That is a good question, one that I have never bothered to find out. Seems to me that the little 533 1-brnr stove was one of the first true duel fuel stoves that Coleman started to market, around the late 80s perhaps starting in the 90s but I can't be sure, followed quickly with the suitcase models. The earliest that I have been able to find out is around 1993 but they may have come out sooner than that. I just don't know. Hopefully, someone can chime in with some more info. Perhaps one of us can write Coleman to see when they started marketing duel fuel stoves. Sorry I couldn't be of further help.
My 414 is stamped 12-89 at the bottom, so it would have been an early dual fuel one then. Maybe this also explains the extra ribbed part on the generator, possibly deemed necessary to fully evaporate car-fuel. As I have learned from this post, later models don't have this so they must have come to the conclusion it was not really needed. Regards, Wim
I didn't mean to imply that the newer models don't have the gen rings; I've not seen any Colemans up close other than those which are in my family. I assumed that my brother's 428 was an oddity for not having them.
I just bought one of these and, like you, could not find anything about this model. Mine had 4/90 on the bottom, but otherwise identical to yours. Even went on some Coleman international sites but no luck finding it or a manual. I searched with the date and stumbled upon a Japanese site that was selling a well used model with the same name as you and I have. I found it at http://outdoor-cat.seesaa.net/upload/detail/image/DSC0001-thumbnail2.jpg.html I did send in a email to Coleman to see what they knew and if they can confirm the model number and that it is essentially identical to the model that has 'dual fuel' on the label.
Hi Carlsone, looks like yours has been used a lot more than mine! I've used mine last week when our granddaughter stayed with us and camped in our garden. I found the plastic pumpcap is not working very well anymore and plan to replace it with a proper leather one. Other than that, I've not had any problems at all with this one, very reliable working horse it is! It is run on panel wipe or Aspen4 only, no car fuel as this will shorten the life of the generator and gives nasty fumes aswell. Regards, Wim
