Space heating is likely the largest energy expense in your home, accounting for about 45 percent of the average American family’s energy bills. That means making smart decisions about your home’s heating system can have a big impact on your energy bills.

Our new Energy Saver 101 infographic lays out everything you need to know about home heating — from how heating systems work and the different types on the market to what to look for when replacing your system and proper maintenance. Throughout the infographic, you’ll find ways to cut your heating costs (like installing and setting a programmable thermostat could save you up to 10 percent on your heating bills) and energy-saving tips for each type of heating system (like cleaning your electric baseboards’ heating coils regularly to maintain your heater’s efficiency). Be sure to take a moment to explore the infographic and visit Energy Saver for more ways to save energy at home.