Replacing my water heater - advice needed

Hello, I work overseas most of the year, and in most of the countries I have been the last few years this type of technology is used. I am actually considering changing my home in the USA to this type of water heating process. The only problem I have noticed is that in some cases (mostly hotels, or small apartments) you must reduce the water flow to maintain the temperature, but this is not consistant with all. I have contacted a friend who is currently living in Brazil where this is very common and he will forward some literature from the unit he just purchased Regards - Good luck

I have some limited experience with instantaneous electric hot water heaters -- and it has been bad. I have had elements burn out and the sophisticated electronic controls fail. Technical literature for the units I have looked at is sketchy at best. For an instantaneous heater you need a bigger electric circuit and will pay significantly more for the unit than a typical residential style storage heater. If you pay for electric demand, an instantaneous could result in higher demand charges and there is no opportunity to stagger demand with other equipment (i.e. if the air conditioning compressor is running lock out the hot water heater, with a storage heater you can run many minutes before the storage is used up, probably enough to finish you shower). Expect to replace instantaneous units on a regular basis. Also expect your model to become obsolete quickly.