Great water heater. Has worked flawlessly for the past 8 months. I just had my first experience with there customer service regarding an advanced feature. I have been referred to an engineer and I'm sure the issue will be resolved soon.
My power bills have seen a seen a 20-30% decrease when compared month to month with my old resistive water heater.
The 220e is installed in my garage and I was initially concerned with its performance once it had to operate in <50f environment. It has taken it like a champ and run times do not seen to be exaggerated.
I do plan on installing an off grid solar system and I beleive the reduced electrical consumption will pay dividends sizing my system.