State Water Heater Manuals
Select your State model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
State water heaters by model number
| Model | Description | Certified |
|---|---|---|
| CSHP-40 2 | 36-gallon heat pump water heater | August 2026 |
| CSHP-50 2 | 46-gallon heat pump water heater | August 2026 |
| CSHP-66 2 | 68-gallon heat pump water heater | August 2026 |
| CSHP-80 2 | 81-gallon heat pump water heater | August 2026 |
| GHX-34-100 N 2 | 33-gallon residential-duty commercial gas water heater | February 2023 |
| GP-8-50-*TPDT 4 | 49-gallon residential-duty commercial gas water heater | December 2025 |
| GP-8-75-*TPDT 4 | 74-gallon residential-duty commercial gas water heater | December 2025 |
| GP6-40-*RPCSL 1GP6-40-*RPCS 1** | 38-gallon natural gas storage water heater | February 2023 |
| GP6-50-YTVIT 1 | 48-gallon residential-duty commercial natural gas water heater | February 2023 |
| GP6-50-*TPDT 3 | 49-gallon residential-duty commercial gas water heater | February 2023 |
| GP6-50-*XPCSL 1PCG62-50S65L 1** | 49-gallon natural gas storage water heater | February 2023 |
| GP6-75- *TPDT 3 | 74-gallon residential-duty commercial gas water heater | February 2023 |
| GP8-40-YRPCSL 1GPCT-40L 1** | 38-gallon gas storage water heater | November 2024 |
| GP8-50-YXPCSL 1GPCX-50L 1** | 49-gallon gas storage water heater | November 2024 |
| GTS-240-NEH 1T-H3J-OS-N | 160,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-240-PEH 1*1T-H3J-OS-N | 160,000 Btu/h propane tankless water heater | February 2023 |
| GTS-240X3-NEH 1T-H3J-OS-N | 160,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-240X3-PEH 1*1T-H3J-OS-N | 160,000 Btu/h propane tankless water heater | February 2023 |
| GTS-340-NIH 1T-H3S-DV-N | 180,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-340-PIH 1*1T-H3S-DV-N | 180,000 Btu/h propane tankless water heater | February 2023 |
| GTS-340X3-NIH 1T-H3S-DV-N | 180,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-340X3-PIH 1*1T-H3S-DV-N | 180,000 Btu/h propane tankless water heater | February 2023 |
| GTS-540-NEH 1T-H3-OS-N 1** | 199,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-540-PEH 1*1T-H3-OS-N 1** | 199,000 Btu/h propane tankless water heater | February 2023 |
| GTS-540P-NEH 1T-H3-OS-N 1** | 199,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-540P-PEH 1*1T-H3-OS-N 1** | 199,000 Btu/h propane tankless water heater | February 2023 |
| GTS-540X3-NEH 1T-H3-OS-N 1** | 199,000 Btu/h natural gas tankless water heater | February 2023 |
| GTS-540X3-PEH 1*1T-H3-OS-N 1** | 199,000 Btu/h propane tankless water heater | February 2023 |
| HP6-50-DHPT 1 | 46-gallon heat pump water heater | February 2023 |
| HP6-66-DHPT 1 | 67-gallon heat pump water heater | February 2023 |
| HP6-80-DHPT 1 | 82-gallon heat pump water heater | February 2023 |
| HPAX-40-DHPT 2 | 36-gallon heat pump water heater | December 2025 |
| HPAX-50-DHPT 2 | 46-gallon heat pump water heater | December 2025 |
| HPAX-66-DHPT 2 | 68-gallon heat pump water heater | December 2025 |
| HPAX-80-DHPT 2 | 81-gallon heat pump water heater | December 2025 |
| HPSX-50-DHPT 2 | 46-gallon heat pump water heater | December 2025 |
| HPSX-66-DHPT 2 | 67-gallon heat pump water heater | December 2025 |
| HPSX-80-DHPT 2 | 82-gallon heat pump water heater | December 2025 |
| HPVX-50-DHPT 2 | 46-gallon 120-volt heat pump water heater | December 2025 |
| HPVX-66-DHPT 2 | 68-gallon 120-volt heat pump water heater | December 2025 |
| HPVX-80-DHPT 2 | 82-gallon 120-volt heat pump water heater | December 2025 |
| HPX-50-DHPTCTA 1 | 46-gallon heat pump water heater | February 2023 |
| HPX-50-DHPTNE 1 | 46-gallon heat pump water heater | February 2023 |
| HPX-66-DHPTCTA 1 | 67-gallon heat pump water heater | February 2023 |
| HPX-66-DHPTDR 1 | 67-gallon heat pump water heater | February 2023 |
| HPX-66-DHPTNE 1 | 67-gallon heat pump water heater | February 2023 |
| HPX-80-DHPTCTA 1 | 82-gallon heat pump water heater | February 2023 |
| HPX-80-DHPTDR 1 | 82-gallon heat pump water heater | February 2023 |