How a three-channel heating brick oven works. Cutaway demonstration

[@esra_erimez]

How has no one noticed that this man is a giant?

[@hectorcardozo6990]

jajajaja good one!

[@grain-diose]

A giant man made a micro oven 😅

[@guardrailbiter]

Don't you mean HOUS (Human Of Unusual Size)?

[@ericv00]

No no, you have it all wrong. The brick oven is just far away.

[@coziiikinz5658]

@@grain-diose giant man made a human sized oven

[@doppleganger7288]

Great demo....and thanks for putting no commentary or music in the background. The hum and noises of you putting everything together is the best soundtrack.

[@ve1l]

Well said!

[@goury]

Some commentary could be nice, but yes

[@RicardoVermeltfoort]

@@goury yeah I agree, the title mentions "How a three-channel heating brick oven works" but adds no commentary on what effect these 3 channels have

[@anastasiaklyuch2746]

I loved it until I heard the eerie ghost screams of the damned in that smoke zoom 😅

[@hpenvy1106]

The most polite and civilized comment section i've ever seen. Stay awesome

[@roystonlodge]

Challenge accepted! ;-)

[@alexsnow3319]

I say, Sir! It is quite refreshing! *1876 grumble* Quite.

[@Sensei_BigJoe]

My girl is usually pretty chill and civilized when she smokes too 😅

[@elemat28]

Had one of those at our family home when I was a kid, was rebuilt multiple times over the years to breathe new life into it and give it a good clean. Seeing a cross section of it in action is truly taking me back

[@peterjol]

I was having thoughts about how cleaning the chimney soot could be a problem but it would sure cut down on so much of the wasted heat from a straight up chimney .

[@dillonvandergriff4124]

​@peterjol Generally speaking, masonry stoves like this are designed to burn wood really efficiently, in a short period of time, rather than over time like a cast-iron stove. This results in dramatically less build-up inside the chimney, so cleaning is less of a problem!

[@relentlessmadman]

@@peterjol you didn't notice the sooot trap clean out! or you don't like the idea of having to pull the soot into the house!? ash vacume? you could even reverse the flow so that the cleanout is out side!

[@pierrefpv]

How cute are those tiny bricks!

[@jameswatters9592]

Yeah and he only charges £500 a day and only takes about 2 years to build your house

[@goury]

Not cute enough, I saw cutier

[@fitito500]

And not a single peace of theory....🤷? How that could be good for anyone?

[@gizmop0ny]

Nah he just big

[@paulmlemay]

I have watched this at least five times. I am a big fan of masonry heating and finally installed one in my home.

[@kashifbaby406]

Good Demonstration and No Music.Thanks.

[@1873Winchester]

The swedes use a 5-channel design. The finns as well though in later years they modernized the masonry heater with a free standing core that was not physically connected to the walls. This had many advantages and prevented stress from thermal movement. They also got rid of the traditional tiles and used metal exteriors, thin sheet metal, even copper. This was far superior to tile and the whole heater can be fired to higher temperatures than the traditional tile based ones who would crack and leak if burned too hard. Finnish designs from the 1940s also incorporated secondary air.

[@JDeWittDIY]

Do you have an example of an improved Finnish design?

[@1873Winchester]

@@JDeWittDIY Here you can see a drawing i.imgur.com/xmGIRIm.jpg And here you can see a small one being built eevuli.blogspot.com/2015/05/ponttouunin-muuraus.html Googling the word Pönttöuuni should yield more results

[@unclebounce1495]

I'm going to look into this more. Thank you. this is very interesting to me.

[@GF-dm3vb]

@@1873Winchester Looks efficient! Btw, LLP=5.5m2 means heat exchange surface area. I have similar fireplace still in use from 1928, although it does not have the secondary air channel.

[@maxamillion499]

@@1873Winchester Thankyou for sharing links very interesting, loved looking at the design. especially the fresh air port leading directly up in the fire chamber. I didn't see the couple implementing that feature which I imagine would be hard to do in the version they built. But I would like to encourage people to emulate as it makes the fire hotter. I think that's way it is in the plan, but I could be wrong, lol. Nice vid Grain, loved the little bricks. It would be great to see a full working miniature fire place plus infrared video.

