| ENERGY STAR Partner |
| Carrier Corporation |
International Comfort Products (ICP) |
| Product Category |
| Furnaces |
Furnaces |
| Type |
| Furnace |
Furnace |
| Brand Name |
| Grandaire |
Grandaire |
| Model Name |
| GRANDAIRE |
GRANDAIRE |
| Model Number |
| WFSX100C060A |
WFSU040B036B |
| Date Available On Market |
| September 6, 2011 |
September 25, 2019 |
| Date Certified |
| February 12, 2024 |
February 12, 2024 |
| Markets |
| United States, Canada |
United States |
| CB Model Identifier |
| ES_1020846_WFSX100C060A_07312019050127_8519886 |
ES_1076501_WFSU040B036B_03292023004455_5662549 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Fuel Type |
| Natural Gas,Propane Gas |
Natural Gas |
| Furnace is ENERGY STAR Certified in |
| All |
All |
| Efficiency (AFUE) |
| 96 |
95 |
| Capable of Two Way Communication? |
| Not Applicable |
Not Applicable |
| Date Qualified |
| February 12, 2024 |
February 12, 2024 |
| Can Integrate Hot Water Heating |
| No |
No |
