From replacing heaters in the dead of winter to tuning up AC units during the summer, HVAC businesses seemingly always have something to do. But how significantly do changes in local weather impact the number of HVAC service calls in your area? In this sweltering July heat, that's a burning question. And…

The first major snowfall has hit the northeast, and you know what that means. Mother Nature has made the incredible leap from summer to winter, barely skimming fall on her way. For regions of the country that are already frosty and expecting more of the same as the season rolls on, local…