150mm Batch Rocket Stove workshop with heated stratification bench - time Lapse
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- Опубликовано: 13 сен 2024
- This is a time lapse video taken over the course of 6 days of us facilitating a workshop in building a BatchRocket mass heater.
it is a so called 150mm system with a heated stratification bench. It will be heating a small Yoga studio of about 77 cubic meters. It is built in an old stone farmhouse without any insulation in the walls and limited insulation in the floor and roof so therefore it requires quite a big system like this one to keep the space nice and warm.
The workshop was a great success, we got a lot of wonderful feedback and surprisingly a lot of the feedback was about the group dynamic. We did feel like a big family how we were all helping eachother out and how everyone was getting a long with everyone. This was our 2nd workshop and we are hoping to do many more, spreading this wonderful Rocket stove technology, changing the world one heater at a time.
If you would like to know more please visit our webpage and facebook page:
www.batchrocket.pt
/ batchrocketpt
Thank you so much for making and sharing. You've got a beautiful family and none of them afraid to get hands dirty! This is a first class build all the way. When I worked in construction years ago I had the pleasure of working with a Portuguese mason. He was very particular. It must be in the blood, your brickwork is superior to most and I've watched 30 or 40 videos like this. Obrigado novamente.
Thank you for this great feedback! Much appreciated!
Much appreciated, thank you.
Very nice job!
Great skills 👍
Where is the secondary air coming in from the bottom
Can the flue come out of the far side of the bench?
Lavoro straordinario!
Thank you!
Very nice build but I'm not understanding insulating the bell is that not where you want to extract the most heat from
Its not so much the insulating factor of the material but more the compressibility of the material. Although the insulation tends to slow down the heat transfer a bit spreading the heat more evenly over the bell. The inside of the bell expands due to the heat. This expansion is taken by the superwool, not affecting the outer bell.
i did not see the smokestack
Thank you for a great video. You made it Very informative and easy to follow. I have a cottage on the west coast of Ireland , right on the Atlantic and I am going to build a RMH like yours. I’ve done a little research and The one you built looks like it would fit in my room. I have a place in Carcavelos cascais and go there quite often, I could ger some of the materials needed there. What I need to know Where could I get / purchases a set of plans , a door, and the bricks for the fire box and riser. Any information would be appropriated. Keep up the good work.
Hi gasman, thank you for your message, I'm glad it was helpful. If you write us an email on info@batchrocket.pt I will give you some pointers.
Thanks so much for taking your time ... Just one question in the out side of the structure what kind of bricks did you use. Once again love you guys ..
We use refractory bricks but its not necessary everywhere. Its just what we have here.
May I ask, what is the function of insulating and using a double skin at the top of the bell? Great build btw, will be starting my own one soon ☺
It is to protect the outer layer from the expanding inner layer. Due to the huge heat differences in the bell when the stove is cold the inside of the bricks start to expand, becoming bigger than the outside, causing cracks on the outside. We've had this on a stove we built before. Each time the crack also disappeared but we think that over time they might increase in size. Thats what they also call the caterpillar effect or creep effect. Good luck wit your build. What system will it be?
@@batchrocketmassheaterportu264 Is the purpose of the double skin simply to have more mass or is there another reason? Mine is a 5 inch system. Pretty much identical to yours but smaller so as to fit on an existing fireplace hearth. Almost finished it now. Can't wait to light it, I've wanted one of these for years 😂
@@cocospops9351 If we hadn't built the double skin we would have built it 11 cm thick like we did the bottom layers. So instead of lying the 6cm bricks flat, we put them upright. So that's 6cm plus 1 cm superwool plus 3 cm firebrick on the inside. So it's actually less mass. Good luck with your build and enjoy all that radiant heat.
And the other question is how you stick the super wool ?
On the firebox and riser we use HTC, high temperature cement. In the bell the Superwool is sandwiched between firebricks
Excellent video. Thank you for sharing. I have a question. Is it possible to finish the top of the bell with iron cast plate in order to have a cooking surface?
You can yes and we have done so with smaller models. But we didn't find it very useful as you only tend to use the mass heater 2 or 3 times a day for about 45 minutes.
@@batchrocketmassheaterportu264 thank you very much for the information s.
Have you explored adding sand to a setup like this? If so how would this affect insulation (assuming sand would take brunt of heat to less needed to protect outside bricks?) and would it release the heat more gradually over a longer time?
I'm not sure what you mean? Add sand where? If you mean as mass then I believe its not a good idea as it has a lot of air pockets which are insulating. Hope that helps.
Why is the top portion double walled and insulated?
Because it gets blasted by tons of heat. That's "normal brick up there." ... it won't last long to 1000 degrees.
The main reason is to protect the outer layer from the ever expanding and contracting inner layer. The wool insulation basically softens the blow.
Both layers here are built of firebricks. But the outer layer can be normal bricks.
