"Calvin Sambrook" wrote in message
...

I recall once camping in South Wales in December with a university
canoeing club where the butane cylinders we were using were only producing
a tiny flame. We balanced one on top of the other to heat it up and make
it useful...

For the tiny camping ones, putting the cylinder in the pan of water you're
boiling works well. And aren't lots of them propane/butane mix these days?
'course a petrol stove works whatever temperature :-)

I remember similar games with butane cylinders in static caravans (cheap
caving accomodation) - fortunately they had an electric kettle, so boiling
water on the cylinder was used to great effect.