A butane camp stove, about $15.00
12 cylinders of butane about $18.00
My morning coffee, Priceless!
The stove measures 13" x 10" x 3" and comes in a hard plastic carrying case. It puts out 10,000 Btu and uses 5 oz per hour. The butane can fits into a compartment on the right hand side of the stove. The cans cost about $1.50 each and are 8 oz. Turned on high, the burner will boil water in about 5 minutes which means it is using about 1/10th of an ounce each time I make coffee. That is 80 pots of boiling water per can or about 2 cents each time. Quite a bargain!
Even though Dod has a full-capability kitchen area, weather permitting, I prefer to cook outside on the grill and this little burner works great for cooking veggies or frying potatoes!