[@Astrofrank]

Very good demonstration, but it would be nice to have additional explanations, perhaps as subtitles.

[@FailedFace]

Agree, I'm not sure I would consider this a "How it works" demonstration. It's simply a cutaway demonstration. Very useful for explaining, but the video is lacking that key "Explanation part". I do appreciate the demonstration tho. Great work.

[@pigcatapult]

@@FailedFace Yeah, I don’t understand the benefits of this over a straight chimney

[@moseszero3281]

@@pigcatapult with no other explanation I would guess that this is used so the bricks in the chimney collects more heat to radiate into the home.

[@marqet14]

I actually thought this was a pizza over the whole time

[@massimosoricetti9028]

In a normal stove with straight chimney, cold air from the chimney will freeze the stove almost immediately when the fire is done burning. With this stove, cold air is blocked by the syphon, which is filled with hot smoke. The stove stays warm much longer.

[@jameshansen993]

Great demonstration but not sure of the purpose of a brick oven like that. What is the advantage?

[@Boris-Vasiliev]

These ovens are built for heating homes. When hot gases are moved on a long path they transfer more heat to the oven, instead of wasting it outside.

[@jamesgizasson]

​@@Boris-Vasiliev Most of the heat in a regular modern fireplace is sucked straight out of the chimney. This design uses more surface area to absorb heat from the smoke and radiate it through the brick inside the house! :)

[@robozstarrr8930]

idk, been trying to figure out whereabouts exactly do i place the food to cook ! .... title did said " heating brick OVEN " .....

[@Boris-Vasiliev]

@@robozstarrr8930 Maybe english is not his native language. There are similar designs for both heating and cooking. They are ususally made with a bypass for summer time, to direct smoke straight out of the chimney.

[@unclebounce1495]

@@robozstarrr8930 you'd place the food on the top shelf. the bottom two are for the fuel/ash.

[@MariannedelFontán]

What a cute and amazingly clear demonstration!! I imagine something similar is going on in old cast iron stoves.

[@nozorboletti9327]

Santa Claus didn't like this model.😂

[@JuhoJohansson-bz3jb]

Which is why, here in Finland Joulupukki ("santa") would just use the door like normal people.

[@richardtruckner2203]

Great demo, I’ve built a few fireplaces in my time and I can see how this would reduce down draft problems, particularly with a short stack. I’m assuming once the bricks heated up, the draft would be very strong and the thermal mass would continue to radiate heat.

[@januzi2]

There are clinker bricks around the main chamber, to accumulate the heat.

[@michaellebert8907]

thats why this isnt actually the best demonstration - he didnt preheat the stack using the top gate. Thats pretty important where extreme temps happen, the smoke wont even push out of the stack if the temp was below zero celsius, not without smoking out the cabin.

[@richardtruckner2203]

@michaellebert8907 that was my only concern but I can see how well it would work once heated

[@dustinschroller4884]

Thanks...now I want tiny bricks and a miniature trowel.

[@grain-diose]

miniature trowel i made myself, mini bricks are on aliexpress - aliexpress.com/item/1005007485102761.html

[@TheNavi1982]

Отличная демонстрация! Хоть и в миниатюре, но весьма полезный материал отсняли. Огромное вам спасибо!

[@grain-diose]

Спасибо! Идею подсмотрел у Владимира Вишнякова - kzbin.info/www/bejne/hJipg4KoqdWgodU

[@TheNavi1982]

@@grain-diose И за это видео - тоже спасибо.

[@grain-diose]

@@TheNavi1982 Кстати, он делает такие контрукторы печей на заказ, там где-то есть его контакты.

[@myhandlehasbeenmishandled]

I don't need it but I'm so gonna make it this summer. It's been years since KZbin suggested something so fun and informative that made me wanna do it myself. You got yourself a sub.

[@adamnevraumont4027]

Curious, what are you going to use it for, a dollhouse?

[@hensonlaura]

Thanks Grain. Quality demonstration done w/dignity.

[@Armorlord04]

I would have to imagine the "cleaning access" door would be great for smoker-style cooking as well.

[@12theotherandrew]

Cleaning of the Russian stoves is done only occasionally, by removing two strategically placed bricks in the structure. Chimneys and stoves are often painted white to make it easy to spot any dangerous leakage.

