Stovepipe Power: Using Waste Heat

If you've been thinking about ways of using waste heat from you cookstove rather than letting it escape, here are a number of suggested stovepipe modifications to make it possible.

stovepipe power fig 7, fig 8
FIG 7: A  proposed concentric double stovepipe in which the inner pipe is an intake drawing exterior air and the outer is an exhaust pipe that warms the inflow. FIG: At the stove end of a concentric pipe design, the intake should be routed through the bottom of the firebox into the ash box chamber.