State FCG-100* 4**
- Gas storage water heater
- 2 listed models
This model is not in the current certification listing as of Oct 26, 2026. It was last listed on Oct 2, 2026.
Its figures are also listed under A. O. Smith FCG-100* 4**.
Certified figures
- Storage volume
- 95gallons
- UEF
- 0.58Uniform energy factor
- First-hour rating
- 170gallonsHot water in the first hour
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Change your hourProduct history
State FCG-100* 4** left the DOE listing between Oct 2, 2026 and Oct 17, 2026.
State FCG-100* 4** was in the DOE listing by Oct 2, 2026.
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| GS6-100-*RRT* 4** | 95 | 0.58 | 170 | 79% | — |
| GSX-100-*RRT* 4** | 95 | 0.58 | 170 | 79% | — |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 95 gallons in the test, 5 gallons less than its 100-gallon sold size. Over one hour from a full tank, it gave 170 gallons in the test (its first-hour rating). Reheating lets it give 75 gallons beyond the 95 gallons in its tank.
In tests, 58% of the energy it uses ends up as hot water (UEF 0.58). Of the energy spent to reheat water, 79% goes into it (its recovery efficiency).
Its 2 model numbers are GS6-100-*RRT* 4** and GSX-100-*RRT* 4**. For the full group, see the A. O. Smith FCG-100* 4** page.
Not covered
- Advertised figures. We have none on file for this model.