably this summer. Great job!
@LozHarrop
9 жыл бұрын
Musher Deeds look forward to it mate.
@antoniodicappo403
7 жыл бұрын
Bloody marvelous job, what a beauty!
@LozHarrop
7 жыл бұрын
Thanks Glad you like
@davinzitterkopf6397
9 жыл бұрын
Great job, very inspiring. Its gotta be a great feeling to be able to create something like that and be able to reap the benefits. Merry Christmas.
@LozHarrop
9 жыл бұрын
***** thanks Davin, been a learning curve to finally fabricate what I want in a space heater
@1billyknorr
9 жыл бұрын
Great job. Best I've seen so far
@LozHarrop
9 жыл бұрын
BackRoom Labs Thanks for the compliment mate.
@stevie12
9 жыл бұрын
fab job but its your pigeons and knifes that do it for me ,merrychristmas you yours. stevie
@LozHarrop
9 жыл бұрын
stevie 1 Thanks Stevie well you might like the new bird vid i am putting up now, they hardly been out the last month but they are doing good. Cheers.
@paulshawp
9 жыл бұрын
Great lovely job good vids thanks
@LozHarrop
9 жыл бұрын
paulshawp Thankyou Paul,
@bigoldgrizzly
3 жыл бұрын
nice one owd lad ! If you weld on vertical box sections up the sides of the heat exchanger [rather than 'fins'], you will get the benefit of the chimney effect as cool air enters the bottom and rises to leave as hot air at the top. You will get a greater airflow and heat transfer doing this than would occur naturally from air rising past the flat outside walls of the exchanger. This simple addition worked very well for me on my stove and is great for transferring more heat into the air, and for reducing the flue gas temperature [less wasted heat vented out. If you have particular 'hot spots' on the exchanger, you can put more tubes in this area to help cool it. Take this one step further and the tubes can be linked at the bottom to allow airflow from a small fan to pass through all the tubes but at a greater rate, but that is probably overcomplicating things, and fans cost money to run....... all of 30p a day .... extortionate ;
@LozHarrop
3 жыл бұрын
yes I agree there mate, i have 2 pieces of box section running vertically inside that circulate the heat through open ends and they really pump it out. Cheers
@onebigkahuna69
8 жыл бұрын
NICE!!! the suction on paper was really impressive.I think that you are very good at this.The build looks very well and even professional compared to other I've seen on KZitem.
@LozHarrop
8 жыл бұрын
+onebigkahuna69 Thank you, it helps the suction when there is a bit of wind which is most of the time here ! On flat calm days I need to push paper into the riser to get the suction going. Cheers.
@onebigkahuna69
8 жыл бұрын
***** If its windy there maybe you need to do some windturbine experiments? Hell,maybe you have been doing that and i haven't seen that video.yet lol
@LozHarrop
8 жыл бұрын
+onebigkahuna69 I was actually thinking about one but there are a couple along the road on an industrial unit and wow the noise they make is incredible, that would drive me nuts lol.
@SilverFalcon460
9 жыл бұрын
Great job! look forward to updates. Thx.
@LozHarrop
9 жыл бұрын
Lone Wolfe Thankyou.
@spanky522
9 жыл бұрын
I'm re-building mine now with the original pellet feed system (4") and making it able to be unbolted and making a firebox similar to yours, so I can burn cord wood if I choose to. Then I'm using sheet metal for a 2" heat jacket round the stove with a squirrel cage fan to blow the heat where's it's needed. PD
@Grizz270
8 жыл бұрын
+Painter D do you have a vidio on that ? , i curently heat with wood my wife will out live me and i need to switch over to an easier source of heat for her , if you have a vidio or a web sight link i could look at would be great
@stoddy2005
9 жыл бұрын
top video bud, getting lots of ideas from you to heat my workshop
@LozHarrop
9 жыл бұрын
James Stoddart Many thanks James.
@gee3883
9 жыл бұрын
Thats bloody brilliant ,ya clever bugger
@LozHarrop
9 жыл бұрын
+Graham Wright Cheers Mate, shes a good stove.
@TheTitian69
9 жыл бұрын
Very nice much respect.
@LozHarrop
9 жыл бұрын
Van Powell cheers Van.
@babaluto
9 жыл бұрын
Fantastic build mate! On my second one for the house. Will try the cast riser tube next season. All the best!