The insulation also spreads the heat a bit more evenly
Super! Splendid! What size are the bricks, please!
About 220*110 and thicknesses of 30, 50 and 60
Love your videos please just one question what kind of brick you guys used for the out side of the stove.. thanks so much love you guys
Que duración tiene el riser por ser ladrillos tan finos hasta partirse y desmoronarse por los shock térmicos que deben soportar. Como puedes ver ese desgaste sin desarmar la estufa
I tried google translating your comment but still don't understand...
We're in the hell was the flue, and how did it stratisfy into the bench. That build made very little sense to me
The flue comes out on the right side of the heater. Around 2:37 you can see us installing a socket where a flue pipe can be inserted. At the end of the movie it is installed but you can only see it rising above the bell.
The bench is an extension of the bell. The hot air can freely move into the bench before entering and exiting the system through the flue pipe which has a lower entry than the bench. So only the coldest air exits the system, heating up the bench very nicely. Even only the testburn with about half a batch of wood burnt in a very wet system created a very comfortable place to sit on the bench.
What is the white stuff around the raisers
We use ceramic fibre blanket because its heat resistant, insulating and compressible. Not very ecological but we don't know of any other material with those properties.
I want to build one will you help me?
Muy buena
Viva! Bom material, obrigado pela partilha! Eu estou a fazer um 150mm também mas com invólucro metálico para aquecer água. Tenho algo dificuldade arranjar material refratário e o tal manta de isolamento que vocês também usam. Será que podem indicar alguma empresa no norte de Portugal (grande Porto) para comprar este material? Obrigado e continuação de bom trabalho!
Hi, I am interested to have a heater made in central Portugal? Struggling to find any information? Do you know anyone in Portugal making? What is this kinda of heater System called in Portugal
@@Shana.Browngedge Hello! To be honest with you, I also do not know anyone... As you saw it, I built it by myself learned the technique through RUclips videos and homestead forums from the USA. I always searched in English everywhere when I was gathering information: Rocket Mass Heater or just simply Rocket Heater. I hope you find something useful! Good luck and if you need any information just let me know! Cheers
Abrigada.pt is a good source glue and special bricks. Lizmontagem is good for all sorts of things heat related like Superwool.
How high is the raiser
For this size heater, 100mm, is should be between 58 and 72 cm. I believe its 68 cm
Hi, I am interested to have a heater made in central Portugal? Struggling to find any information? Do you know anyone in Portugal making? What is this kinda of heater System called in Portugal
As far as I know I'm the only one doing it in Portugal.
@@batchrocketmassheaterportu264 do you have a web site or a place I can get some more information.....like average cost for mass heater?
@@batchrocketmassheaterportu264 do you have a email, FB, or number where I can contact you directly
Cuato mido de ancho alto y profundo la campana?
I don't speak your language and there's no option to translate. Can you ask your question in English? Or Dutch 🙄
Не ПРОБОВАЛИ СТРОИТЬ РУССКУЮ ПЕЧЬКУ С ЛЕЖАНКОЙ
What kind of material are you using
Firebrick, metal, clay, sand, fire cement, superwool
what do you use for firebox top?
We use a combination of steel T-profile wrapped in Superwool and firebricks and firecob.
@@batchrocketmassheaterportu264 I mean, roof of fireplace (core)
@@OlegKhalikov Ah yes, that is exactly what you asked. Sorry. We have a refractory factory here in Portugal that creates these slabs of 330*330*30 which, in combination with 50mm firebricks for the walls gives us a perfect size of the width of the firebox. We have two layers of these slabs for the ceiling.
@@batchrocketmassheaterportu264 thanks!
@@batchrocketmassheaterportu264 Hello, how about the expansion of the metal t-profiles - would not create cracks in the top of bell? Thanks
Seems no P channel, works better or not?
indeed no p-channel but a floor channel instead which is possible to replace if needed. It also makes the heater easier to build and the door easier to make.
Floor Chanel is in the centre bottom of the core?
@@zhoueric1450 Yes it is. Lots of info can be found on batchrocket.eu
I’m interested in your door. Do you make them yourselves?
We designed them and we have a local blacksmith put them together. Getting the door right was one of the more challenging bits of the whole the process. Very happy we have it sorted. Send me a pm if you would like to have the design in sketchup.
@@batchrocketmassheaterportu264 Batch Rocket Mass Heater Portugal I would love that thank you but I can't see how to message on youtube.
my email is info@positiveaspect.com.au
Can you also tell me the type of metal you use for the door? I was hoping to keep the weight down and avoid using cast iron.
Thanks
Dan
@@batchrocketmassheaterportu264 I tried to PM you and I cant. I also tried emailing straight from your site and got an auto reply saying the email would need to be cleared by a moderator??
@@positiveaspect5730 I think its called milod steel. I will reply to your email
@@positiveaspect5730 I received your email, not sure about the moderator feedback but I received the email, thanks