Post by matthewwalker on Nov 9, 2017 17:24:33 GMT -8
Hey gang, I've been building these doors and parts using ceramic fiber for a while now. I've settled on some methods that work well for me, and it's time I shared where I'm at so far. Here's a new vid covering some ways to build doors without too much fuss, using ceramic fiber board and metal skins. I use aluminum, but one could easily form some steel from a barrel top or similar around the board and have a nice door. I go over my dampers as well, which are laughably simple. Coat hangers through a chunk of board! Works great. Hopefully you'll find something you can use here.
Post by esbjornaneer on Dec 7, 2017 6:13:42 GMT -8
Hello Matt, another great video of yours. Just a couple of Q's: In the FB door how do the rivets hold the ceramic fibre board? Do they go all the way through, I did not see? In the oven door, did you just sink the washer on the inside of the ceramic fibre board to accommodate the kength of the screw or does that serve any other purpose? How long would you expect the coat hanger baffle arrangement to survive at the front end (away from the port) of the upper/second shoebox of Peter's new DSR? I was thinking further from Satamax's and my comments (both 5th Dec) about the option of having the DSR core supplying an oven on one side and a hob on the other of the second box, and how to keep the heat in the oven during the ember phase. (I have to take time to learn Sketchup so I can show things more clearly.)
Post by matthewwalker on Dec 7, 2017 6:53:11 GMT -8
Thanks Esbjorn. The rivets are all the way through, and have washers on the ceramic board side that give them some hold. Yes, the oven screws were too short, so I sunk them in the board a bit to get enough thread.
The coat hanger should hold up forever. Keep in mind the gasses are quenching on the glass top right after the port, so temps will be cooler than we usually blast at our barrel tops and other parts. It will be fine. Hope that helps!
Post by esbjornaneer on Dec 7, 2017 7:06:07 GMT -8
No thank YOU Matt, Max's suggestion was to have the whole of the 2nd shoebox insulated (roof too) so no cooling until entering an oven instead of the switchback of the Allerton Abbey cooker. He was suggesting that the temps would be close to the same temp as the gases enter the oven on the side. Instead of retelling the story, here is a link to the page containing both comments. Max's is about 1/3 down the page quoting docbb. Mine is the first after Peter's following Max's. That means the temps would still be high in the area I am suggesting one could select via baffels to direct the heat to oven or cooking hob... Ahh. I just thought that it might be possible to have the baffles on the other side of the oven/hob instead of in the 2nd shoe box! Thank you for supplying me with the info to get that idea!
Post by esbjornaneer on Dec 12, 2017 10:28:32 GMT -8
Thoughts are returning to the damber being in the 2nd shoebox but hiding the metal inside the board/damper. Hope it works. I may make a mock-up with a piece of polystyrene I have lying around to show.
Would you be happy to supply a picture/drawing of how the door frame works? I think I got the way you do the top/lintel are the other parts with the flat bit towards the bricks too or is there anything 'grabbing' the bricks?
Post by matthewwalker on Dec 12, 2017 12:55:18 GMT -8
I'm afraid I don't entirely understand what you are asking Esbjorn. The door frame is simple. I use steel angle fastened to the bricks of the opening with masonry screws. That creates a lip that I can mount the door flange to.
There is no mechanical grabbing of the bricks beyond the fasteners through the steel angle.
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
belgiangulch: Photo's are possible. They must be downloaded elsewhere and the image url (adress) is copyied.
Sept 14, 2020 7:26:15 GMT -8
belgiangulch: While creating a thread click on the small picture in the banner above the reply. A box pops up, paste the image url in the box. Pay no attention to the huge list of numbers and such.When you finish and hit reply your post with pictures will come up.
Sept 14, 2020 7:29:27 GMT -8