If you have trouble finding your model on the Energy Star site or CEE directory as mentioned in prior posts, you might try using the Annual Fuel Utilization Efficiency (AFUE) rating. For 2023 that number needs to be equal or greater than 97% for your furnace to be eligible for the credit. You can find the AFUE in a few places. 1. In your paperwork from the vendor. 2. On the faceplate on the furnace. 3. Use the model/serial number for your furnace to check for the AFUE on the manufacturer's webpage.
Remember on the Energy Star site an asterisk represents any number or letter; so if your model matches a qualifying model all the way to the asterisk then you are good to go.
[edited 3/18/2024 11:36AM PDT]
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