Well I've had my Ninja for 6 months with auto drain and 135psi pump and I wish I hadnt bothered. The bad things 1. much much too heavy and awkward to negotiate steps 2. no hour meter 3. no temp meter,4 tanks much too small 3 no view thru into dirty tank outweigh the good points 1 cant boil the heater element dry, 2 in line heater great when no hot water available
But the thing that no body will persuade me otherwise is IT REALLY IS TOO BLEEPING HEAVY.
Chris