Hi Tom, thanks for your coment....
yeah, i agree with you, the fact that it have only a wash arm under the lower rack, if i put glasses in the center area of the upper rack they come out bad washed, so i use this area to put things faced to the top arm...
about the heating element, yes, it's hidden below the screen. This dishwasher, as all dishwashers here in Brazil is made to be filled with cold water, and thanks to it's high potence (or power, don't know exately what word to use, hehe) of 1700 watts it takes no more than 10 or 15 min to heat the water. The faster program takes 55 min (not considering the drying time, that the machine stay only with the drying light on, but not use the heater or any kind of fun, the dishs dry only with the residual hotness of the last hot rinse with rinse aid at 60ºC (140ºF)). it washes for 30 min, 2 middle rinses of about 5 min each and the last hot rinse for about 15 min, pluz about 25 min of drying time. the normal cicle is the same, but with a pre wash of about 10 min and the pots and pans have a 15 min pre wash and 3 middle rinses instead of 2.