Poelito, a rocket mass heater for mobile use. Semi-dismountable

Mobile and mass is impossible to combine, right?
Not if you remove the mass (sand) and travel light.

Seems really well thought, and the cooking area with glass-ceramics is the best I have seen.
http://lowtechlab.org/wiki/Poelito_-_Po%C3%AAle_de_masse_semi-d%C3%A9montable/en

Open source, Creative Commons stove for caravans and mobile homes.