If you flip homes, you know that buyers expect the heating and cooling system to be in good working order - the newer the better. Here is how to choose the right HVAC system for your flip. New heaters tend to jump out in home listings, especially here in Iowa. But, If the property's heating or cooling system is 10+ years, it won't go unnoticed and could potentially scare off a potential buyer. Repair or Replace? For newer systems, repairing is usually the most economic option