In many cases, your original air conditioner and gas furnace were installed as a matched set. When one needs to be replaced it doesn’t necessarily mean you have to replace both, but it’s a good time to start thinking about your options. You might consider upgrading to a heat pump system or a dual fuel system which can reduce energy costs during the spring and fall heating seasons. If you call a contractor to come out and evaluate your options for repair or replacement it’s a good time to ask about long-term solutions in addition to the quick fix. A qualified contractor should be able to tell you about the usable life remaining in your system and provide you with several recommendations for short, mid and long-term solutions based on your needs and preferences. It’s also a good idea to ask about scheduled maintenance solutions which can help keep your system running longer and in better condition.