KOZY HEAT Chaska 25 Direct Vent Insert
Direct Vent Insert
Please leave these reference guides at the installation location until the installation is finished. See owners manual for full installation and finishing instructions before making final decisions as information is subject to change.
Specifications
(all measurements are in inches)
| Model | BTU | Front Height | Back Height | Front Width | Back Width | Depth |
| CSK‐25 | 13,500 (NG) | 17‐1/2 | 12‐1/4 | 25‐3/8 | 20‐3/8 | 15 |
• GAS LINE OPENING: LEFT/RIGHT SIDES
• ELECTRICAL ACCESS: RIGHT SIDE
Existing Fireplace Opening Requirements
| Dimension | CSK‐25 |
| A | 17‐5/8 |
| B | 25‐7/8 |
| C | 15‐1/4 |
| D | 20‐5/8 |
Mantel & Hearth Clearances
| Dimension | CSK‐25 |
| E | 9 |
| F | 14 |
| G | 19 |
| H | I |
| 0 | 2‐1/2 |
| 4 | 1‐1/4 |
| 8 | 0 |
Shroud Sizes*
| Shroud Part Number | |||
| Dimension | #CK25‐22536 | #CK25‐25038 | #CK25‐30044 |
| J | 22‐1/2 | 25 | 30 |
| K | 36 | 38 | 44 |
Ventng Requirements
Consult manual for approved venting manufacturers
| Requirement | CSK‐25 |
| (NG/LP) Vertical Min | 10 ft. |
| (NG/LP) Vertical Max | 35 ft. |
