| Reference Letter | Dimension Description | Dimensions in Inches |
| A | Maximum height of firebox faces (excluding standoffs) | 34.50 |
| B | Maximum width of firebox face (excluding nailing flanges) | 67.75 |
| C | Maximum depth of firebox | 22.25 |
| D | Height of the firebox opening | 17.75 |
| E | Width of the firebox opening | 51.75 |
| F | Interior depth of the firebox (not shown) | 16.25 |
| H | Height to the firebox standoffs | 52.375 |
| I | Width from the left side of the box to the centerline of vent | 30.625 |
| J | Depth from the back of box to centerline of top vent | 10.50 |
| K | Height from the bottom of the box to the gas line opening | 14.625 |
| L | Depth from rear of box to gas line opening | 14.00 |
| M | Depth from the front of the box to gas line opening | 8.25 |
| N | Glass height | 12.50 |
| O | Glass width | 47.50 |
| P | Depth from front of box to centerline of vent | 11.75 |
| Q | Distance from floor to fireplace opening | 7.75 |
| R | Height from floor to vent collar | 35.875 |
| S | Overall height to header | 51.75 |
| T | Distance between framing bracket ends | 71.00 |
| V | Distance from the floor to glass opening | 10.50 |