Peter Ellis : Dealing with your last sentence 1st, if you are committed to a
Rocket Mass Heater R.M.H. in your future then let me strongly advise you to go 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 with as much
Rocket Stove / Rocket Mass Heater Family information !!! ( and I dont make a dime!)
The use of Perlite and Clay Slip to make an insulated Heat Riser / Internal chimney is a recent improvement over most types of refractory 'fire' bricks, and certainly
how I propose to build my next R.M.H.
All of the stove pipe buried within the R.M.H. / Thermal bench should be considered to be
a sacrificial form around which your
cob, your Perlite And Clay Slip are
placed and a few bricks are stacked . As such we do not care whether they last weeks or years, here we can go with the cheapest grade of thin wall piping we can find,
the lighter the better, galvanized pipe having no inherent advantage !
For what we are trying to accomplish Ceramic flue pipe has limited advantages. If we try to start our R.M.H. up after we have allowed the whole house and the Rocket
to get cold, there will be sections of our ceramic material trying to come up to Temperatures in excess of 1500 F, while other parts of the ceramic pipe are still at room
temperatures or colder, This can cause catastrophic failure of our ceramic tile !
Many people add-on a Green house on the southern axis of their property, treating the combined wall as a Thermal mass heat storage/.Tromb Wall opportunity and are
very happy with just a simple sliding door between the two attached buildings, You will probably find that there are major periods of operations where your
greenhouse's
humidity is higher than you might like it in the house, this depends a lot on location, climate and how you use
water in your green house which again goes back to
regional preferences!
Because of the R.M.H.s appetite for small very dry
wood for maximum efficiencies you will want to plan on Storing your wood for your R.M.H.s
Dragon Outside of your
Humid
Greenhouse, which can easily add 10% moisture content to 'tomorrows wood today' ! I know I have provoked more questions than I have answered, this is just
one of a series of steps moving you towards your
rocket stove build !
For the Good Of the Crafts ! Be Safe, keep warm ! As always your comments and questions are Solicited and are Welcome ! Big Al !