as long as you can build a solid, level base, it shouldn't be an issue. If one was a little low, I just sprinkled some sand, wither under the block or on top of the block, under the brick of the floor.
Last October, I posted some pictures of a rocket-fired cob oven in progress. Recently we have been working on finishing it, and I have a few more pictures of the current state. On the 3" of thermal cob we had in the dome last fall, we have added about 3-4" of insulating cob with perlite and straw, then sculpted with structural cob to reach nearly the final shape. It still needs a fine-tuning layer of cob or lime plaster and the plaster surface finish. It will have a pole structure with a shed roof over it to keep rain off.
Inserting images does not appear to be working... will try again...
My fb - it should get to the pics right now but not later... I will put them somewhere else for future visibility.
(Later) Thanks, Max! I still couldn't get the posted photos into that album, but I don't really care how much server space fb uses so I re-uploaded the pics there.
Post by harthadven on Aug 16, 2016 15:08:34 GMT -8
Aloha first of all i want to say thank you so the tremendous amount of knowledge that you are contuniously sharing with the world and the service you arent obly doing to the people but our mother earth! mahalo!! I would like to ask if you built the heat riser with firebricks? We are living on an island (clay-rich soil though) and want to use as many local resources as possible. Have you ever tried making fire bricks yourself?
Not sure if you were referring to my dragon oven or something else, but to give my answer to your question, I used a few firebricks for the front lower faces of the firebox where abrasion is a concern, but nowhere else in the flame path. All the rest is cob, and a few old common bricks supporting the floor because I had them and it was convenient to use them. I did use firebricks for the oven floor to get a hard, smooth, flat surface. You could probably use common bricks for that if you had good clean flat ones.
martinm: any one here with info \ experience with heat (from a mass heater) distribution with ducts throughout two storey house ?
Sept 8, 2018 22:58:52 GMT -8
padica: Good morning, this is a wonderful subject, please someone can help me with the theme of double and triple combustion, how it is achieved, theory and design, thank you
Sept 15, 2018 7:13:40 GMT -8
wiscojames: I'm afraid you won't get a response to such a vague question - I suggest reading through some of the threads related to your questions before asking for an explanation. People will be very generous with their knowledge if your question is more specific.
Sept 18, 2018 4:48:00 GMT -8
daniel: in my experience as I am working now on something of that nature, I have thought of making a heat exchanger and distributing the heat through vents using a slower fan. Now after a few years I realize that mass heaters give out primarily radiant heat, for
Nov 30, 2018 12:48:38 GMT -8
coastalrocketeer: Anyone posting in this shout box... if you have something you want people to see and respond to, create a thread in the appropriate forum section... this is not the place...
Dec 16, 2018 18:10:49 GMT -8
vesuvius: High Temperature Glass options,
Jan 4, 2019 16:28:17 GMT -8
vesuvius: Do any of you have experience with using the glass from home oven doors on a rocket stove? I'd like to have a viewing port on my stove but don't want to fork out for new ceramic glass. Any thought as to whether it would take the heat of a rocket stove?
Jan 4, 2019 16:30:40 GMT -8
yaya: you dont need the blowair for that temp..
Jan 13, 2019 16:43:57 GMT -8
flybywire: Glass window from an old washing machine is designed to take high temps. Cheap solution to your need.
Jan 27, 2019 0:10:58 GMT -8
coastalrocketeer: Anyone posting in this shout box... if you have something you want people to see and respond to, create a thread in the appropriate forum section... this is not the place to have a discussion... it is for short announcements
Feb 7, 2019 0:11:23 GMT -8
coastalrocketeer: you won’t likely get replies to questions here, and it is not a spot that makes holding an ongoing discussion possible...
Feb 7, 2019 0:12:22 GMT -8
TexasGonzo: Sooooo glad I found this site! Its always rewarding to find such a super group of folks! To any and all, feel free to PM me anytime. Thanks for having me!
Mar 11, 2019 18:56:41 GMT -8
jlmtech: GADGET: CONSIDER USING A JET PUMP INSTEAD OF A BLOWER FAN TO INDUCE DRAFT; NO CLOGGING.
Mar 26, 2019 8:19:28 GMT -8
michaelegan: i am unable to open the sketchup files on my mac. I used sketchup a few years back but apparently the company now requires a subscription. does anyone have any advice/instructions on how to use the program or how to view pictures without spending money?
Aug 20, 2019 18:41:48 GMT -8
mannytheseacow: michaelegan: download AutoCAD student version for free... import .SKP
Aug 23, 2019 13:33:44 GMT -8
topbaza: hi everyone, been searching all over net and this is were i need to be i think!!
Sept 28, 2019 6:16:25 GMT -8
anounaki: Hi, why I cant upload photos when I make new tread to this forum?
Feb 28, 2020 2:09:40 GMT -8
ahansen: photos under 1 mb not possible?
Jun 4, 2020 0:09:21 GMT -8