Hello and good day to you all.
Having recently completed a rocket mass heater to to specifications of "the Bonny" plans by Ernie,i realise that a bigger (larger diameter) fire feeder tube is needed for the purposes i require. Although the b"bonny" uses a 8 inch tube system,i have had to use 140mm tubing (+/-) 6 inches diameter some the fire feed tube is the same. My question is ,what is the maximum diameter to which i can increase the diameter of the fire feed vertical tube? If anyone has done this type of adaptation ,or knows the dynamics of this ,i would sure appreciate your input before i go cutting my stove about..
Martin Jackson : I second Jay's suggestion, Ernie and Erica Wisner have to assume you have done your homework when you buy their plans, an 8 inch system
should be 8'' Inside diameter everywhere, to give you the Constant Cross Sectional Areas through out your build, ''The Book" Jay is referring to contains the
simple instructions to Allow you to figure this C.C.S.A. out for yourself.
There is also help with understanding the Ratios of Depth of Feed tube, to Length of Burn Tunnel, and Height of the Heat Riser!
Rocket Mass Heaters, 'The Book', mentioned here is also a valuable source for quickly learning the vocabulary of our little craft, making sure that when a
Fellow Member comes here with a question or comment on an observation, that he is using the same words to describe the same Part/section, its size, shape, and
orientation to its self and other Parts/Sections ! The $18. cost of a PDF Copy of 'The Book' would have saved you from this basic mistake, saving you time, money
and frustration ! Once you have a more thorough grounding in the fundamentals, you can come here 24 / 7 and expect to find Help from your Fellow Members !
For the Craft! Think like Fire! Flow like Gas! Don't be the Marshmallow! As Always, Your Comments and Questions, are Solicited and Welcome! PYRO - Logically Big AL!
Success has a Thousand Fathers , Failure is an Orphan
LOOK AT THE " SIMILAR THREADS " BELOW !
posted 5 years ago
Thanks for the advice folks. Maybe i can get upto speed now ?
Die Fledermaus does not fear such a tiny ad:
Heat your home with the twigs that naturally fall of the trees in your yard