This is one of those deceptively cold days. Sitting inside in the comfort of your favorite chair in front of the fire place the sun outside looks almost inviting. If you step outside even for a few minutes to get the mail, however, you realize that the slight breeze that fairly seems to be moving the evergreen branches literally slices the 20 degree temperature in half making it feel like 10. It is, of course, in the middle of one of these winter days when you cannot help but be thankful for the high quality HVAC installations that you invested…