The Ultralight Titanium stove from Esbit is probably the lightest stove on Earth. Using solid fuel, it is great for a survival kit, or for boiling small amounts of water when every ounce counts.
Weighing in at only 11 grams and made of unbreakable titanium, this stove is a no-brainer addition to your outdoor supplies. Uses Esbit dry fuel (not included).

Prop 65 E (Carbon Monozide): This product can expose you to chemicals including carbon monoxide, soot, and other combustion by-products, which are known to the State of California to cause cancer and birth defects or other reproductive harm.