Calculator

Efficiency savings estimate

Compare your current equipment's efficiency rating with a newer system to see potential savings on the heating and cooling part of your bill.

What you spend on heating and cooling each year

If you're not sure, estimate about half of your total yearly energy bills.

Current efficiency rating (SEER2 or AFUE)

New equipment efficiency rating

Years to project

Local utility rates (editable)

Electricity ($/kWh)

Natural gas ($/therm)

These regional defaults come from our settings. Replace them with the rates on your own bill for a closer estimate.

Estimate only

Real savings depend on weather, how your home is used, thermostat settings, ductwork, insulation and utility rates that change over time. This is an illustration, not a guarantee.