@LozHarrop
9 жыл бұрын
Al Ryzy thanks Al, ill be casting another one for this as well make a few changes to see what differences I can make if any.Cheers.
@advancednutritioninc908
4 жыл бұрын
Beautiful Workmanship!! Good Design!! Liked !! Subbed !!
@FinsRacksOutdoors
9 жыл бұрын
awesome. as. always.
@LozHarrop
9 жыл бұрын
Bigwannas cheers mate, have a good crimbo.
@Red_Proton
9 жыл бұрын
Fantastic stove! I really like all the little improvements you made for your stove. I think the firebox with the glass window and dual air intakes (with preheater) is the best part. What kind of glass is that? I'd like to build a rocket stove with a single-stack, vertical fuel magazine (about 30 inches tall) that will burn/gassify split-logs 12 - 14 inches long and up to 5 inches across. I don't know how feasible that'd be. But I think it'd work with super-heated air entering the fuel magazine at the top, just as you have done.
@LozHarrop
9 жыл бұрын
Norman Kellison Thanks Norman, the glass is ceramic heat resistant from a supplier. Your idea should work ok bear in mind you would have to heat the burn chamber with sticks and smaller pieces before the larger logs would gas.
@bigtrev8xl
5 жыл бұрын
Bloody superb :)
@JaysLoft
9 жыл бұрын
Very nice great job loz mate
@LozHarrop
9 жыл бұрын
Jason Bentley Cheers Jason.
@JaysLoft
9 жыл бұрын
Your welcome mate
@ronweber1402
Жыл бұрын
The only beef I have is the preheating of the intake air. You want your air charge coming into the combustion chamber as cold as possible. Cold air is dense air and dense air has more oxygen. That is why cars have intercoolers to cool down the intake air behind the turbocharger, to get a denser air charge to get better combustion.
@cheyenneweaver1502
9 жыл бұрын
New to your sight ppotty1, but love your work! Well done! Merry Christmas
@LozHarrop
9 жыл бұрын
Cheyenne Weaver Thanks for the nice words merry christmas to you
@WHOSCOMINTOMEETUS
9 жыл бұрын
thx for the share of your hard work .hope you have a good crimbo
@LozHarrop
9 жыл бұрын
WHOSCOMINTOMEETUS Thankyou very much all the best to you.
@nasuper100
9 жыл бұрын
very good hard work
@fahermsen
5 жыл бұрын
What is the top heat celsius on this stove or any stove for that mather. I like to know for which firebrick i need to buy. And i must say it looks very nice. Personaly i like to heat an central heating radiator in my livingroom from my stove that would be standing in my backyard for the future so i have to figure out what i must do to collect the heat in such a manner it gets the most out of it with as little bit of wood as possible.
@anthonywhitehouse2295
9 жыл бұрын
how much has it cost in steel ? great videos by the way loved watching the build of this and the others.
@kbbacon
9 жыл бұрын
Very Impressive! Merry Christmas and Happy New Year!!
@LozHarrop
9 жыл бұрын
kbbacon Thanks Kevin best stove to date by far. all the best.
@richardwallinger1683
4 жыл бұрын
the air getting in is an excellent secondary burn .. it needs some thought on how to utilise that positively .
@slipscreenD716947
8 жыл бұрын
Extremely smart human
@LozHarrop
8 жыл бұрын
+Kenny C thanks Kenny
@fred-san
9 жыл бұрын
Air box good I suppose (as motor engine). Good winter, nice.
@LozHarrop
9 жыл бұрын
fred san thankyou.
@tomschmitt8561
6 жыл бұрын
Wow this stove sucks! And I mean that in the best way possible. It started drafting the smoke into the belly immediately and never looked back. Nice job, great design. Thanks for sharing!!
@LozHarrop
6 жыл бұрын
No problem Tom
@djyul
8 жыл бұрын
British ingenuity at its best!! I suscribed! What is the fire box to riser dia ratio? ie,if i have steel box 100x 100mm for fire box,what dia riser would i need?and height? Air intake,obviously it shouldnt be smaller than riser,should it be larger,volume/dia wise? Secondary air,when i was a kid(long time ago)dad had a stove in the workshop,it had vent on the riser/chimmney pipe and if you open this,stove would roar and glow red hot ,so would the riser.Is this the same principle,adding oxygen to un burnt gasses(smoke)to get it to burn? I have a small workshop and am chomping at the bit to start building.Will try and post results.I am going to start small to get the hang of it ,but want to add a water heat exchanger to heat the house,and supply hot water. Great vid,i know this is 2014,any progression,problems with this build? How did the riser hold up?
