An abbreviation of Heating, Ventilation and Air Conditioning, HVAC is a system with a sole purpose: making the indoors as comfortable as possible. Simple to use, HVAC is available in four different types: Heating and A/C split system, Hybrid split system, duct-free system, and Packaged heating & Air system. The different HVAC system works differently but all of them can result in high energy and maintenance costs if they aren’t handled or operated appropriately. The good news is that there are some established ways to reduce HVAC system costs. Let’s take a look at them!