5 out of 5HardRequires running gas and electrical lines, and working on the roof
About $500 and up, depending on the size of gas fireplace
6 to 8 hours
Want to turn on your fireplace at the push of a button? To make this upgrade to your existing fireplace, you can install a gas fireplace insert.
Since this process requires working with vent pipes, electrical, and the gas supply, we recommend working with a professional instead of doing it yourself. In the video above, and step by step instructions below, we show you how to install a gas fireplace insert step-by-step.
How Much Does It Cost to Install a Gas Insert Fireplace?
Gas fireplace insert installation costs start at about $500 and up. This depends on the size of the fireplace. According to Home Advisor, the gas fireplace insert itself can cost about $2000.
How to Install a Gas Fireplace Insert in 15 Steps
- Run electrical power to fireplace and install a duplex receptacle.
- Remove existing chimney cap and damper from top of chimney.
- Drop both airflow intake and exhaust liners down the chimney flue.
- Use high-temperature silicone sealant to secure top plate to chimney top.
- Screw a termination fitting onto ends of the liners.
- Install a weatherproof cap onto the termination fitting.
- Insert a chimney cap into the furnace flue.
- Run new gas line to fireplace.
- Connect a flexible gas-supply line to gas line in the fireplace.
- Plug in the power cord from the fireplace insert.
- Make final gas connection between flexible gas-supply line and fireplace insert.
- Slide the insert into place, then turn on the gas.
- Make exhaust and intake connections at top of insert using high-temperature silicone sealant.
- Install glass doors to the fireplace insert.
- Test fireplace insert using the remote control.