@LozHarrop
8 жыл бұрын
Hi Mate, thanks for the sub, conventional rocket stoves work on the J tube principle so everything is the same diameter , you burn in the upturn of the J the fuel causes a restriction so air is pulled in fast in the spaces between the fuel. When you use a bigger firebox to replace the upturn J its going to burn out of the firebox if we dont put a lid on it and feed the air in over the fuel by some means. secondary air is fed directly into the riser in order to burn unburnt gasses and to partially feed the burn in the riser when the air is restricted over the fuel. Using that method you can turn the rocket into a semi gassifier which is very efficient and very hot. Ive had no problems at all with this stove its as good as the day it was fitted, I changed the flue as you might have seen.
@djyul
8 жыл бұрын
***** Yes i saw,paper thin! Have posted you on your update for help with plans etc.I am in hungary now,ex-pat,and it gets down to -24C at times,coldest i have had is -16C.Want to fit a water heat exchanger,did you get any further with that?Want it for hot water and radiators. Thank for the reply : )
@horaciomallokardec5467
5 жыл бұрын
have you considered installed a flat plate fan on the top of the heat enchanger, to distribute hot air around the room, like a Hunsaker vortex heat diffuser used in drum smokers?? I have tried to attach a pic but it wont let me. Thanks for sharing your knowledge.
@robertaitken9012
9 жыл бұрын
MARVELOUS.NO KETTLE OR TEA POT ON THE TOP ? THANKS FOR THE EDUCATION.
@LozHarrop
9 жыл бұрын
ROBERT AITKEN Dont worry Robert when i get working in there the kettle will be simmering away on top. All the best.
@shawng5799
7 жыл бұрын
That is really well done! I'm an engineer and I've watched loads of these videos lately and I was very impressed with your video of the vortex. BUT :) i watched you set alight the paper and it instantly roared just like the good old open fires of my youth when you cover with a newspaper to restrict airflow. Which has made me wonder if all the trouble of insulating is necessary or even if it works at all. I am beginning to think its all down to the design and the vortex. I wonder if instead of insulating we should be pulling all the heat out with the heat exchanger by adding fins much like a motorcycle cylinder head.
@LozHarrop
7 жыл бұрын
The draw on the fire is mostly down to the wind outside mate, if there is no wind you get slow air movement through the system until you heat the riser then it creates its own draught and pull. Firebox insulation greatly increases the heat production I have found. And yes fins are a good idea
@alexanderfalk8337
7 жыл бұрын
much xmas for you mpotty...your videos are beiing watched and still interresting... I like this very much indeed...have to get a 6mm sheetmatal now.... thank you and best wishes to uk from Hunsrück... SANDER
@LozHarrop
7 жыл бұрын
Thank you and all the best friend.
@michbushi
9 жыл бұрын
Aaaaargh! Pouring white spirit on just-extinguished flames! Directly from the bottle! Hope your emergency room isn't too far away, my man! NEVER do this from the bottle, too risky (if the fire jumps in, it can even explode, on rare occasions). Pour a tiny bit into an OPEN container (a cup, or the little plastic ones that they use for sauces in takeaways), and only then, pour it onto the wood.
@michbushi
9 жыл бұрын
...the stove is super cool, though. Sorry for starting with being an a-hole first, it is just that in this summer, a friend of mine send himself to a hospital, with burnt face, for exactly this reason. You would not believe, it was his wedding day, and he was rushing himself to get his solid-fuel boiler started... must be one of the worst cancelled wedding day outcomes I've heard of. Then I saw you playing with white spirit the same way, and I felt the immediate danger and urge to warn you. So there it come, maybe unwanted advice from me. ButI love your channel, and the stove runs great. Congrats!
@shamasi1968
9 жыл бұрын
My husband did that once when I was at work, normally I built the fire, he ended up wrapped like a mummy for 6 weeks and me having to abrade his face every other day or so..
