hi,Im building 20 cm/8"/ batch box monster.It will have ISA of cca7.5-8 m2 in one bell ,with cast iron oven insert.The dimensions of fire chamber are, width 33cm/12.9"/,height 43cm/16.9"/ and depth 60cm/23.6"/.The heat riser is 20x20cm/8"/ and will be 140cm tall. Now ,im getting to problems with connecting the stove to existing chimney ,witch is 40x40cm/15.7"/ old brick chimney.My plan was to use 20cm/8"/pipe and elbow,but now i will be probably forced to use only 18cm/7"/pipe and elbow for connection . My guess is, the gasses should be cooled enough and contracted enough, to go thru the 18cm pipe without problems ,but could someone more knowledgeable elaborate on it please. here is a ling for some pictures.thanks a lot.Radek s101.photobucket.com/user/snake11112/library/
although i am not an expert but i have a feeling that it should work. i am thinking about the Kuznetzov stoves and they have much smaller chmineys, so i think that in the bell system like this making a connection smaller, while having the chimney bigger should not be a problem. but as you say someone more knowledgeable should comment on this.
BTW. another great build Radek and another wonderfull doors:)
I would not be surprised if it worked because gases are contracted as you said. But I suppose that Peter tried it and as he did not speak about this, there must be a good reason! I should buid a 25 cm system and I woud prefer to use a smaller tube for the exit, like you!
Well, i have a system working with 6 inch system size, and 4 inch transition through the wall, to go to the chimney of 14x20cm in brick. Works right, exept when i have southern wind, or the whole system is cold.
hi thank you for the comments and advice.Luckily i was able to figure out how to build a 20cm x20cm channel to connect the stove in to chimney .I still have about a week of work to close the top and finnish it up.Unfortunetly the weather is really moist this days ,so i really don't know, how long will it take to dry up so we can make first fire.Here im adding a link to some pics of the build and progress. s101.photobucket.com/user/snake11112/library/?view=recent
hi independentenergy no the heat riser is insulated with 3.8cm/1.49"/ of fire wool,its just not done yet on the pictures.I dont think the stove would work without the riser being insulated.The insulated riser is necessary in rocket stove business.Here is a pics of inside the stoves bell with some insulation in place.Im adding a link to some current pics of the build. s101.photobucket.com/user/snake11112/library/?view=recent. I have made a few small fires already ,just to help with drying process and the stoves are working fine in this point. Hope to be able to load the stove full within few weeks.
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Last Edit: Jun 8, 2014 8:51:17 GMT -8 by peterberg: edit link
hi Independentenergy for closing the top of the bell ,i have build in to the bell partial division /see this pics s101.photobucket.com/user/snake11112/media/DSC04434_zps6324d8a7.jpg.html /and than i close it with schamote /fire bricks/ slabs and used that division as a support.I can get fire slabs as big as 66x66x6.5 cm /26x26x2.55 "/ around here.
Radek, all your mass heaters are like works of art. I'm building a 4" batchbox here in france and your work and designs are a wonderful source of inspiration! Thanks for posting this with so much detailed pics !
Hi Yasintoda thank you so much for your comment ,its nice to know my work has inspired you.I have learned so much from pics of another builders ,so i know how much it can help.Again thank you.
deadstarsstillburn: moreover, the house has 3 storeys (large attic) so I assume if I get very efficient heating on the ground floor, that will go a long way toward heating the upstairs as well, no?
Oct 21, 2020 6:53:59 GMT -8
BenAlexanderT: Happy new year everybody. I wish you the best
Dec 31, 2020 15:06:14 GMT -8
Solomon: Anybody in Southern Oregon, in Jackson or Josephine counties?
Jan 16, 2021 21:54:43 GMT -8
gnomedome: i realsie this is from 2009
Apr 14, 2021 8:30:44 GMT -8
gnomedome: i realize this is from 2009 id love to see the photos from this ..as im looking to build a sauna soon similar to this .... if anyody sees this post obomartin@gmail.com..... the photos in this post did not show up
Apr 14, 2021 8:32:00 GMT -8
dcoyte: I am planning to use a cast iron heat exchanger out of a hydronic boiler set on top of my rocket stove, flue out the top. There will be a pump moving the water through the heat exchanger into an unpressurized 2000 gal tank. Any thoughts?
Dec 31, 2021 6:45:55 GMT -8
syekoms: Yes just found this forum am in Josephine county.
Jun 17, 2022 12:53:32 GMT -8
ecoenergyman: Hi new to forum I was wondering where to buy a masonry stove kit I could install myself ? Fran in ireland
Aug 1, 2022 17:39:58 GMT -8
natureman: I have been following this site for years
Aug 28, 2022 10:58:59 GMT -8
nendo: Can anyone on this forum point me in the direction of detailed plans for a rocket water heater please?
Oct 22, 2022 15:15:43 GMT -8
fierolepou: Hi everybody! Starting a project from scratch, this is a goldmine!
Dec 10, 2022 5:20:09 GMT -8
Solomon: Best way to not die in a house fire is to build a stove where the really hot stuff isn't near the flammable stuff.
Jan 10, 2023 11:34:39 GMT -8
beppe: Hi to everybpdy. I'm new about the rocket stoves and this forum
Aug 30, 2023 22:17:32 GMT -8
beppe: I have a living room+ kitchen of 75 square meters that was heated by an ordinary pellet stove with a power of 8KW.
Aug 30, 2023 22:19:29 GMT -8
beppe: I want to switch to a DIY pellet rocket stove but I haven't found yet a project that is really suitable for my situation. Is there anybody able to indicate to me a good detailed project?
Sept 4, 2023 9:05:15 GMT -8
sksshel: Yes, very happy with my DSR2. I had not heard about the DSR3. I probably won't be using it but I will look into it.
Oct 16, 2023 9:15:37 GMT -8
rockinon: I have some questions about a Rocket Mass Heater, as I am in progress of getting a place built in Arkansas in the mountains of NW Arkansas and it will be very helpful. How can I add pictures to illustrate what I am requesting
Jan 23, 2024 11:01:07 GMT -8
dd24: Bonjour, Quelqu'un expérimente t-il sur les poêles "bubafonya" ou "stopuva"? merci pour votre réponse!
Mar 2, 2024 10:32:32 GMT -8