Burnham by U.S. Boiler Commercial Water Heater Manuals
Select your Burnham by U.S. Boiler model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
Burnham by U.S. Boiler commercial water heaters by model number
| Model | Description | Certified |
|---|---|---|
| CTDW1000LCitadel | 999,000 Btu/h commercial gas tankless water heater | July 2024 |
| CTDW400Citadel | 399,000 Btu/h commercial gas tankless water heater | April 2024 |
| CTDW500Citadel | 500,000 Btu/h commercial gas tankless water heater | April 2024 |
| CTDW650Citadel | 650,000 Btu/h commercial gas tankless water heater | April 2024 |
| CTDW800Citadel | 800,000 Btu/h commercial gas tankless water heater | July 2024 |