[@d.aardent9382]

Wow this is the most straight forward direct visual explanation of the basics of that type of woodstove/heater. I've been wanting to build my own new replacement for the old crappy 1970s funnel fireplace my dad built in when I was a kid, its terribly inefficient. Its cool looking but wastes so much heat. I've just really been interested in these when I had them featured in a magazine I was getting back several years ago.

[@tcveatch]

How to increase the combustion chamber temperature for the cleanest most efficient burn? Take the heat out of the system outside the combustion area, that is, in the exhaust pathway. Best to insulate the combustion chamber, and perhaps it’ll even require pre-gasification of the fuel. Aim for blue flame in a small combustion chamber and a long heat removal path to combine good burn with good heat extraction. Key is not sucking the heat away from the combustion chamber walls. This is a great few steps in the right direction. Congratulations and thank you.

[@skakpedersen]

I am burning wood in a similar setup. Would you keep next days logs near the oven, for a 24 hour preheating?

[@906MediaProductions]

​@@skakpedersenI put mine on the thermal mass, drives any moisture out

[@skakpedersen]

@@906MediaProductions Thank you very much!

[@ABaumstumpf]

@@skakpedersen That is why old fireplaces normally had a compartment for storing a bit of wood right alongside them: you'd fire the place and then get wood for the next burn which would be nice and dry before it is needed.

[@JuhoJohansson-bz3jb]

This is relatively easy in masonry fireplaces... The brick is usually not too thermally conductive so it would allow fire to reach fairly high temperatures. In fireplaces that are made out of metal the burn chamber is usually insulated with brick or some other ceramic. One important factor to consider is the fact that once you do have a bed of charcoal, primary air fed through the grate is basically going to regulate the temperature of the coalbed and as such the rate of gasification. This is why secondary air is a necessity and according to L. D. Porta the ideal ratio between primary and secondary air is around 20/80% L. D. Porta worked on steam locomotives during the end part of the steam era, and in my opinion his works are interesting to basically anyone interested in burning solid fuels, or locomotives. He was one of the few locomotive designers to apply scientific principles and methods to locomotive design... It is a bit sad that all he got to work with was making modifications to already existing locomotives. But to the very end he did dream of making new locomotive.

[@ricardoclemente3255]

you are the man! I hope to see more of your work here on KZbin. Thanks!

[@rey_nemaattori]

Those tiny bricks are the cutest 😂 Very effective demonstration!

[@12theotherandrew]

I used a similar type of stove in Russia. There were two dampers, both open to start the fire. Once it was going and the chimney was warm, the lower one was closed. When all the wood was burned (usually in less than an hour) we closed all inlets and the chimney damper. Then the whole structure heated up and kept the house warm for about 12 hours. I would like to have seen an explanation of how that worked.

[@TheDoomerBlox]

Thanks for this neat demonstration of the airflow characteristics of a proper oven, as well as demonstrating how to assemble one. : - )

[@dimik3855]

Thank you for the inspiration! Theoretically one can make a pizza/roasting/baking oven, smoker and wood heater all-in-one.

[@northeastoperations]

Cool! This is great for learning about the how the oven works. Can't wait to check out your other videos!

[@Nyllsor]

Inspiring me to build miniature stoves, built a simpleone out of aluminium can in 1/13 scale today - It worked!

[@Greenr0]

Great job. Such an innovative idea to illustrate how masonry wood heater work without words. I wonder where a good place could be to drill a bunch of holes to combust the smoke.

[@iverburl]

That secondary air needs to be preheated, otherwise it cools the gasses below their flash point. I have a woodburning furnace that runs the incoming air through metal tubes in the firebox before releasing it through many tiny holes in tubes across the top of the firebox. When burning, they look just like the jets in a gas furnace. So to answer your question, an additional layer of brick could be stacked to form an envelope around the firebox, with narrow gaps along the top of the firebox. These channels would be closed when the firebox is first lit, to prevent downdrafting smoke away from the chimney, then opened once a good draw and flame is established.

[@s0d4c4n]

Thanks to this video, i now understand that a three channel oven works by smoke go up down up. Or sometimes, not

[@BartJBols]

My grandfather had one of these and he smoked hams in the top channel on a grill.

