Safety & Maintenance
Converting a Wood-Burning Fireplace to Gas in Colorado: What to Plan Before You Buy
Converting an existing wood-burning fireplace to gas can make the fireplace easier to use, but “convert to gas” can mean several very different projects.
A homeowner might mean vented gas logs, a gas fireplace insert, a built-in gas appliance or another listed system. Each option has different venting, gas-supply, clearance and permit requirements.
Start with the existing fireplace and chimney
Before choosing the new appliance, evaluate what you already have.
Questions include:
- Is the existing fireplace masonry or factory-built?
- What condition is the flue or chimney in?
- Is there an existing liner?
- Has the fireplace been altered?
- Is gas already available nearby?
- Does the chosen appliance use the existing chimney, a new liner or its own direct vent?
A conversion can reveal defects that were easy to ignore when the fireplace was not being used.
Gas logs and gas inserts are not the same
Vented gas logs preserve more of the open-fireplace appearance and typically rely on the fireplace/chimney for venting. A gas insert is an appliance installed into the existing fireplace opening and usually has its own specified venting arrangement.
The right choice depends on the homeowner’s goals, existing fireplace dimensions and the product listing.
Colorado elevation needs to be part of appliance selection
Denver, Colorado Springs and Fort Collins are all well above sea level. Gas appliances must be selected and installed according to the manufacturer’s altitude instructions. Some products include specific high-altitude provisions or require changes in input rate or components.
Do not assume that an appliance configured for a low-elevation market can simply be installed unchanged in Colorado.
Permits vary by jurisdiction
Local permitting should be verified before the project begins. Denver lists certain fireplace, gas-log, gas-piping and gas-vent work within its mechanical permit system. Pikes Peak Regional Building Department identifies fireplace or stove installation/replacement as permit work in its service area. Fort Collins lists fireplace/fire pit/wood-burning stove and gas/wood-burning appliance permit categories.
The exact permit path depends on the project and address.
Do not forget the old damper and flue
A conversion may require specific treatment of the damper, vent connection or liner. Those details should come from the selected appliance’s instructions and applicable code—not a generic conversion rule.
Think beyond convenience
Ask what you want from the new system:
- Easy on/off operation
- Supplemental heat
- A sealed direct-vent appliance
- Traditional open-flame appearance
- Remote or thermostat control
- Lower maintenance than wood
Then choose the system around those goals instead of buying the first burner that fits the opening.
Keaton Chimney Solutions provides fireplace inspection, conversion planning, repair and installation throughout Denver, Colorado Springs, Fort Collins and surrounding communities. Call 720-734-5373.
Can every wood fireplace be converted to gas?
Not automatically. The fireplace, chimney, gas supply, appliance listing and local requirements must all be considered.
Do I still need the chimney with gas logs?
Vented gas logs generally rely on appropriate venting. A direct-vent insert may use a different vent arrangement through the existing chimney.
Does Colorado altitude matter for gas fireplaces?
Yes. Follow the appliance manufacturer’s altitude instructions and applicable local requirements.
Need help with a chimney or fireplace in Colorado? Keaton Chimney Solutions serves Denver, Colorado Springs, Fort Collins, and surrounding communities. Call 720-734-5373.