@LozHarrop
9 жыл бұрын
michbushi Thanks for the advice but im well used to dealing with fire and flammable liquids, glad you enjoy the vids have a great christmas.
@Sho81
8 жыл бұрын
Just wondering if you made the door opening slightly smaller and had more air draw into the stove would you need the door? I have seen a lot of stove designs where there is no door at all and pretty much lets no smoke out into the room. And wondering about its fuel consumption as well. Sorry for the questions but I am trying to study up on this subject because I would love to build something like this for my shop when I have the time, energy, and spare money.
@whitehat55
8 жыл бұрын
If there's no door you can't control the amount of air entering the combustion chamber. It would burn wide open the whole time and suck heated air out of the shop.
@Sho81
8 жыл бұрын
whitehat55 Good point.
@LozHarrop
8 жыл бұрын
+Sho81 Sorry I missed your comment ? But whitehat55 pretty much answered it. without a door you cant control the burn and a bigger firebox even with a small opening can burn out of the open hole if it is on the top such as this. cheers.
@stevenk1965
9 жыл бұрын
Awesome stove, Very well thought out and built. I heat my house, small shop and weekend cabin with wood. As you can imagine I go through a lot of wood in a year lol. I've been watching videos on rocket mass heaters for a long time now trying to decide what kind would be best for me. A stove like this would be great for the house and shop. But I think I'll go with a more traditional looking one for the cabin. Thanks for sharing the whole build with us it's really motivated me to build something myself. Now you have had it running for a little while is there anything you wish you had done differently? Also how much does the stove weigh and how long does it stay hot after the fire burns out? ATB, Steve...
@LozHarrop
9 жыл бұрын
stevenk1965 Cheers steven yea in my follow up video tomorrow I say what I would change but only to improve things further its very good as it is. I cant really tell you the weight but I estimate around 230 -260 lbs. The stove continues to give off heat for about 5 hours after the fire has gone out, this is coming from the riser and the insulation in the firebox. Cheers.
@valramos4852
9 жыл бұрын
Thanks for sharing. You mentioned that you were adding fire brick? Were will you be installing it?
@LozHarrop
9 жыл бұрын
Val Ramos Hi Val and thanks, I spent an hour today lining the firebox with some fireboard to protect the metal and increase the temps inside. I will be casting a lining for it in refractory when I get some. Cheers.
@caotropheus
9 жыл бұрын
Greetings ppotty. Nice stove. Are you planning to use a chimney dumper?
@LozHarrop
9 жыл бұрын
caotropheus Thankyou mate, I had thought about it and might just do that once i finally get the stove finished
@LedlightworldCoUkled
8 жыл бұрын
Hi Potty, have you considered installed a flat plate fan on the top of the heat enchanger, to distribute hot air around the room, like a Hunsaker vortex heat diffuser used in drum smokers?? I have tried to attach a pic but it wont let me. Thanks for sharing your knowledge. Rgds Gareth
@LozHarrop
8 жыл бұрын
+LED lightworld Hi LED thanks i searched images to see what you mean and yes it would probably help to circulate the heat around the shop although a self powered fan would be a fairly weak effect on air movement. cheers.
@jackinthegreen1000
9 жыл бұрын
Hi, loving the stove and have been eagerly waiting for the next instalment. I'm curious as to what the thoughts behind you building it are. Obviously you need to heat your workshop, but the cost of materials alone in making it, must be off set against a more traditional type arrangement. Is it worth it if the last one only lasts 2 years? Not that I care mind you, I'm loving the design and looking forward to the next project!
@LozHarrop
9 жыл бұрын
Duncan Noel Hi Duncan, and thanks. I could have easily repaired the last stove in a couple of hours but just wanted to build a new one combining things I have learned about them. The big reason why they win out over traditional stoves is the amount of fuel they use which is tiny in comparison, another is the gasses coming from the flue are cleaner with no smoke, sparks or smell vital when my chimney is 20 feet from neighbours houses. I used to heat the shop with Gas costing around £60 every 2-3 weeks but it made the shop damp and i really disliked the smell it also gives off monoxide so you need ventilation which brings the cold air in, I built a normal stove which solved some problems but created smoke and sparks venting over neighbours houses and gardens, I was also burning more wood than I was using to heat the house! Thats what led me into rocket stoves and believe me the shop has never been warmer and drier on so little fuel. Cheers.
