I posted what is below this back on 01/29/2006 in my Modified Xtreme Stove thread. I had been able to buy 3 of the adapters at $15 each from Coleman. I don't know why they sold them to me that cheap.
It is almost funny that a "Review" is now coming out on an item that is going on 2 years old.
I am sure it will be up to Rogers high technical standards and give us all something interesting to read.
My short (spin = opinion) on this gadget is that I would not waste my time or money on one. Every time I connect it to the control valve it scratches my finger. The edges are sharp but I guess you could file the sharp edge a bit and do two things. Keep it from scratching your finger and lighten it a bit.
The Xtreme with the PowerMax Canister is hard to beat in really cold temperatures if you don't like using a liquid fuel. But adding the extra weight of the adapter to use the Xtreme in warmer weather seems a no-brainer. For warmer temperatures there are many very light stoves to pick from.
After I lightened my Xtreme stove I just designed my own version of a very light stove to use the PowerMax Canister. I also have an adapter that will allow me to use the PowerMax Canister on several other stoves.
NEW ADAPTER EXPANDS FUEL OPTIONS FOR X-STOVE OWNERS Coleman® Exponent® X-series stoves are getting new fuel canister alternatives. The ingenious Powermax® Fuel Adapter allows any X-stove to run on conventional, more readily available butane-propane fuel canisters. That gives traveling adventurers the option of powering their stoves with either Coleman’s proprietary Powermax fuel or standard, threaded butanepropane blended canisters.
The innovative new adapter also effectively converts the LP canisters into a liquid-withdrawal fuel system to mimic the performance advantages that the Powermax system and X-stoves delivered – namely consistent performance throughout the life of the fuel cartridge including strong performance at higher altitudes and in below-freezing temperatures. The Xstoves broke important performance barriers often associated with butanepowered stoves and conventional vapor-withdrawal systems.
The lightweight aluminum adapter attaches to an X-stove fuel connector and two swing-out legs provide a stable platform for the fuel canister. In a 180-degree departure from standard usage, the threaded butane canister is inverted and attached to the adapter upside-down to allow a liquidwithdrawal method of fuel-feed to the burner. (Historically, LPG canisters of butane or butanepropane blended fuel used in conventional upright position rely on vapor withdrawal. There is pressure inside the canister. When the stove valve is opened, it allows the vapor to pass to the burner for combustion. Colder temperatures decrease pressure and degrade performance. A liquid withdrawal system draws the blended fuel in liquid from the pressurized canister, carries it via a copper fuel tube to a regulator that passed above the burner, which heats it and converts it to a vapor before feeding the vaporized fuel to the burner. The system results in reliable performance when temperatures drop below freezing, and it is less affected by altitude than vapor-withdrawal systems.) The Powermax Fuel Adapter will be available for the ’06 season with an MSRP of $23.
The following is my comment on this product:
This adapter should open up a lot of possibilities for the MYOG folks. A comment has been made that it looks a bit over engineered. They should have asked us to help. The price is right and I hope to get one as soon as they are available.