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Efficiency Calculator

This energy savings calculator is based on one that was developed by the U.S. EPA and U.S. DOE and is provided for estimating purposes only. Actual energy savings may vary based on use and other factors.

Instructions: Please select your fuel type, number of boilers in your home, the rate you pay for gas or oil, and your geographic region.

Please select country of residence
Current boiler fuel type
Would you like to compare gas and oil?
Gas Rate

City
How large is your home (in square feet)?

When was your home built?
When was your boiler installed?

	Current Boiler	Option 1	Option 2
	(obtain the efficiency and capacity from your boiler rating plate, or use default.)
Annual Fuel Utilization Efficiency (AFUE)
Initial Cost per Unit (estimated retail price)
Use with programmable thermostat?

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Contractors

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