On October 08, 2007 at 10:41PM Bart Silverstrim wrote: [snip] > > what is this? HVAC? > > Heating and air conditioning, I believe. No? HVAC (pronounced either "H-V-A-C" or, occasionally, "H-VAK") is an initialism/acronym that stands for "heating, ventilation, and air conditioning". HVAC may also stand for High-voltage alternating current -- Gerard