Let’s be honest.  When was the last time you changed the air filter in your home’s furnace? Have you ever done it, and do you even know how? Hopefully, the answer is yes because this is the single most important thing you can to keep this vital piece of equipment functioning as it should. Depending on where you live and how often your furnace runs, the replacement intervals can vary considerably. By changing the filter, you are not just allowing the machine to breathe easier; you are also doing the same for your family. A number of bad things can result from a dirty or clogged filter, the worst of which are the host of health problems that can occur as a result of airborne contaminants. Unfortunately, clogged filters are the leading cause of HVAC service, although, they should not be. [Read more…]