| Model Number | SF-20/20F | SF-25/25F | SF-30/30F | SF-35/35F | SF-42/42F |
| BTUH Input Height Width Depth Voltage Amp. Draw Ship Wt. Unit Wt. |
20,000 7 1/2" 17" 20" 12 VDC 6.5 35 lbs. 32 lbs. |
25,000 7 1/2" 17" 20" 12 VDC 6.5 35 lbs. 32 lbs. |
30,000 7 1/2" 17" 20" 12 VDC 6.5 35 lbs. 32 lbs. |
35,000 7 1/2" 17" 20" 12 VDC 9.0 35 lbs. 32 lbs. |
40,000 7 1/2" 17" 20" 12 VDC 11.5 35 lbs. 32 lbs. |
| Duct Outlet Size: | |||||
| Sides/Bottom Bottom |
4" Round 4" x 14" |
4" Round 4" x 14" |
4" Round 4" x 14" |
4" Round 4" x 14" |
4" Round 4" x 14"* |