As for energy consumption inside your home, the HVAC system you have accounts for a huge chunk of it. In fact, HVAC systems account for 30% of a home’s energy use on average. When you take that into account, 30% is a huge fraction of your overall cost. However, sticking to a routine maintenance schedule and the right usage, you can actually save money on your HVAC. With energy costs rising, it’s only fitting to make all the applicable ways to save on energy.