After a 2 day backpacking trip a friend I and took last week we decided we really needed to come up with a cheap and efficient way to heat water for that all important coffee and to a lesser extent food 
We were going light so only had a cup, pot and spoon each (in fact we shared my cup) When we were cooking though, positioning stuff on the coals so that it was getting good heat and not starving the area of air was a problem. Afterreturning and a bit of thought I welded up three 'T' shaped stakes that I will arange in a tri angle and sit the pot/cup/kettle on that. I figure this will make maximum use of the available heat without starving any of it of air.
What do you guys do to heat a container of water over a fire if weight and space are an isssue?

We were going light so only had a cup, pot and spoon each (in fact we shared my cup) When we were cooking though, positioning stuff on the coals so that it was getting good heat and not starving the area of air was a problem. Afterreturning and a bit of thought I welded up three 'T' shaped stakes that I will arange in a tri angle and sit the pot/cup/kettle on that. I figure this will make maximum use of the available heat without starving any of it of air.
What do you guys do to heat a container of water over a fire if weight and space are an isssue?