If you're looking for anything from this company, stop and run the other way. I had the misfortune of having them install solar hot water in my house. They did everything wrong. Such as installing the system and then asking for permits. Then they had to come out and do it according to city code. They made silly mistakes which any plumber would know, such as putting a drain pan under the tank. The system works fine, I think. or maybe I hope. They refuse to answer questions about their system because those in the office profess to know nothing about it. They guy who does is always out of his office and leaving messages results in nothing....they simply don't answer them.
If I can't get information when I have nothing wrong with my system, how much help do you think I'll get when something does break.
These people really should'nt be in business and you'd be well off to seek services of some other more responsible company.