Traditional gas insert with broad size coverage
Supreme Insert
Supreme Insert offers three sizes and a wide range of logs, interior styles, fronts, and surrounds. It is the most flexible Heat & Glo insert family when the goal is a traditional fire that fits the proportions of the existing fireplace.
Buying guidance
Why choose Supreme Insert?
Supreme Insert offers three sizes and a wide range of logs, interior styles, fronts, and surrounds. 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
Supreme Insert offers three sizes and a wide range of logs, interior styles, fronts, and surrounds.
What makes it different3 configurations within one family
The current collection includes Supreme 25: 25-inch insert; Supreme 30: 30-inch insert; Supreme 35: 35-inch insert. A compact insert for smaller masonry 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 25-inch insert, 30-inch insert.
Compare nearby Heat & Glo families 3 alternatives
Provident Insert
Provident Insert restores an unused wood-burning fireplace with reliable heat, a traditional log presentation, and straightforward controls.
Cosmo Insert
Cosmo Insert converts an existing wood-burning fireplace into a clean, contemporary gas fire.
Escape Insert
Escape Insert is Heat & Glo's premium traditional insert, with a large fire view, anti-reflective glass, detailed logs, and FireBrick technology.
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
Supreme 25
25-inch insert
A compact insert for smaller masonry openings.
Supreme 30
30-inch insert
The middle size for many common fireplace openings.
Supreme 35
35-inch insert
A larger traditional fire view for wider openings.
Official inspiration
Supreme Insert design examples
These official examples show how the Supreme family can shift from traditional brick and oak to birch logs and reflective glass. The existing opening determines the size and surround coverage.
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 Supreme 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.