Quite frankly, the idea of having any type of electrical device in the shower with me is scary. Especially if it's 240. Wouldn't it be just as easy (and safer) to mount one of those small 5-10 gallon electric water heaters in the attic, above the shower?
[This message has been edited by noderaser (edited 03-08-2007).]
My "favourite" are electric tankless water heaters... *shudder* 400V 3x35A, 21kW...
A pressurized electric storage tank would probably the most comfortable option where gas is not available. The classoc 5 or 10l open electric tanks (the ones that go in our hardware stores for €27.90) are pretty useless for a shower and the matching faucets pretty much even out any price difference. We have one of those on our workshop sink... I still want to strangle the unknown person who replaced the old gas-fired Ascot with that electric trash! (Not to mention the gas pipes were brand new whereas the electrical wiring was some 80 years old and scary as could be)...