Rocket stove

This was a major development of the traditional oil lamp, which introduced a glass chimney above the flame to increase air-flow.

"[3] Larry Winiarski, Technical Director of Aprovecho, began developing the rocket stove in 1980 based on a VITA stove, designed by Sam Baldwin, and rediscovered the principles of the systems developed by the Romans in hypocaust heating and cooking systems.

Aprovecho rocket stoves were sold in Lesotho, Malawi, Uganda, Mozambique, Tanzania, and Zambia.

[7] Many developing countries use traditional wood fuel stoves without proper ventilation, which produces indoor concentrations of smoke particles "typically 10 to 100 times the long-term levels recommended by the World Health Organization.

In rural Kenya, a comparison of traditional three-stone stoves and rocket mud stoves (RMS) showed that RMS use resulted in a 33% reduction of carbon monoxide production in the kitchen and a 42% reduction in "personal" carbon monoxide production, which was measured with data loggers placed on clothing.