Contemporary gas fireplace insert
Cosmo Insert
Cosmo Insert converts an existing wood-burning fireplace into a clean, contemporary gas fire. Its low-profile surround, modern interior, and two sizes make it a strong choice when the room needs a simpler, less traditional update.
Buying guidance
Why choose Cosmo Insert?
Cosmo Insert converts an existing wood-burning fireplace into a clean, contemporary gas fire. Use the short sections below to see where it fits, what separates it, and what should be settled before ordering.
Best forUpgrading an existing masonry fireplace
Cosmo Insert converts an existing wood-burning fireplace into a clean, contemporary gas fire.
What makes it different2 configurations within one family
The current collection includes Cosmo 30: 30-inch insert; Cosmo 35: 35-inch insert. A contemporary insert for smaller existing openings.
What to plan forMeasure the existing opening before choosing a model
Confirm the exact model, natural gas or propane, vent path, clearances, heat-management approach, and surrounding finish before construction. The current choices shown here include 30-inch insert, 35-inch insert.
Compare nearby Heat & Glo families 3 alternatives
Escape Insert
Escape Insert is Heat & Glo's premium traditional insert, with a large fire view, anti-reflective glass, detailed logs, and FireBrick technology.
Provident Insert
Provident Insert restores an unused wood-burning fireplace with reliable heat, a traditional log presentation, and straightforward controls.
Supreme Insert
Supreme Insert offers three sizes and a wide range of logs, interior styles, fronts, and surrounds.
Official product video
See the flame before you compare it in person
What to compare
- Flame height and movement
- Log, ember, glass, or stone presentation
- Viewing area and room scale
- Heat output and control options
- TV, mantel, and finish requirements
Current collection
Models and sizes
Cosmo 30
30-inch insert
A contemporary insert for smaller existing openings.
Cosmo 35
35-inch insert
A larger modern view for wider masonry fireplaces.
Official inspiration
Cosmo Insert design examples
These official images show the current Cosmo Insert presentation. We will confirm the existing opening dimensions, vent path, surround coverage, and finishing details before selecting a size.
Before ordering
Plan the complete fireplace
Confirm the model and vent route
Bring plans, room photos, or opening dimensions. We will verify the correct model, fuel, venting, and clearances.
Choose the finished appearance
Compare fronts, logs, interiors, media, mantels, hearths, and surrounding brick or stone in one plan.
Coordinate heat and the television
Heat-management choices, mantel clearances, framing, and television placement should be decided before construction.
Details and support
Resources
Official Cosmo Insert information
Use the manufacturer page for current manuals, detailed specifications, and configuration resources.
Get help from Gagnon
We can narrow the choices, confirm the installation plan, and provide current product and installation pricing.
Let’s plan the right fireplace
Send us your dimensions or visit the showroom. We will help compare models, finishes, venting, and installation requirements.