200 households in the North, East, South and West areas of the KN-District were selected for participation in the study. The study households randomly selected to one of four groups:
* Control Group
* Given two locally-made rocket stoves
* Given two gasifer Philips stoves
* Given one locally made stove and one Philips stoves.
Based on feedback from initial surveys of stove use and testing in the field, a rebar stand was designed and provided for all Philips stoves. This stand provides more stability for the stove.