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Gas Fireplace Replacement & Installation

When an existing gas fireplace is outdated, unreliable, badly deteriorated or no longer supported with replacement parts, replacement may be a better long-term solution than continuing to repair it.

Gas Fireplace Services

When an existing gas fireplace is outdated, unreliable, badly deteriorated or no longer supported with replacement parts, replacement may be a better long-term solution than continuing to repair it. Homeowners may also choose replacement to gain electronic ignition, remote control, variable flame operation or a different fireplace appearance.

AirPlease Missouri Chimney Services evaluates the existing fireplace opening and helps determine what type of replacement system may fit the space and intended use.

On This Job

Replacing a Worn Gas System

These two photos are the same fireplace before and after a system replacement.

The original log set and burner assembly had reached the end of their service life, with heavy sooting across the media. Rather than continue servicing a system at that stage, the unit was replaced.

The second photo shows the new system installed and running in the same opening.

Schedule Online or Call Now

Schedule online or call 314-334-1554 to speak with a gas fireplace specialist.

Schedule Online Call 314-334-1554

When to Replace

When Replacement Makes Sense

Worn gas log set and dirty ember bed before the system was replaced by AirPlease Missouri Chimney Services
Before: the old system, worn and heavily sooted.

System Types & Sizing

Gas Logs, Burners, Inserts and Fireplace Systems

The term gas fireplace can describe several different products. Some homes have gas logs in a masonry fireplace. Others use vent-free burners, direct-vent inserts or factory-built gas fireplaces. The correct replacement depends on the existing opening, venting and homeowner goals.

Measuring the Existing Opening

Firebox width, height, depth and surrounding clearances are measured before products are selected. Venting, gas supply location, electrical needs and termination conditions can also affect what can be installed.

Controls & Venting

Electronic Ignition and Remote Control

Many modern systems offer electronic ignition, variable flame control and remote operation. Product selection should be based on compatibility as well as appearance.

Vented and Vent-Free Options

Different gas systems manage combustion products differently. Some require an operating chimney or dedicated vent, while approved vent-free systems are designed for operation without a traditional flue. The existing room and fireplace must be evaluated before selection.

Project Coordination

Gas and Electrical Coordination

Some installations require gas-line modification, electrical power or other work outside the fireplace installation itself. When another licensed trade is required, that coordination should be identified before work begins.

Removal of the Existing System

Replacement may require removal of old logs, burner components, inserts or other fireplace parts. The amount of demolition depends on how the existing system was installed and what new product is being fitted.

Making the Right Choice

Choosing Between Logs, Inserts, and Complete Systems

A gas-log set installed in a suitable fireplace is different from a gas insert or a complete factory-built gas fireplace. Each option has different space, venting, control, and installation requirements. The existing opening should be identified before products are compared.

Wood-to-Gas Conversions

Some masonry fireplaces can be converted to an appropriate gas system, but the existing firebox, chimney, venting path, gas supply, and chosen product all have to work together. Conversion is not simply a matter of placing gas logs into any fireplace.

Planning for Gas and Electrical Requirements

Modern electronic-ignition fireplaces may need electrical power in addition to a suitable gas supply. If gas piping or electrical work is required outside AirPlease Missouri Chimney Services's fireplace scope, the project may need coordination with the appropriate licensed trade.

Frequently Asked Questions

How do I know whether this service is right for my fireplace?

The technician evaluates the system, symptoms and condition and explains whether maintenance, repair or replacement is appropriate.

Do you work on older gas fireplaces?

Many older systems can be serviced, but repair options depend on the manufacturer, model and availability of compatible parts.

What information helps before the appointment?

If available, the fireplace manufacturer and model number, photos and a description of the problem can help identify the system.

Conclusion

Choose a Replacement That Fits the Fireplace and the Home

A replacement gas fireplace project should begin with the existing opening, venting, gas supply, electrical needs, and the type of experience the homeowner wants from the new system. From gas logs and burners to inserts and complete fireplace systems, the best option is the one that is compatible with the space and can be installed as a complete system.

The same fireplace running after AirPlease Missouri Chimney Services installed the new gas system
After: the new system installed in the same fireplace and running.

Schedule Your Appointment

Schedule a gas fireplace replacement consultation online or call 314-334-1554 to speak with a gas fireplace specialist.

Schedule Online Call 314-334-1554

Service Area

Gas Fireplace Replacement & Installation in St. Louis & Surrounding Areas

Gas Fireplace Replacement & Installation is available throughout the St. Louis metropolitan area. Our technicians travel across St. Louis City and St. Louis County, into St. Charles County, and over into the Metro East communities in Illinois. If you are not sure whether your address is covered, call 314-334-1554 with your ZIP code and we will confirm.

See the full list of communities we serve →