"If you use terminology like "best" that means you shouldn't be selling and installing solar."
No need to get mad it was just a question and I'm sorry for using the term best, when I mean best is in general considering all the technical specs, BTU density, wind loads, cost per btu, ambient temp. loss, stagnation temp., certification, etc etc.
How do I find this out?
Average annual solar insolation?[/quote]