SustainTech India Pvt. Ltd. (SIPL) is reaching out to the needs of a fuel stressed segment of society – initially the street food vendors, who operate on push carts and where cooking is done inside the cart or on railway platforms, roadside shops and small hotels who with a roof and some seating capacity.

A survey conducted shows that these stoves are in operation for about 10 hours every day and each unit caters to about 100 clients every day. The 65,000 fuel efficient wood burning stoves (considering only the tava, frying stoves and tea kettles) that would be sold by SIPL in the first five years would therefore offer a safer, cooler and healthier working environment to at least 65,000 cooks and 6.5 million people who would eat around these stoves every day.

Context and problems with LPG

Micro and small establishments that provide boarding services to 40 – 100 individuals in rural and semi-rural areas face the three pronged problem of not having the access, both financially and in terms of availability , to LPG, having to incur the costs of large amounts of biomass required to run their relatively inefficient stoves and dealing with the associated health impacts that inefficient, outdated stoves generate.

Unlike small households, micro and small establishments rely on purchasing fire wood and not on collecting biomass. These costs average around 2000 Rs. / ton. As such the inefficiency of stoves used by this category of users has a direct impact on their expenditure and thus on their income and savings.

Burning wood creates CO2 and other greenhouse gases. Establishments, based on size, generate between 20 – 80 tons of CO2 a year. While small when considered at a national or global scale, this contributes to climate change in its own way.

Research conducted by SustainTech India Pvt. Ltd. claims that the Biomass Cooking stove is an application specific high efficiency wood burning stove specifically designed for a range of cooking needs. Where results show that they are up to 50% more efficient than conventional stoves resulting in savings on fuel costs and help to reduce health impacts from indoor air pollution. SustainTech India Pvt. Ltd. also claim that the stove offers features such as:
  • High efficiency because of controlled burning, good air fuel ratio
  • Ability to regulate air supply and hence the fuel burning rate
  • Use of grate for good combustion
  • Good insulation and a uniform temperature profile across the plate because of staggered finning of the tava (flat plate). This has been designed so that one side of the tava uses preferentially radiative heat and the other side convective heat obtained by burning of wood on a grate.
  • Increasing the velocity of the flue gases towards the end of the plate, good insulation and an optimally designed chimney.

Who is impacted and how?

Owners of micro and small boarding establishments, including semi-portable food vendors are being targeted. This covers a range of individuals with daily revenues between 500 to 5000 rupees per day. A market survey carried out by SustainTech India Pvt. Ltd. revealed that the total number of tea shops, small & medium hotels and street food vendors to be 73,650 in the state of Tamil Nadu, India alone.

SustainTech India Pvt. Ltd. hope that in the first 5 year period, that use of the stove would save users Rs 4000 million in fuel costs.

Some of the stoves promoted SIPL are Pyro Kadai Pyro Tava and Pyro Tea Kettle.

For more details about these stoves click here

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