We lived in a home built in 1903 that had 12 foot ceilings and little to no insulation. It was heated and cooled by window units and that proved to be a losing battle with the Texas elements. We call several air conditioner companies (including one that a friend worked at), but Blackmon Mooring made the most sense. They didn't try to over sell us on any of their products, they just told us, in laymans terms, what we needed to effectively cool and heat our OLD house. Plus, their price was very competitive compared to what some of the other companies had to offer with lesser units. It was a quick and easy installation and the installer gave us a very detailed demonstration of how to operate our new system. He even gave us his personal number in case we had any trouble with it. The new air conditioner worked like a dream.