Gas fireplaces are a popular choice for many homeowners as they provide warmth and ambiance without the hassle of maintaining a wood-burning fireplace.

They use natural gas or propane as fuel, making them a convenient and energy-efficient option for heating your home. However, after multiple uses over time, the gas fuel in your fireplace will eventually run out and need to be replaced. With the right tools and knowledge, replacing the gas fuel in your fireplace is a simple and straightforward process. In this blog, we will discuss how to safely and effectively replace the gas fuel in your fireplace and how New England Hearth & Home can help with our professional fireplace expertise and services.
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How to Know When Gas Fuel in Fireplace Is Empty
It is important to ensure that your gas fireplace is completely out of fuel before attempting to replace it. Before beginning the replacement process, turn off the gas supply and allow the fireplace to cool down for at least 30 minutes. Once cooled, check the fuel level gauge on your fireplace. It can usually be found near the bottom of your fireplace or on the control panel. If the gauge reads low or empty, it is time to replace the gas fuel.
Tools & Materials You Will Need
To successfully replace your gas fuel, you will need a few tools and materials. These include:
- Gloves: It is always important to protect your hands when handling any type of fuel. Wear gloves to avoid direct contact with the gas fuel.
- Gas Canister: Gas fireplaces typically use a small, portable propane gas canister as fuel. Make sure you have a spare one on hand before starting the replacement process.
- Wrench: Depending on your specific fireplace model, you may need a wrench to loosen and remove the empty gas canister.
- Clean Cloth: A clean cloth can be used to wipe down any spills or drips during the replacement process.
Steps for Replacing Fuel In Gas Fireplaces
When replacing the gas fuel in your fireplace, it is important to follow the right procedure to avoid any accidents or damage.
Turn Off Gas Supply

The first step in replacing the fuel is to turn off the gas supply. As mentioned above, this is crucial for your safety and to prevent any gas leaks. To turn off the gas, locate the shut-off valve near your fireplace and turn it to the “off” position.
Wait 30 Minutes to Let the Fireplace Cool
After turning off the gas supply, it is important to let your fireplace cool down for at least 30 minutes. This will allow any remaining heat to dissipate and make it safer to handle.
Remove Empty Gas Canister
Once you can feel that the fireplace has cooled down enough to touch, you can begin removing the empty gas canister. Use a wrench if necessary to loosen and remove it from the fireplace.
Install a New Gas Canister
Carefully insert the new gas canister into the fireplace, making sure it is securely in place. If your fireplace model requires any additional connections or attachments, make sure to follow the manufacturer’s instructions for proper installation.
Check for Leaks
Before turning on the gas supply again, it is important to check for leaks. You can do this by applying a mixture of soap and water around all connections and valves. If you see bubbles forming, there may be a leak, and you should not continue lighting the fireplace.
Turn the Gas Supply Back On
After placing the new gas canister and checking for leaks, you can turn the gas supply back on. Make sure to do so slowly and carefully.


Test Fireplace
With the gas supply turned back on, you can now test your fireplace by lighting it up. If everything is working properly, you should see a steady flame without any unusual sounds or smells.
Common Mistakes to Avoid When Replacing Gas Fireplace Fuel
While the process of changing a gas canister for your fireplace may seem simple, there are some common mistakes that should be avoided to ensure safety and proper functioning. One of the most important things to remember is to always turn off the gas supply before attempting to replace the canister. This will prevent any accidents or leaks. Another mistake to avoid is not properly securing the new gas canister in place. This could lead to leaks and potential hazards. Additionally, it is important to follow the manufacturer’s instructions for your specific fireplace model, as each one may have different requirements for the installation and replacement of gas canisters. Lastly, never attempt to use any type of tool or force when removing a gas canister, as this could cause damage or breakage that could result in leaks or malfunctions.
Contact New England Hearth & Home in Canton, MA, for Professional Gas Fireplace Installations, Replacements, & Maintenance Services
At New England Hearth & Home, we specialize in providing top-quality gas fireplace installations and maintenance services in Canton, MA, and across the South Shore. Our team of experienced technicians can help you with all your gas fireplace needs, from choosing the right model to installation and regular maintenance. We also offer replacement services for all models and can help walk you through any necessary steps for changing gas canisters properly and safely. With our experts, you can rest assured that your gas fireplace will always be functioning safely and efficiently, providing warmth and ambiance to your home for years to come. To learn more about our services and get started, visit our showroom, submit an online service request, or call us at 781-562-0771!