[@yamabiru4553]

Now I finally understand these things, thanks for the effort!

[@verum.est.sine.mendacio]

Неслабо вы заморочились! :) Отличный демонстратор получился

[@McsMark1]

Fantastic Stanislav! Thank You from New York!

[@SashaXXY]

Very cool! Please do more designs!

[@BluAspect]

This looks really cool, idk what I just learned though. Something special happen with making the smoke maze around instead of going straight out?

[@leobuana7430]

It's for traping the heat apparently

[@carlyleporter5388]

Fellow, you got a whole lot of spare time on your hands. Smoke gets out. What valuable information.

[@ovalwingnut]

Very COoL (or hot depending:) Back in the 60's they use to fear the 'draft'. But it look pretty sweet to me. I love that you even have a tiny tool too - oh, my bad Cheers from So.CA.USA 2nd House On the Left.

[@Linkongreentech]

Interesting & nice demonstration.Thank you 👍

[@stefanpop6091]

such a lovely demonstration.

[@yacht-responce]

Imagine burying those smoke routes horizontally under the floor of the house. That's ondol, a Korean traditional heating system. We cannot enjoy fire indoor but the house is nice and warm even from your feet. I can imagine your demonstration would be good too.

[@KlasKettilssonWullt]

can you retain the smoke somehow? For heat and for smoking food or fermenting alchohol? Make a smoke filled space behind the three layers so the cold smoke falls down?

[@ВиталийЩербаков-ф6ц]

Да,,,,,КПД 💯 процентов ,по Вашей конструкции смело можно делать дачный вариант печи, Спасибо!!!!!

[@nerrade]

Great little model. So what is the advantage of the s channel in the ducting? Why not just go straight up? Does that capture more heat in the house with this style?

[@KareBear-np1tx]

The bricks absorb the heat from the smoke. It becomes a thermal mass which will radiate the heat even after the fire goes out. The long path allows better heat absorption than a straight shot. Check out thermal mass rocket stoves. There is no smoke one the stove gets going, and no heat is wasted out the chimney.

[@HerreraCam]

Thank you so much for this!

[@jongkim8386]

Thank you for your greatest visual statement!

[@miriampopa5436]

Miniature that functions...means tomorrow one big normal stove,functioning perfect!👏

[@BBQDad463]

Thank you for this video. Very interesting design, wish my fireplace had been built like this. Subscribed.

[@bonnienichalson5151]

Tiny demo great educational post !

[@GabrielGABFonseca]

This is both adorable _and_ educational!

[@rogeriodinizmachado3734]

"grain" - thanks so much for sharing this

[@tarogue1]

How do you clean the internal chimney? Watching the soot build up just in that small demo makes me wonder how you prevent chimney fires in a full sized one.

[@johnathon007]

You use a brush like a normal chimney. The back one you clean upwards from the burn chamber, then the cleanout door above the burn chamber for the horizontal section, and from the top of the chimney for the tall section.

[@Ken19700]

How do you clean around the bends?

[@jozefkovac6858]

Great, but how do you clean the soot from the further vertical parts? Would it be possible?

[@iverburl]

The backmost channel would have access at the top. Buildup is pushed down into the chamber.

[@Larsbor]

They should build models like this in architectureschool ! Heating in a house is a very important part of its architectural performance.

[@sci3nceorbust917]

I love your video, this convinced me to make this my hobby.

[@dimik3855]

Those mini bricks are cute. Did you make them yourself? Ideal for your demonstration. I will try this at home. I hope using my son's Lego bricks won't be a problem.

[@grain-diose]

No, I bought it on Aliexpress - aliexpress.com/item/1005007485102761.html These bricks are like real ones, made of clay and fired. But if you want to seriously do this, you can make it from plaster, there are many videos on KZbin - kzbin.info/www/bejne/o6XceoFnZad6hrs

[@crpth1]

Didn't your mother told you to not play with fire?! LOL 😂 😂 Awesome demonstration. Love the scale model. Cheers

[@B30pt87]

Awesome! Many thanks.

[@wildadventures4173]

This is the Coolest thing I have ever seen ❤️. Thank you.

[@HIGHNUNES]

I am not a smart man. Is this an improvement over a straight chimney?

