aczlan
Good Morning!
Cold weather diesel is either #2 diesel cut with #1 diesel, or #2 diesel cut with kerosene.That was my first thought. Diesel + gas = cold weather diesel?
Using gasoline instead is rumored to work, but I would highly recommend against it if you using any engine that has emissions hardware on it.
It could probably be used in a heater such as this one but I would probably avoid it unless I was certain it could be mixed properly through the whole tank and wouldn't separate, the slug of gasoline going through would make for a exciting experience.
Aaron Z