Diane Monteil : This is where I ask if you have been to cobcottage.com to get your PDF Copy $15
.oo of Evans' and Jackson's Great Book
'Rocket Mass Heaters', There is
STILL
No other book in any language that contains more
Rocket Stove, Pocket Rocket, And
Rocket Mass Heater family information ! ( And i don't make a dime ! )
The fire brick Contains and insulates the fire, allowing for a more rapid creation of the Extremely high working Temperatures that creates the clean burn of the
Rocket Mass Heater
R.M.H., The Castable Core as presented in the two videos, will work and will deliver nearly as Hot Exhaust Gases through the combined Feed tube, Burn Tunnel. and base of the Heat
Riser! There the next Castable section the Heat riser will deliver the hot exhaust gases to the barrel ( where the
'magic' occurs that makes an under $300.
oo R.M.H.
perform like a $30,000 Masonry
Wood Stove !)
It is from this point on that the Cob comes into its own. Out of simple Cob you create the leakproof shell and sealed system That delivers the hot exhaust gases to the horizontal pipes
that deliver the exhaust gases and their Heat
Energy to your Thermal Mass !
From the base of your R.M.H. which if not made out of cob requires the laying up of brick to channel your hot exhaust gases ( Both work, which is in your skill set ?! ) And through
the Thermal Mass. The cob carefully shaped around your horizontal pipes serves as a near perfect heat transfer medium, and at the same time protects the stove pipe against
collapse and also makes a second seal against the penetration of the exhaust gases, again the only other possible material to create the horizontal piping through the thermal mass is
laid up brick, which will not transfer the heat energy as effectively, sending more of it up the chimney !
Cob is a wonderful and dirt cheap -pun intended- to accept and transfer Heat Energy through itself to the surface of the Thermal bench and your bum ! It does however transfer and
store that not as well as denser material like rock, the denser the better !
Here we are going to talk about the Utility of your Soapstone not its Beauty, because of the mechanical characteristics of this rock it contracts and expands much less as it cools and
heats up, and resists heat stress much better than, and at higher temperatures than Iron or Steel. Because of these characteristics everywhere is a good place for the soapstone !
I personally would make a Sketch up of my Thermal bench using the Soapstone as 'dressing stone' on the sides and possible back of your thermal bench burying lots of other common
stone deep in your cob, and save any left over Soapstone for trading materials rather than burying it out of sight !
This will give you a good start, Read 'The Book' and come back here often ! Big AL ! As Always your comments/questions are Solicited and are welcome ! A. L.
heat