[Stoves] low density bricks for rocket stoves

[Larry Winiarski]

Dear Tom and friends.

Could you folks post some reminders or discussion to the stove lists about
how important it is to the performance of the rocket stoves to use low
density bricks when the rocket stoves are made from bricks?

Good insulation and low thermal mass are key factors in getting best
performance. Large pot institutional stoves with good insulation and gap
spacing can get efficiencies in the 40 to 50% range.

Sometimes circumstances in the field will force us to make compromises but
we should encourage and promote the best technology available.  Ken has
shown that it can be done in the poorest situations if we work at it!

I will have difficulty accessing a computer so I am hoping you guys will
post this for me.

God bless
Larry