This is the questionnaire that we intend to use to gather user feedback around the TLUD Gasifiers. The questionnaire is designed to be administered in two phases. The first phase - the Baseline Questionnaire - will be administered to the user before the stoves are placed with them. This is to establish the baseline fuel consumption. The second phase - the user questionnaire - will be administered to the user after the stoves have been placed with them and they have had a chance to work with the stoves for at least 4 weeks.