@jackinthegreen1000
9 жыл бұрын
***** thanks mate, questions answered! Next one :-) is, what happened to the forge idea?
@LozHarrop
9 жыл бұрын
ahh the forge ....It was just a collective brainstorming on the forum to see if it could be done, guys just throwing ideas out. I think it could be done but it would be difficult to manage the fire and the temp control for precise forging. maybe ok for blacksmithing but doubt it will better a gas or coke forge. Cheers.
@kelhawk1
8 жыл бұрын
The authors of the excellent booklet "Designing Improved Wood Burning Heating Stoves" contend: "The power level of the stove should be set by the wood loading rate, not the airflow. When users try to control the power of the stove by shutting off air flow to the fire they can send heavy plumes of smoke out of the chimney." Does this stove tend to smoke when you throttle it down by decreasing incoming air? If not, does the secondary air help with that?
@LozHarrop
8 жыл бұрын
+kelhawk1 This stove is both a rocket stove which needs good air flow, but also a gassifier which does not need the same amount of air flow. the firebox heats the wood and produces gas which is burned in the riser with the sec air only a small amount of air is actually passing over the fuel. A conventional wood stove would smoke badly closing off the air.
@learnsomethinguseful
9 жыл бұрын
Looks great,do you think you could cook on top of that thing? i'am sure were gonna find out soon! Merry Christmas...
@LozHarrop
9 жыл бұрын
learnsomethinguseful Thank you... oh yes you could cook on it for sure probably fit around 4 pans on there too Merry christmas to you...cheers.
@Moronicsmurf
9 жыл бұрын
My workshop has plaster walls (dry wall?) and behind that it would be wood and insulation.. would a rocket stove get to hot or is the outer shell in the heat exchanger "touchable" ?
@LozHarrop
9 жыл бұрын
Moronicsmurf the top of the exchanger gets the hottest the sides less, a distance of 6 inch from a plasterboard wall should be ok but you could render some sand and cement directly behind the exchanger onto the wall or shield the wall with metal plate or a fire board if you were worried about it. from a distance of 6 inch i doubt an exchanger would be able to combust plaster board anyway. Cheers.
@michbushi
9 жыл бұрын
Question on lower temp burn cycles: isn't it kind of against the whole idea of a rocket stove, i.e.; burn it quickly at high temps, completely, in oxygen rich atmosphere, with clean exhaust? When you run it cooler, w/restricted intake, does it not produce smoke/sod, doesn't it clog the chimney? Or is the secondary air taking care of that? Do you need to adjust the secondary air much? Sorry for the avalanche of questions, but you seem to have a lot of experience, and clearly you do know your stuff, so I better ask twice, than redo once ;-)
@LozHarrop
9 жыл бұрын
michbushi Your right on the first part that is the idea of a rocket stove and I use that when lighting this to heat the riser and get it up to temp for clean combustion, while this happens the firebox is also heating up in turn pre-heating the air supply. Its gets to a point in the cycle where the firebox and the air supply are so hot that the stove kind of changes into a gasifier. That big intake of air rushing through is no longer needed for complete combustion because it is now happening inside the firebox mostly, any unburnt gas is burned inside the riser with the sec air coming in. Of course you can only burn like this if you keep feeding wood into the firebox as after a while the temps slowly drop as the fuel is used. It does not take long to start gassing the wood again once the system is hot then the primary air can be reduced again. I just leave the sec air open fully when gassing happens and close it when heating the riser as the sec air is not really needed at that point on this stove. It does help on some rocket systems though it just depends on the build and there are alot of examples that work better with it open during the burn. Hope that helps. Cheers.
@michbushi
9 жыл бұрын
***** that is really cool, man! I wonder, if it would make sense, to add some automation to the air intakes, using actuators, controlled by automotive O2 (lambda) sensor. Probably over-engineering, but it would make the whole process idiot-proof, and would increase the cool factor tenfold, lol!
@whizspin6403
8 жыл бұрын
patent, production....:)
@donaldosborn9989
3 жыл бұрын
Does anyone else see the face in the fire
@MRnounoursSQ
9 жыл бұрын
nice stove but for your old stove all the video i saw whit stove whit heat riser made whit metal dosent last att all . too much heat metal cant stand that much heat.hope your new heat riser stand that heat im planing to make one my self all ready have one whit metal after 10 burn have to change the pipe the pipe just desintegrate man.im looking for somebody who make ceramic to make the heat riser this way cose ceramic will stand more heat.some of you will say use bricks . i prefer the round shape for the tornado efect inside the rising tube. but nice stove ;)
@LozHarrop
9 жыл бұрын
MRnounoursSQ Cheers mate yea a ceramic riser would be nice if you can find something at the right price.
