| ENERGY STAR Partner |
| Rheem-Ruud Manufacturing |
Rheem-Ruud Manufacturing |
| Product Category |
| Furnaces |
Furnaces |
| Type |
| Furnace |
Furnace |
| Brand Name |
| RUSSELL |
RUSSELL |
| Model Name |
| Rheem |
Rheem |
| Model Number |
| S951V1005A21M4 |
S921V0603A17M4 |
| Date Available On Market |
| March 20, 2016 |
August 1, 2013 |
| Date Certified |
| January 5, 2024 |
January 5, 2024 |
| Markets |
| United States, Canada |
United States |
| CB Model Identifier |
| ES_1045829_S951V1005A21M4_06172022003408_2753617 |
ES_1045829_S921V0603A17M4_06172022003408_121200 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Fuel Type |
| Natural Gas,Propane Gas |
Natural Gas,Propane Gas |
| Furnace is ENERGY STAR Certified in |
| U.S. South Only |
U.S. South Only |
| Efficiency (AFUE) |
| 95 |
92 |
| Capable of Two Way Communication? |
| Not Applicable |
Not Applicable |
| Date Qualified |
| January 5, 2024 |
January 5, 2024 |
| Can Integrate Hot Water Heating |
| No |
No |
