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Hi,

Does anyone know if copper bottom kettles are much better than normal kettles for boiling water on a campinggaz stove?

A Normal kettle is about a fiver, a copper bottom one is £29 so it would have to be much better, at least twice as fast to make it worth while.

yeah the idea is Copper is a better inductor (or is it conductor) of heat, so the heat spreads better and faster so the water heats up faster. (Got O'level Physics me!)

Its just how much faster? £20 faster ?

Thermal conductivity aluminium 250 W/(mk)

Thermal conductivity copper 400 W/(mk)

Thermal conductivity stainless steel 16 W/(mk)

Obviously stainless steel is by far the worst performer, which is why many stainless steel pans have a copper bottom.

Copper is 1.6 times more conductive than aluminium, however that is only a coating so you would still have to consider the conductivity through the rest of the kettle.

Sorry, running out of steam at this point.