World Stove Fan-Free Bi-Fuel PupStove

Specs

Adding fuel Top fill. Not batch driven, can add fuel while cooking.
Biomass feed rate 100g = 50 minutes of cook time
Alcohol 29 ml = 20 minutes of cook time
Weight 39.6 oz or 2 lbs 7.6 oz
Measurements 150 mm (height) 81 mm (widest point diameter) 60 cm (diameter center tube)

Where to Buy

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Manufacturer's Description

The PupStove is a bi-fuel fan-free stove with flame control and offers a carbon-negative cooking experience for car and motorhome campers. Sturdy, stainless steel construction, no assembly required. It can be used with dry biomass (pine needles, wood, etc.) or with any alcohol (ethanol, alcohol, vodka, etc.). It is also possible to add waste plant oil, such as sunflower seed oil, jatrovha oil or olive oil, to dry biomass for a 21% increase in energy. Using the PupStove creates biochar, which enriches the soil and sequesters carbon. This means that you can bury your biochar in the soil where you cook and leave it richer than you found it.

This is a low-cost introduction to micro-gasification which allows you to begin experimenting with turning biomass into clean, blue-burning gas.