RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon
RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon is a gas storage water heater from RELIANCE WATER HEATERS with a 38 gallon rated tank and a 86 gallon first-hour rating at a 0.9 UEF.
| Uniform Energy Factor (UEF) | 0.9 |
|---|---|
| Annual gas use (natural gas) | 188 therms/yr |
| Recovery efficiency | 91 % |
| Annual propane use | 205.46 gal/yr |
| Fuel | Natural Gas, Propane |
|---|
| First-hour rating | 86 gal |
|---|---|
| Rated storage volume | 38 gal |
| Draw pattern | High |
| Gas input rate | 50 kBTU/h |
|---|
| Max current draw | 2 A |
|---|---|
| Vent type | Power Vent |
| Vent size | 2 / 3 |
| Smart / connected capable | No |
|---|
| Height | 44.7 in |
|---|---|
| Diameter | 22 in |
| ENERGY STAR certified | Yes |
|---|
Capacity and running cost
- Its 86 gallon first-hour rating suits a household of 5+ people under DOE sizing guidance.
- Rated for a high-usage draw pattern under the DOE test procedure.
- Estimated running cost: about $273/year at national average gas rates.
Compare the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs A. O. Smith GC6-PS4050-V 1 40-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs A. O. Smith GC6-PS5065-V 1 50-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs A. O. Smith GPCC-40L 1 40-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs American GPCT-40L 1 40-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs American GPCX-50L 1 50-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs American GSP-100 2 30-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs Envirosense Reliance Home Comfort ENV-40N-RHC 1 40-Gallon
- RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon vs Envirosense Reliance Home Comfort ENV-50N-RHC 1 50-Gallon
Similar water heaters
- A. O. Smith GC6-PS4050-V 1 40-Gallon (UEF 0.9)
- A. O. Smith GC6-PS5065-V 1 50-Gallon (UEF 0.9)
- A. O. Smith GPCC-40L 1 40-Gallon (UEF 0.9)
- A. O. Smith GPCT-40L 1 40-Gallon (UEF 0.9)
- A. O. Smith GPCT-40L 1 40-Gallon (GC9-PS4050NV 1) (UEF 0.9)
- A. O. Smith GPCT-40L 1 40-Gallon (HPCT-40L 1) (UEF 0.9)
Frequently asked questions
Is the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon ENERGY STAR certified?
Yes, the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon holds a current ENERGY STAR certification for water heating efficiency (UEF 0.9).
How much does the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon cost to run per year?
About $273 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What venting does the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon use?
The RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon uses Power Vent venting with 2 / 3 in vent connections. Matching the existing vent type is usually the cheapest replacement path.
Is the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon a smart water heater?
No, the RELIANCE WATER HEATERS GPCT-40L 1 40-Gallon is not connected-capable — it has no app connectivity or demand-response support.
Sources
- data.energystar.gov (retrieved 2026-07-17)