Fireplace Insert Installation: Transform Your Hearth for Efficiency & Comfort

Traditional open fireplaces lose most heat up the chimney, with less than 10% of heat radiating into your living space. A fireplace insert fits directly into the existing firebox, creating a sealed combustion chamber that dramatically increases heat output—often above 70–80% efficiency.

Inserts reduce creosote buildup by controlling airflow, minimizing chimney fires. They also provide cleaner burns, reduce environmental emissions, and allow you to burn less fuel for the same heat. Whether you want a wood insert for cozy ambiance, a gas insert for convenience, or an electric insert for a maintenance-free option, installing an insert transforms an inefficient hearth into a reliable heat source.

Additionally, fireplace insert installation can increase home value, improve indoor air quality by reducing smoke, and give you precise control over temperature and burn rate.

• Wood-Burning Inserts
  Traditional and authentic—designed for seasoned hardwood, these inserts feature stainless steel baffles and insulated glass to maximize burn efficiency and minimize emissions.
• Gas Inserts
  Offer instant heat at the flip of a switch or thermostat control. Available in natural gas or propane, with decorative logs or realistic ceramic embers, they provide high efficiency without chopping wood.
• Electric Inserts
  Ideal for homes without a chimney, electric inserts plug into a standard outlet, producing realistic LED flame effects and supplemental heat without venting requirements.
• Pellet Inserts
  Use compressed wood or biomass pellets delivered via an automatic hopper. They provide consistent heat output, require minimal ash removal, and often include programmable thermostats.
• Multi-Fuel Inserts
  Designed to burn both wood and coal or corn, offering flexible fuel options to meet changing needs and preferences.

1. Professional Inspection & Measurements: A certified technician inspects the existing fireplace and chimney structure, measures flue dimensions, and confirms there are no major cracks or obstructions. Proper sizing is critical for safe, efficient operation and code compliance.

2. Flue Liner Installation or Upgrade: Most inserts require a stainless steel flue liner sized to the insert’s specifications. If an existing liner is damaged, it is replaced or relined. A correctly sized liner improves draft and prevents heat transfer to masonry.

3. Insert Placement & Leveling: The insert is lowered into the firebox, centered, and leveled. Technicians adjust legs or install a base plate to ensure the unit sits squarely, maintaining a proper seal against the firebox opening.

4. Vent & Chimney Connection: For wood and pellet inserts, a double-wall insulated chimney pipe is connected to the liner and extends through the roof termination. Gas inserts connect to a dedicated gas line and vent into the liner. Electric inserts require only a 120V outlet.

5. Surround & Trim Installation: Decorative trim kits or surrounds are installed around the insert face to cover gaps, creating a seamless transition between the insert and existing fireplace opening. Finishes match the home’s décor.

6. Safety & Performance Testing: Technicians perform a draft test to verify proper airflow, check for gas leaks (if applicable), and light a test fire. They inspect glass gaskets, door seals, and blower operation. A final walkthrough explains operation, maintenance, and safety precautions.

Code Compliance & Safety: Certified installers ensure your insert and flue liner meet local building codes and manufacturer specifications, preventing hazardous smoke or carbon monoxide leaks.

Optimized Efficiency: Proper insert sizing, liner alignment, and vent configuration maximize heat output, reduce emissions, and minimize creosote buildup.

Warranty Protection: Many manufacturers require professional installation to maintain product warranties on inserts and liners. A certified install protects your investment.

Expert Guidance & Maintenance Tips: Installers provide operational training, fuel recommendations, and cleaning schedules—helping you enjoy peak performance and longevity from your new insert.

How do I know which insert size fits my existing fireplace?

A certified technician measures the firebox opening, depth, and flue dimensions. Inserts come in standard widths (20″, 24″, 30″, etc.), and your installer will recommend the correct size to ensure a proper draft and safe clearance.

Can I install a gas insert in a wood-burning fireplace?

Yes—most masonry wood fireplaces can accommodate a gas insert. You need a nearby gas line, proper venting, and a certified installer to convert the flue liner and install the insert to code.

What maintenance does a wood-burning insert require?

Annual chimney sweeping and creosote removal are essential. You should also inspect gaskets, seals, and glass for damage. A pellet insert requires weekly ash removal and periodic inspection of feed mechanisms.

How much does professional insert installation cost?

Costs vary by insert type, fireplace condition, and region. Typical installation ranges:
• Wood insert: $2,500–$4,500 (including liner, labor, and materials).
• Gas insert: $2,000–$3,500 (including gas line hookup and venting).
• Electric insert: $800–$1,500 (plug-and-play, minimal modification). Always obtain a detailed, written estimate from a certified installer.