Post by josephcrawley on Nov 11, 2020 13:50:26 GMT -8
It has been far too warm to punish the people who live in the house with a fire. We did a very small burn after completing it but of course the stove was soaking wet. Fingers crossed they will have a fire on Monday. I will update then.
Post by josephcrawley on Nov 18, 2020 9:22:22 GMT -8
Stove is burning well. The door frame was wrapped in ceramic fiber paper but could have used a few more pieces on the top. Expansion of the frame which is about a 2mm at 500 degrees F has caused a crack to open in the brick joint above the box. Hopefully this will stay put now that the steel has shoved the brick up.
Also their are complaints of a slight smokey smell my nose could not detect (I believe my nose is rather desensitized) so we will add some feet of pipe to the top of the chimney to improve draft a hair.
Post by josephcrawley on Feb 17, 2021 15:24:53 GMT -8
Finally an update about this stove.
Today I added 6 feet of insulated pipe to the top of the masonry chimney. the house is located at the bottom of a mountain and has frequent issues with back drafting. This has occurred regardless or the stove attached to the chimney. Hopefully this will help.
The stove does not burn cleanly(visible smoke) with or without the bypass open. It clears some with the door slightly ajar and the bypass open. I followed DSR2 specs taken from sketchup drawing. The only alteration I made was the size of the airframe/door frame tubing to match what was available but did not go to a smaller cross sectional area.
I'm going to double check my measurements when I get a chance just to be sure I did not shrink something accidentally.
I observed the burn from start till large coals. The wood was split last winter and stored in the dry.
Post by josephcrawley on Feb 25, 2021 11:49:01 GMT -8
After checking that all ports and intakes were within spec I looked further afield and found the issue.
The floor channel was laid in a trough in the firebox floor in the usual way. Beneath the channel is a series of columns that support the firebox. These columns are not closed and were allowing air to come around the channel. This recirculated stove air was replacing the fresh air that should be coming in the the intake. I had originally placed ceramic fiber paper in this slot to act as a gasket but the channel was a loose fit to facilitate removal for cleaning. I cut a piece of tight fitting sheet metal to close of the slot from the rest of the stove replaced the floor channel and the stove performed as expected.
Next time I won't cheap out on firebrick and will lay a double layer solid floor.
During development of the original batch box rocket I tried the effect of EGR in a heater. This EGR is well known in the diesel engine world and stands for Exhaust Gases Regeneration. Some of the exhaust gases are fed back into the cylinders to create a leaner burn.
So I tried to fed some of the exhaust gases back into the firebox, later in the riser as well. As you found out, it won't work in a batchrocket heater like that, rather the opposite. The whole of the system is very picky about leakage and smokepath friction, by the way.
Having said that, I am relieved you found the culprit.
Last Edit: Feb 26, 2021 7:48:45 GMT -8 by peterberg
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
deadstarsstillburn: Hi there. I was directed this way by folks on the Permies.com website and am hoping I can get some information on how a total newbie can get started designing, siting, building, and not-dying-in-a-horrible-house-fire with a new RMH in a 160-year old home
Oct 21, 2020 6:52:10 GMT -8
deadstarsstillburn: The people over there recommended either a 6" batchbox or an 8" J-tube. I don't know what those are but am going to try to figure that out. What I need is a blueprint that I can scale to fit the need for my house. I have something likne 5000 square feet
Oct 21, 2020 6:53:00 GMT -8
deadstarsstillburn: but I do not need to heat all of it by any means. probably only need to heat half of that, maybe less.
Oct 21, 2020 6:53:15 GMT -8
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 firstname.lastname@example.org..... the photos in this post did not show up
Apr 14, 2021 8:32:00 GMT -8