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THE CAT FOOD CAN ALCOHOL STOVE
(A Lightweight version of the Tuna Can Stove)
Roy L. "TrailDad" Robinson
The original tuna can stove hiked with me along the Pacific Crest Trail last year (1999) for over 1500 miles, from Donner Pass near Lake Tahoe to Manning Park, British Columbia. It served me well for almost three months, heating water for soup, cooking dinners and warming the occasional morning cocoa without any problems or failures.
This new, lightweight version of my stove was introduced at ADZPCTKOP2, (i.e., the Second Annual Day Zero Pacific Crest Trail Kick Off Party,) at Lake Morena. It wasnít the prettiest or the lightest stove there but it did boil one cup of water the fastest Ė in 2 minutes, 24 seconds. Like the original tuna can alcohol stove, it will bring two cups of water to a boil in about 5 minutes, has no moving parts and will fit inside your cook pot. Unlike the original, the new cat food can stove weighs just 1.6 ounces including the stand and windscreen. To save space, letís just call it the Cat Stove.
The drawing above shows the three parts of the stove. The Burner is made from a 3 oz. cat food can and the Air Jacket is a 5.5 oz. cat food can. 2 x 3 inch welded wire screen is used to make the Stand. The aluminum foil windscreen is not shown in the drawing.
PHOTO 1. Required Materials.
MAKING THE BURNER:
PHOTO 2. Air Jacket (left) and Burner.
The window screen can be removed after the stove has been used once or twice. If you prefer, you can burn a couple tablespoons of fuel in the burner now, and then remove the screen.
MAKING THE AIR JACKET:
Cut a 1.75 inch diameter hole in the bottom of the larger can and six tabs from the outside in around the edge. I cut a hexagonal hole in my stoves for no reason other than itís easy. You can see this in Photo No. 2. Use a large church key to cut the tabs if you have one.
ASSEMBLING THE BURNER AND AIR JACKET:
PHOTO 3. Wind Screen and Stand (left), with the Burner and Air Jacket in Position to Assemble.
MAKING THE STAND AND WIND SCREEN:
The completed stand and windscreen are shown in Photo No. 3. Approximate dimensions for the stand are given in the drawing on page 1. Bend the wire into a diameter that will fit inside your cook pot and a height that will hold the pot about 1 inch above the burner/air jacket.
The windscreen is critical for proper operation of this or any alcohol stove. Cut the windscreen out of heavy aluminum foil. An oven liner or disposable baking pan is a good source of foil. Cut a rectangle that is wide enough so the pot handle will just clear the windscreen, and long enough so it will encircle the pot with about ľ to Ĺ inch of clearance. Mine is 3.75 x 22 inches. The screen must come up around the sides of the pot. If your pot handle wonít allow that, cut a notch out of the screen for the handle.
Punch two rows of holes around the bottom edge of the windscreen. A paper punch works well. I use a ľ inch canvas grommet punch. Bend the foil into a cylinder and hold the ends together with paper clips. (Carry a couple extra paper clips. If you drop one in camp, itís hard to find.)
The windscreen can be rolled around your fuel bottle when not in use. I keep the bottle and windscreen rolled inside my sleeping pad while on the trail.
PHOTO 4. The Cat Stove in Operation.
Caution: In bright daylight, you may not be certain the stove is lit even when itís at full heat. Be careful you donít find out the hard way by getting part of yourself or any burnable material too close to the stove while it is burning.
This is an ALCOHOL stove. DONíT USE WHITE GAS, COLEMAN FUEL OR ANY OTHER GASOLINE FUELS IN THIS STOVE!
06/19/00 Update: How to add a Simmer Ring to the stove.
If you have questions or suggestions for improving the Cat Stove, please send me a note at: firstname.lastname@example.org, or write to the address below. Good luck to you on the trail!
Roy L. Robinson
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