my question is, the commercial j- tube that comes with the kit could there be a base plate made out of the same material as the fire tube and heat riser to prevent the damage to the fire brick that was witnessed in the video ?
Sean Thurston : Reading between the lines and guestimating, I think you are talking about the Experimental model that Was Shown in the 4 set Rocket Mass Heater RMH D.V.D. ! This was an experimental model that -had it worked perfectly, would just now have gone through enough further testing to be available on the Market.
Ernie and Erica Wisner, who are the Moderators for Our Permies RMH and Wood stove Forum threads, Had the Idea that they knew how hot this Model of RMH would
get, and wanted to surprise Paul Wheaton. Surprise, Surprise, every one was Surprised !
If you go to ernieanderica.info you can scroll down the lefthand side of their house page and see Shop for Plans, These are all Tested by Ernie and Erica
and independently tested in many other U.S. and Canadian places and Can be considered up to date in that the only thing truly missing in these models are the Very
Expensive Ceramic Blankets that do not make the RMH one bit better at burning efficiently, only in reducing the start-up to full running Times.
For the units offered by Ernie and Erika at this site, there is no way to duplicate the overheating conditions if installed following their detailed instructions !
A couple of recommendations :
If you scroll down on their home page you will see a section " Our Friends and Allies ", farther down you will see a chance to click on www.rocketstoves.com this will take you to a new site where you can download a PDF Copy(s) of the Brand New 3rd Edition of Ianto Evans' Great Book "Rocket Mass Heaters"
With over 100,000 Rocket Mass Heaters Constructed World-wide, most were made from "The Book'', and 95% of all the 1st time Builds (that worked ) came following
the precepts of his book !
There should be a Box for a Discount code of 25%, the code word is Fakeboob !
Near the bottom of the 'Our Friends and allies' there is a click on for VillageVideo.org from that new site you can click on the You Tube Emblem, and be delivered
to the You tube Villagevideo page The 1st grouping of Video clips is one labeled Rocket Mass Heater Scenes click on the Play button to its right to download and
play the 1st 3/8ths of a Professional Grade Instructional D.V.D Showing Ernie and Erica Constructing a RMH From one of the sets of plans from their site !
Think like Fire, Flow like a Gas, Don't be the Marshmallow, As Always, your Comments and questions are Solicited and Welcome ! For the good of the Crafts ! Big Al
Success has a Thousand Fathers , Failure is an Orphan