How to replace the seal of a fireplace, insert and stove? 

Why you should change the insert glass seal?

No matter what kind of heating you use, whether it's a fireplace, insert or wood stove, the door of your appliance is designed to be airtight. This tightness optimizes the heat distribution of your stove by preventing air leaks. Air only circulates through the adjustable damper of the insert, located at the bottom, which allows you to regulate the fire draft. It is essential to properly manage the sealing to ensure that your insert operates optimally.

First of all, the seal of your insert is guaranteed by the door seals. However, over time and depending on the efficiency of your appliance, its frequency of use, and the quality of your seal, it can be compromised. As time passes, the seal can deteriorate and it is therefore recommended to replace it, as well as the insert glass if necessary. This maintenance is directly related to the longevity of your appliance and will significantly improve its heating quality.

Another reason to consider renovating your heating appliance is the potential for cost savings. Indeed, a sealed stove consumes less wood, while a well-insulated insert reduces smoke and smells, thereby limiting dirt and deposits. As you can imagine, the seal of your insert is therefore a crucial element for your safety. If it is not well insulated, it can emit fine particles, carbon monoxide, nitrogen oxide, and many other components that can pose a significant risk to your health, and in rare but severe cases, lead to asphyxiation of those around you. It is therefore essential to regularly check the insulation of your stove. If you have any doubts, it is recommended to replace your door seal.

How to check the door seal waterproofing?

If you have any doubts about the sealing of your door gasket, it is recommended to contact a professional. However, if you still wish to check the condition of your gasket yourself, there are a few indicators to watch for. You may notice a deterioration of the gasket, such as fraying fibers, as well as an increase in the formation of soot on the glass of your insert. You may also hear clacking noises when your insert is in operation. If you observe these signs, it is advisable to replace your gasket to prevent any loss of sealing.

You can also use a piece of paper to quickly test the seal of the stove:

Insert the sheet between the door and the insert, then close the device. To remove the sheet, slowly pull it upwards. If it remains stuck, the seal should still be able to provide a tight seal, but if it moves, it is recommended to replace the seal without delay.

How to replace your window seal?

Step 1: Remove the door hinges

To remove the door from your insert, open it and lift it vertically. Then place it, with the interior facing upwards, on a flat surface.

Step 2: Remove the glass

Apply the lubricant spray and let it sit for a few minutes. Then, remove the screws, glass fasteners, and seals to release the glass.

During this step, you can take the opportunity to clean your door with a soft-bristled brush and remove any residue of glue or putty. If your insert door has debris or rust pieces, you can remove them using a brush. Feel free to use your vacuum cleaner to remove any trace of residue.

Step 3: Installing the window seal

To ensure the sealing of your heating appliance as well as the safety of your insert, it is recommended to replace the seal every year. Place the seals around the perimeter of the glass and adjust the length. Then, cut the desired length with your scissors. Please note that some doors do not have a seal, especially on the upper horizontal part of the glass.

Step 4: Put the glass back in place

To put the glass back in place, start by centering it and carefully placing it down. Then, screw the fixing brackets back in, being careful not to tighten them too much, as the glass needs room to expand and contract with temperature changes. If the glass is too tightly secured, it may crack due to heat or temperature differences. Simply make sure the glass is properly adhered and well-supported.

Step 6: Hang up your door

Once your heating device door is in place, put it back on its hinges. To avoid any sealing issues, it is recommended to wait at least 24 hours before relighting the fire, keeping the door closed. This will allow the seals to dry completely and ensure good sealing.