Book Corrections

[canyon]

Say Donkey, could you please share more about the feed tube size mistake in the book (6" and 8" difference) that you've referred to in other threads? It would be good to get clear what is actually appropriate for what size rocket. Thanks!

[Donkey]

Just that Ianto's 16 gallon barrel over the feed, using the bung hole from it's lid for air trick, has ALWAYS been used on 6 inch stoves.
It was included in the book, though the stove model used (in the book) is 8 inch.

So, the bung hole from the lid of a 16 gallon barrel has shown itself to work as an air intake for 6 inch rocket stoves.

[canyon]

OK so it is only that the air volume of the bung hole is appropriate for a 6" system not anything about the size of the feed tube itself. Thanks for clarifying that!

[northriver]

There is a conflicting diagram in 'Rocket Mass Heaters' (Second Edition from 2006).

On the diagram labeled 'Dimentia and Proportia' on page 35 the dimension E is shown to start at the top of the fire tube . In a later diagram on page 38 it starts at the bottom of the feed tube and this is also what it states in the text on page 36.

Not sure how big a difference it will make, but I assume the diagram on page 36 is accurate?

[hpmer]

Good question. I've always thought of it from the top as that, to me, is where the heat riser starts and the section below I've associated with the burn tunnel. Would be good to clarify, though.