@MRnounoursSQ
9 жыл бұрын
***** first gone try one like yours a litle cheaper then will try ceramic have a frend who have a ceramic stove just nead to bild a mold will post a vid as soon its bild. Merry christmas
@LozHarrop
9 жыл бұрын
anthony the steel cost around £200...cheers.
@semajekrad6922
9 жыл бұрын
Hi ppotty1 I love the concept with the cast riser n ave picked up a couple of your ideas and am running with em have developed a good relationship with the metal recycling yard am getting steel for 29p a kg
@LozHarrop
9 жыл бұрын
James Darke Cheers mate, always good to find a source for the steel, its so costly now.
@BooKittyRadley
8 жыл бұрын
I have an uninsulated metal building with a concrete floor. Total square feet is 1200 (111 square meters). I wonder if this stove will be able to heat it on a day that is 0C, bringing the temp up to ~20C and keeping it there as long as its fed? How many square meters is your stove in this video heating?
@LozHarrop
8 жыл бұрын
I think for a building like that you would need some kind of blown heat to circulate around the place, you have 3 times the space i have to heat, you need a big exchanger with a fan behind I doubt my stove would do the job but its difficult to calculate. you will struggle keeping the temp up without insulation though.
@darrenking816
8 жыл бұрын
Hi there, what thickness of mild steel are you using? It looks to be about 6mm for the heat exchanger and firebox but internals perhaps 3mm e.g. internal sides of firebox adjacent to firebricks? Any advice. Thanks
@LozHarrop
8 жыл бұрын
+Darren King Hi Darren, the sides of the exchanger are 3mm exchanger top is 6mm and all of the firebox is 6mm apart from the outer covering on the sides which is 3mm
@darrenking816
8 жыл бұрын
+ppotty1 thanks for the information. Finally can you give me you view on the secondary air feature? I am not sure on the purpose given the amount of draw you get from the primary air which seems more than adequate. Thanks
@zzifneb
8 жыл бұрын
hello ppotty we built a rocket stove from your dimentions but with a side door. after some time we discover that the your rocket stove have many smart thinks we didnt see at first. so if you can answer some questions? the rising tube is relativly short. do you have sucktion allso in days there is no wind? do you have second fire(combust ..) . and the most important for us to know - does the air pipe allways flows to the rocket stove and not the opisite side? what make it flow to the oven and not from the oven?
@LozHarrop
8 жыл бұрын
+gal shlomo sela Hi Gal, the suction will not be as good on days when there is no wind or when it is cold and raining you will have to put burning paper into the bottom of the riser to start the riser pulling air up...so heat it first and put thin pieces of wood inside to get it hot inside, the air will then pull up the riser and not come out of the firebox, if the smoke and flames come out of the firebox the air supply will reverse and come from down the chimney so the whole stove works in reverse. Hope that helps.
@zzifneb
8 жыл бұрын
+ppotty1 thank you
@btkling
9 жыл бұрын
Hey there. Big fan of you, tryin2lhard, ZeroFossilFuel, and GoodChiii. Question: On your combined exhaust / inlet in the back, where does that inlet air go to? I thought most of the air came from the front firebox and then a small hole you drilled into the side of the ceramic riser, kind of between the firebox and the riser? Just a little confused as to where that rear inlet air goes and what purpose it has. Thanks, keep posting videos.
@LozHarrop
9 жыл бұрын
Brandon Kling hi Brandon, that air inlet at the rear runs underneath the whole stove to the front then up the insides of the firebox and enters in at the top by the glass door. the sec air feed is just a small independent supply to the base of the riser to ignite unburnt gas. The reason to move the air from rear to front is to heat it up before it enters the firebox. Cheers.
@btkling
9 жыл бұрын
***** Thanks. What is the main advantage of heating that air prior to entering the firebox? I'm guessing it is somehow more efficient that way? Also, in your opinion, does a rocket stove use about 1/2 as much fuel (wood) as a normal woodstove? 1/4? What is a ballpark estimate? Thanks!
