RELIANCE WATER HEATERS GPDT-50 3**
RELIANCE WATER HEATERS GPDT-50 3** is in the DOE listing as of Oct 26, 2026.
- Gas storage water heater
- 2 listed models
Not listed as ENERGY STAR certified on Oct 26, 2026.
Its figures are also listed under A. O. Smith GPDT-50 3**.
Certified figures
- Storage volume
- 48gallons
- UEF
- 0.72Uniform energy factor
- First-hour rating
- 79gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| 6-50-HBPDT 3*1 | 48 | 0.72 | 79 | 79% | High |
| 6-50-YBPDT 3** | 48 | 0.72 | 79 | 79% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 48 gallons in the test, 2 gallons less than its 50-gallon sold size. Starting full, it gives 79 gallons of hot water in its first hour of use. Its tank holds 48 gallons, so reheating adds 31 gallons during the first hour. In the first hour, 344 of the 763 gas storage models give more hot water. The median gas storage model gives 78 gallons in its first hour.
It was not listed as ENERGY STAR certified on Oct 26, 2026. In tests, 72% of the energy it uses ends up as hot water (UEF 0.72). The daily hot water use in the test, called its draw pattern, was high. Among 434 gas storage models on its draw pattern, 71 have a higher UEF. For its type and draw pattern, the median UEF is 0.66. When it reheats water in the test, 79% of the energy it uses ends up in the water.
It is the basic model for 6-50-HBPDT 3*1 and 6-50-YBPDT 3**. Its test figures match those of 6 other basic models. They are listed under 6 other brands, one each. For the full group, see the A. O. Smith GPDT-50 3**.
It may qualify for 2 rebate programs.
Also listed as
They carry every figure in the table above.
Rebates
| Program | State | Status | Program page |
|---|---|---|---|
| Xcel Energy MINNESOTA RESIDENTIAL ENERGY EFFICIENCY PROGRAMS (gas storage, gas tankless) | MN | May qualify | Its own page |
| Avista Home and small commercial: HVAC and water heating incentives (gas storage) | WA | May qualify | Its own page |
Programs change their terms. Check the program's own page before you buy.
- Every RELIANCE WATER HEATERS basic model
- Every 50-gallon gas storage water heater
- Every gas storage water heater
- The most-searched gas storage models side by side
Not covered
- Advertised figures. We have none on file for this model.