Heating and cooling your home is typically the largest use of energy in your home. You can use the Comparison Tool to compare the annual energy use and cost of a wide range of heating and cooling systems. You can also learn the how quickly a new system will pay for itself in lower energy costs.

Choose "EXISTING vs. NEW" to compare your existing system with a new heating and cooling system or "NEW vs. NEW" to compare two new systems with each other.
Choose "Heating & Cooling" to compare systems that provide both heating and cooling for your home. Choose "Heating" to compare systems that provide only heating or "Cooling" to compare systems that provide only cooling.
Now choose the types of systems (equipment and energy types) you want to compare and click the "Next" button.