[@flamesofhellstudio]

What did you use for the mortar, it seems darker than what I'm used to seeing.

[@KanjiasDev]

You did a really amazing work! I couldn't help myself but subscribe to your channel for this great illustration using a real miniatur demo!

[@1943L]

Good that it shows condensation in the chimney. That’s where old log burners leave creosote and tar I believe.

[@pieterboots8566]

I wonder if a double fire can burn the smoke and gasses of the first one.

[@grain-diose]

Of course, such stoves have been made and sold for a long time.

[@RichardDenRooyen1973]

simple but good demo... nice it shows how the waterdroplets form in the chimney

[@donperegrine922]

Wait.....why was there water droplets in the chimney? That makes no sense to me, but it seems to make sense to you

[@TotoMacFrame]

@@donperegrine922 They would not be there normally I guess. This is only moisture from the heated air, condensating on the colder glass plate

[@donperegrine922]

@@TotoMacFrame I guess I don't have a good intuition for condensation. I thought the cold glass would have to be colder than room temperature. Or otherwise, the hot air to have more water than the cold air. Do normal brick chimneys or fireplaces ever get condensation, while the brick is cold?

[@TotoMacFrame]

@@donperegrine922 Rule of thumb is: the warmer the air, the more moisture it can carry. When warm and humid air gets cooled, it cannot hold on to the humidity and the water "falls out" the air, resulting in fogged up windows in the winter, or in fogged up windows in the car when you breathe much in winter before the heating works fully. The air basically gets rid of all the water it cannot carry any longer when it cools down, e.g. by touching a cold surface. This surface basically only has to be cooler than the air to let this happen. Cooking pot with glas lid? Lid gets condensated, since the hot air from the pot cools down on the cooler lid. Those droplets are still freaking hot though. If this happens in a normal chimney is beyond my knowledge, but everything I know points towards "It should".

[@amesadamson]

that was incredibly helpful, thank you.

[@the_hate_inside1085]

Cool, can you show case a soot fire in the chimney?

[@zhalosky]

I like this but. Where do you put the dough in?

[@grain-diose]

This stove is designed to heat your home more efficiently. For cooking, no one bothers to make an appropriate design.

[@WoodRanger138]

Thank You Brother. This is the Future (and burried past) of wood heat in homesteading around the world. Those that learn this trade will be wealthy.

[@chrismrau9589]

Nice demonstration. Do you not have sticks where you are from? Lol

[@Koellenburg]

this is genious, it keeps the cold air out, and lets smoke out too :O

[@billbrown994]

So this was only used for heating and not cooking as well?

[@copudesado]

Very cool! Can you make a version that illustrates an oven with secondary combustion chamber?

[@gavanwhatever8196]

Thank goodness for the comments. From the video alone it just looked like a complicated way to get smoke up a chimney.

[@sacielo]

The model is a lot of fun to watch, but can someone pls explain what the problem with a just one-channel chimney would be? I'm a profane who comes from a rather warm place. Thanks in advance!

[@ThePatricHalldin]

The extra length of the channel allows the bricks more time to absorb the heat from the fire. That means you don't need to burn as much fuel to warm your house.

[@sacielo]

@@ThePatricHalldin Thank you!

[@partiespronto]

What part is the oven?

[@ptiwatthanont]

Great! I am still wondered. What would be happended if we do not close the furnace chamber while burning ?

[@grain-diose]

I think there will be a lot of draft and a lot of heat will go into the pipe.

[@augustcanyon3438]

Thank you for this. You have no idea how very helpful this was for me. I look forward to building something like this in my future home before the Grand Solar Minimum really gets going.

[@stofjes4204]

very nice video but why a 3 channel chimney? Why not just 1 channel?

[@grain-diose]

So that the furnace body warms up more and gives off heat to the house.

[@skakpedersen]

Beautiful! Thanks for sharing 👍

[@Gastritis2000]

Great model, great video. Thx!

[@Lou.B]

Stunning! Great work!

[@sonjanordahl3158]

This was very well done. Thank you.

[@deltafour1212]

It's a beautiful model of a brick rocket stove.

[@BritonAD]

Is there a benefit to this design over a common wood stove?

