Valentine’s Day is all about relationships—the good ones that make you feel comfortable and the bad ones that drain your energy (and your wallet). If your HVAC system has been around longer than most of your appliances and keeps letting you down, it might be time to break up. An aging heating and cooling system in Avalon, Deerfield, and Cherry Hill, NJ, can quietly rack up high utility bills, frequent repairs, and inconsistent comfort, all while asking for more commitment than it deserves.