Weil-McLain Boiler Manuals
Select your Weil-McLain model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
Weil-McLain boilers by model number
| Model | Description | Certified |
|---|---|---|
| AB-120- | 95% AFUE condensing gas boiler | November 2021 |
| AB-155- | 95% AFUE condensing gas boiler | November 2021 |
| AB-80- | 95% AFUE condensing gas boiler | November 2021 |
| ECO TEC 110ECO Tec | 95% AFUE condensing gas boiler | November 2021 |
| ECO TEC 150ECO Tec | 95% AFUE condensing gas boiler | November 2021 |
| ECO TEC 199ECO Tec | 95% AFUE condensing gas boiler | November 2021 |
| ECO TEC 80ECO Tec | 95% AFUE condensing gas boiler | November 2021 |
| EVG 110Evergreen | 95% AFUE condensing gas boiler | November 2021 |
| EVG 155Evergreen | 95% AFUE condensing gas boiler | November 2021 |
| EVG 220Evergreen | 95% AFUE condensing gas boiler | November 2021 |
| EVG 299Evergreen | 95% AFUE condensing gas boiler | November 2021 |
| GV90+3GV90+ | 91% AFUE condensing gas boiler | November 2021 |
| GV90+4GV90+ | 91% AFUE condensing gas boiler | November 2021 |
| GV90+5GV90+ | 91% AFUE condensing gas boiler | November 2021 |
| GV90+6GV90+ | 91% AFUE condensing gas boiler | November 2021 |
| SIMPLICITY 110-Simplicity | 95% AFUE condensing gas boiler | September 2024 |
| SIMPLICITY 150-Simplicity | 95% AFUE condensing gas boiler | September 2024 |
| SIMPLICITY 199-Simplicity | 95% AFUE condensing gas boiler | September 2024 |
| ULTRA 299-CTULTRA | 92% AFUE condensing gas boiler | November 2021 |
| ULTRA-105ULTRA | 94% AFUE condensing gas boiler | May 2024 |
| ULTRA-155ULTRA | 94% AFUE condensing gas boiler | May 2024 |
| ULTRA-230ULTRA | 94% AFUE condensing gas boiler | May 2024 |
| ULTRA-80ULTRA | 93% AFUE condensing gas boiler | March 2024 |
| UO-3EUltra Oil | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| UO-3REUltra Oil | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| UO-4EUltra Oil | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| UO-5EUltra Oil | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-2RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-3RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-4RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-5RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-6RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WGO-7RDWGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WTGO-3RDWTGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WTGO-4RDWTGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WTGO-5RDWTGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WTGO-6RDWTGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |
| WTGO-7RDWTGO | 87% AFUE non-condensing oil-fired boiler | November 2021 |