| MODEL | Configuration | Max MBtuH | Min MBtuH | Flow Rate GPM | UEF | Temp. Range | Dimensions HxWxD | Weight Lbs. |
|---|---|---|---|---|---|---|---|---|
| 520HN | 117.0 | 0.0 | 5.30 | 80.00 | 18½" x 36¾" x 10½" | 35 | ||
| 520 PN | 117.0 | 0.0 | 5.30 | 78.00 | 18½" x 36¾" x 10½" | 35 | ||
| 330 PN | 75.0 | 0.0 | 3.30 | 78.00 | 12 ¼" x 22 7/8" x 8¾" | 26 |