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Spruce Stove burns one long log, a bit at a time

•, By Ben Coxworth
 What isn't so much fun is subsequently sawing the logs into stove-length pieces. With the Spruce Stove, however, you don't have to – you just continuously feed one long log in as it burns, sort of like feeding a pencil into a pencil sharpener.
The stove was created by Dutch designers Roel de Boer and Michiel Martens.

Users start by placing a log (a section of tree trunk, really) on the adjustable-height support stand, then pushing it into the cylindrical stove – presumably a small fire has already been started in there, using kindling. Once the business end of the log is in, a steel diaphragm is closed around it. From there, users just periodically push the log in a little farther, as the end of it burns away.

The stove itself features fireproof concrete bricks on the inside, to absorb and radiate heat. It also has steel fins on the outside, to increase its heat-radiating surface area.

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