[@phoenixjacket2053]

I heat part of my house with something similar like this. Heat moves first up then down through four channels then moving to the chimney. Once you heat it up and keep it warm it will keep the heat in the wall for several hours, it don't need too much fire per day. It is like a radiant heater but bigger. I even went to meet the old man whose family was making those since early 1900, he gave me drawings about how it works, it was patented. Pretty advance system fire turns in some kind of extreme hot fire, don't know what it is called in English.

[@raulhumbertosadler3961]

El aire frio jamas dificulta el funcionamiento perfecto el plano❤❤❤❤❤❤❤

[@steveaspen6773]

...wondering if the smoke can be reignited as is escaping out the last channel.and produce extra heat? Also if a free-rotation fan(turbine effect) can be at the base or beginning of the first channel, as if to produce a directional fire up the channels, and generate higher temperatures? Good video, Grain.

[@grain-diose]

I don’t know about the fan, but the first has been around for a long time. This is called a "gas afterburner", for sale metal stoves almost all are made this way, but many people also put it out of bricks. In Russian it is called a bell-type stove.

[@steveaspen6773]

@@grain-diose I understand the concept's age, I am saying again, "incorporate in the design these new features" , meaning wondering if the smoke can be reignited as is escaping out the last channel and produce extra heat. Will you make another video incorporating these features?

[@grain-diose]

@@steveaspen6773 Yes, it is quite possible if there is interest and a lot of views.

[@steveaspen6773]

@@grain-diose you won't know unless you make another video. Best wishes.

[@giuliobuccini208]

What is the main advantage? The smoke cannot get back and disturb a clean combustion?

[@michaeljin101]

Above satisfactory, outstanding demonstration. If smoke can be utilized by adding some burnings, literally let a smokeless burning...

[@FirstMinecraftPlayer]

what's the bennefit? I didn't understand, if someone could explain to me please

[@russellcollins5692]

Never before seen! Miniature Flames, how did he do that? This design makes for more thoughts.

[@qwertymnbvc-k9x]

how will you clean upper corners? fire can't in corners, soot will build up.

[@ArthurSabbatiniBuoro]

Muito interessante. Obrigado pela aula!

[@davidashline7365]

Very cool !! I mean very hot and efficient

[@fallbranch]

Where would you put your tea kettle in this arrangement?

[@juanvera788]

very good, good job

[@SaintTrinianz]

Where does the pizza go?

[@grain-diose]

Who was talking about pizza? 😏

[@SaintTrinianz]

@@grain-diose my tummy!

[@b43xoit]

@@grain-diose or bread dough, or whatever you want to heat? Isn't an oven for heating things?

[@jimf1964]

So how would you clean the first 2 chambers, or channels? Or does it get so hot there is no residue or soot build up?

[@grain-diose]

I'm not a stove maker and I don't even have the practice of heating a stove. But I think that windows are not needed to clean the soot on the walls, windows are needed to clean what has fallen. For example, particles flying with warm air from firewood when firewood is flowing. It can score a turn near the top window - 2:53

[@jimf1964]

@@grain-diose Yes, the door or window is clearly for when you sweep the chimney, and what has fallen can be shovelled out, but that’s the third row. The first two have nothing like that. That’s why I’m wondering is maybe the creosote only builds up when it starts to cool or something? I only know about metal stoves and fireplaces. This stuff is pretty alien to me.

[@grain-diose]

@@jimf1964 You need to ask the experts or google for the answer. I took only the finished scheme of the furnace, without changing anything. I was just wondering if it works in miniature and I tried it.

[@jimf1964]

@@grain-diose Yes I do. There are some wildly complicated Russian and Scandinavian style brick ovens, and I’ve always wondered how they work with all those channels without blocking up with soot, or having a fire from it.

[@buteos8632]

That's exactly what happens, racios are important though and making sure the combustion chamber is well insulated in order to get as hot as possible burning everything and not producing soot.

[@Oasis_Desert_Rose]

I expected that the small upperclean out door was actually used to Start the airflow and proper draft as you then beging the fire below... Nice job! Would like to see other designs, like down exhaust to a bed/stratification Chamber... and then exit smoke from the floor...!?

[@Greenr0]

I think it is a place to put a baking oven.