Hi Frank,
You are welcome. We are very frustrated ourselves with the over hype. The heaters are wonderful with their true capabilities and benefits and do not need to by over promised. It really hurts the industry in general.
I am sure that the heaters have done the size areas they are claiming, but under what inside and outside temperature and what time of year. It just is not realistic.
I am not sure if you have been to our main site. However, if not go here
http://www.solarcomfortheating.com .
Charles