I have a Cleevedon steam gas tank. here in Canada there are no butane refill tanks that are the same aa those in uk. the top of the refill does not have a thread to screw the refill adaptor to.the best I have come up with is the end of stove burner.to say the least this is a pretty iffy way of doing this. has anyone run into this and if so how did you over come it.