| BTU Heating Input Rating (Custom) | : | 156,000 BTU/h |
| BTU Heating Input Rating | : | 157,000 BTU/h |
| Condensing | : | Yes |
| Fuel Type | : | Natural Gas |
| Gas Connection Size | : | 3/4 in |
| Height | : | 27.5 in |
| Low NOx | : | Ultra Low NOx |
| Model Number | : | RUTGH |
| Product Family | : | Ultra |
| Vent Size | : | 2~3~4 in |
| Vent Type | : | Direct Vent |
| Voltage Rating | : | 120 V |
| Water Connection Size | : | 3/4 in |
| Width | : | 18.5 in |