Eligible products for the Nicor Gas Energy Efficiency Program can be found via the qualifying product lists below:
High-Efficiency Boilers
- Qualifying Gas Boilers - Efficiency Level - AFUE > 90%
- Qualifying Gas Boilers - Efficiency Level - AFUE > 95%
Indirect Water Heaters
- Qualifying Indirect Water Heaters - Add On
- Qualifying Boilers with Integrated Indirect Water Heaters - Efficiency Level - AFUE > 90%
- Qualifying Boilers with Integrated Indirect Water Heaters - Efficiency Level - AFUE > 95%
High-Efficiency Furnaces
- Qualifying Gas Furnaces - Efficiency Level - AFUE > 92%
- Qualifying Gas Furnaces - Efficiency Level - AFUE > 95%
- ENERGY STAR® Most Efficient Furnaces - AFUE > 97%
Natural Gas Storage Water Heaters
- Qualifying Gas Storage Water Heaters - Efficiency Level - EF > 0.67
Programmable Thermostats
Products not listed on a qualifying products list may be eligible if all other Program requirements are met. If your product is not listed on one of these qualifying products lists but you believe it meets the Program requirements, please contact us to verify eligibility.
Complete System Replacements
Central Air Conditioning (CAC) units do not have a qualifying products list. The CAC with both the evaporator coil and condenser unit, must be rated at 14.5 SEER or greater and be AHRI Certified. Visit www.ahridirectory.org to verify certification.
Please Note: The current ENERGY STAR rating for boilers and furnaces includes an efficiency range that may be lower than the Nicor Gas Energy Efficiency Program's efficiency levels, which would make these products ineligible for rebates under the Nicor Gas program. Please be sure to check the efficiency level requirements on the Rebate Information page prior to purchasing a product.




