Monatauk Gnat

At a mere 1.6 ounces, Monatauk Outdoors’ minuscule Gnat stove is touted as the “world’s lightest production camp stove.” It is made of titanium and has an aluminum base. The stove works with butane canisters and is targeted at backpackers hoping to shave any extra weight.
Gnat Camp Stove.jpg

But heat output is not compromised. The stove is rated at 11,000 btu for heat output, and the company says it can boil a liter of water in less than four minutes. Its size is about 2.25 × 2.25 × 2.5 inches folded up, and it comes with a hard plastic case for storage.

Specs:

11,000 BTU
1.6 ounces (48 grams)
2.25" x 2.25" x 2.5" (folded)
3" x 3" x 3.25" (case)