Build Your Product
Glass ColorThe color of glass in the fire bed.
Optional logs or decorative accents for the fire bed.
The decorative front — one is required for installation.
The panels that line the inside of the firebox.
Covers the gap around an insert. We'll confirm the size when we measure your fireplace.
Optional extras.
Your quote will include
- Model
- Chaska – 25 / Log / IPI
- Screen Front
- Not sure – help me choose
- Firebox Interior
- Standard (included)
- Shroud
- Not sure – help me choose
Your choices are sent with your quote request. Not sure? Pick “Not sure” and we’ll help you choose.
Product Overview
Chaska Gas Fireplace Insert Series
The Kozy Heat Chaska series turns an existing masonry or factory-built wood fireplace into a clean, efficient direct vent gas insert. The Chaska keeps the location, surround, and proportions of the original fireplace and adds the cleanliness and control of modern gas operation.
Sizing and specs:
- Chaska 25: 26,000 BTU/hr NG (25,500 LP), steady-state efficiency ~78%. Kozy Heat's smallest gas insert, designed for compact existing fireboxes
- Chaska 29: 30,000 BTU/hr NG/LP (log), 25,500 (glass), 28,500 (millivolt). Steady-state efficiency 72%–74%. Available with traditional log set or glass media, plus a millivolt ignition option
- Chaska 34: 34,000 BTU/hr NG/LP, steady-state efficiency 77%–79%. Available with log or glass media
For dedicated millivolt ignition on a wider unit, see the Chaska 335S. Each Chaska insert includes electronic ignition (IPI on most variants), ceramic glass, fan kit, and refractory brick lining. Customize with media options (log, glass, rock), screen front choices (nine styles available), and shroud options.
The Chaska series is part of the Kozy Heat collection at Custom Fireside.
