Sorry Blast I don't have a Swedish mess kit so I don't know. I was kind of curious about the WBS before ordering because I couldn't locate dimensions or much of anything about it. Right now I reckon the WBS weighs maybe a shy ounce, the aluminum windscreen and aluminum 'groundcloth' (a square to protect what's underneath from the heat of the stove) maybe 2-3 more ounces. (I will go home and weigh these for an actual weight). Heat output was pretty healthy, don't know the BTUs, but alcohol created enough heat to feel it very hot about a foot above the WBS when I took the kettle off. I filled the neck of the stove up with fuel about 1/4 inch from the top of the allowable fuel area (before the neck of the stove widens), and that was about twice as much fuel as I needed to boil 2 cups of water in about 4 minutes. If Bill from MT wants to provide some details and dimensions that may be better than me, and saves me from hauling out a camera and producing a full review. As I said, I've only boiled water for tea in this so far, but from the design I reckon if I were using dirty alcohol and gummed up the works a bit, the stove appears to be field serviceable with something that I usually carry in the field (pipe cleaners and a knife). Impressive amount of heat for the fuel I used, which tells me it should make a decent freezer bag meal this weekend when I'm out with my son.