Biomass briquettes and pellets
The smart stove needs less attention and total cooking time is reduced by about 30 minutes per day - as it is mostly women who do the cooking in India, this gives women more time back in their day.
Improved cleanliness is rated highly, women say their skin and hair feels cleaner, and their kitchens and cooking pots need less cleaning.
Health benefits like fewer sore throats and not getting sore eyes are obvious to the users of the stoves, and their life expectancy is also increased because they are inhaling less smoke.
Fuel wood is collected in many households, usually by women or girls - the smart stove saves them around two or three hours a week by not having to collect as much.
Wood costs around US$.08 per kg, meaning a household typically saves around US$90 per year. This is significant since household income is typically only US$1,500 per year in the areas the stove is sold. It means the price of the stove can be recovered in around 14 weeks.
Write your answers in a word document or use pen and paper. For more information and research see here.