| AFUE | : | 84 % |
| BTU Heating Output Rating (Custom) | : | 180,000 BTU/h |
| BTU Heating Output Rating | : | 179,000 BTU/h |
| Condensing | : | No |
| Depth | : | 24.625 in |
| Fuel Type | : | Natural Gas |
| Height | : | 31.625 in |
| Inlet Connection Size | : | 1-1/2 in |
| Installation / Mounting Type | : | Floor Mount |
| Media / Fluid Type | : | Water |
| Model Number | : | CL4 |
| Number of Stages | : | Single-Stage |
| Outlet Connection Size | : | 1-1/2 in |
| Phase | : | 1 ph |
| Product Family | : | CL Water |
| Shipping Weight | : | 680 lbs |
| Vent Type | : | Atmospheric |
| Voltage Rating | : | 120 V |
| Width | : | 22.375 in |