...is your unit mounted flush to the ceiling? Also, how much was it, and have you been happy with it's performance? I need to heat about 700 square feet and was thinking of getting 30,000 BTu. I have an 8 foot ceiling so the unit won't be able to hang much at all. The only unit I found that was acceptable was from Grainger, but it required high ceilings.(9+ foot). Thanks.