@LozHarrop
9 жыл бұрын
Brandon Kling Yes brandon any fuel burns hotter with pre heated air, when you burn wood and get the air super hot it almost starts combustion as soon as it passes the timber, it then cooks the wood burning off the gas in the process. This extracts much more heat from the fuel as just about everything is burned. Id say a good rocket uses 70% plus less timber than a normal stove, the vast majority of heat produced by the latter goes straight out of the flue along with the smoke tar and other un-burnt gasses. my old shop heater would burn one wheel barrow full of wood a day, leaving half a bucket of ash after the burn. This stove uses less than two 5 gallon buckets in a day and produces no smoke or sparks from the flue also around one cupful of very fine wood ash is left after the burn.
@btkling
9 жыл бұрын
***** Great explanation, thanks again! I sure could use one of those here in Detroit, Michigan. It's about 5 degrees Fahrenheit, or -15 C. :(
@btkling
9 жыл бұрын
***** Below is a link to a very detailed PDF on the dragon heater design that I mentioned to you in my direct message. I think there are a few things to learn from this design, although I'm not sure that it is better than yours. The link has some useful discussion on the design of the burn tunnel/riser. Specifically, their design incorporates a curve at the back of the burn tunnel, wedges to induce further turbulence, and a secondary air insert in the burn tunnel itself (before the riser). They claim the curve and the placement of the secondary air insert help to form a 'double helix' in the riser and achieve 900 mph internal velocities. I think that's a fancy way to say that they get the same swirling motion that you get. They claim their burn tunnel is made of a very insulative, refractory material. Lastly, they use bells instead of flues. If you've already seen this, feel free to ignore. If not, enjoy! www.green-trust.org/wordpress/wp-content/uploads/2013/08/Dragon_Heaters_vs_Rocket_Heaters.pdf
@Paulus14
3 жыл бұрын
Can I use it inside to my home????
@LozHarrop
3 жыл бұрын
Yes it could be used inside just be aware of the very high temps of the stove body, if there were children around you would need to cage the stove off in case anyone fell on it or touched it.
@Paulus14
3 жыл бұрын
@@LozHarrop No smoking???if I construct it exactly like you
@bigoldgrizzly
3 жыл бұрын
@@Paulus14 I have to go outside to smoke :
@this-is-slammin-549
6 жыл бұрын
I have enough stainless steel to make this entirely out of 10mm SS with a schedule 40 SS riser. Do you think the riser would hold up? Not to toot my own horn but I’m pretty slick with my stainless welding. I’m thinking I could really make this into a piece of functional art.
@this-is-slammin-549
6 жыл бұрын
Awesome design. Only thing I would elaborate on is on the secondary air. I think I have a decent idea for better gasification.
@LozHarrop
6 жыл бұрын
Thinner stainless will hold up for a while, and I think real thick stuff might be a good solution, the exchanger ideally wants to be a thin material which will extract heat faster
@LozHarrop
6 жыл бұрын
hotter the better for sure
@PeaceLoveLightTruth
9 жыл бұрын
WeLL DOnE !! - )) .... and M-aNY ThankS !!! - ))) LOVELOVELOVE ))) greb'Z )
@LozHarrop
9 жыл бұрын
PeaceLoveLightTruth Thankyou all the best.
@JoeFeser
9 жыл бұрын
It seems under-engineered :) Will this be in your will since it will last a lifetime.
@LozHarrop
9 жыл бұрын
***** Hi Joe yea its a bit disappointing mate, I couldnt find a titanium gasket for the particle accelerator which was to go in the exchanger when i was building the stove, kicked myself later when I found them on amazon of all places ;-)
@kylepartain7941
8 жыл бұрын
Lol, yes...I was shocked to find metal on Amazon!!! And cheaper than online metal retailer!!! Amazon is awesome!
@xsbiggy6349
8 жыл бұрын
happen to have blueprints available?
@LozHarrop
8 жыл бұрын
+Brandon Waterman Just a sketch and talk through Brandon here..kzitem.info/news/bejne/xYmMsaR3kZ56aoo
@cupdejello
7 жыл бұрын
does a stove like this require any cleaning
@LozHarrop
7 жыл бұрын
not really only empty the ash from the firebox every few days
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