Broken Godin stove glass: how to choose and replace it ?

A broken Godin stove glass is not a lost cause. Whether it's caused by an impact, overheating or simply wear and tear, this kind of fault happens and can be sorted out quite easily once you know what to do. Here's everything you need to know to choose the right glass, fit it yourself and look after your stove properly.

Why does the glass on a Godin wood stove break ?

Before looking for a replacement, it's best to understand what caused the breakage. In most cases, glass that cracks or shatters on a Godin stove is down to one of these reasons:

  • A direct physical impact, often while loading the wood
  • Wood that's too damp, which produces violent spitting
  • Thermal shock caused by the temperature rising too quickly
  • A worn or missing glass seal that no longer acts as a cushion

This last point is often overlooked. When the seal around the glass deteriorates, the glass is no longer held in place properly and absorbs the vibrations and heat directly without any protection. As a result, it eventually cracks. That's why changing the seal on the insert or stove should be part of regular maintenance, just like cleaning.

What type of glass should you choose for a Godin stove ?

The glass used on wood stoves is not ordinary glass. We're talking about glass-ceramic, a material designed to withstand very high temperatures, often above 700C. This type of glass doesn't melt, doesn't warp and stays clear even after years of heavy use.

For a Godin stove, the glass has to match the specific model exactly. Dimensions vary from one model to another, and glass that's too small or too large simply won't fit properly. So you should always check:

  • The exact reference of the stove (shown on the rating plate)
  • The dimensions of the original glass (width, height, thickness)
  • The profile of the glass (flat or slightly curved depending on the model)

To find the glass suited to your stove, you can consult the Godin spare parts catalogue directly here: Godin spare parts. There you'll find the references sorted by model, which avoids ordering mistakes.

How can you replace broken Godin stove glass yourself ?

The good news is that changing the glass on a stove doesn't require any particular skills. You just need to be methodical and take a few precautions.

What you'll need

Before you start, get the following together: the new glass-ceramic glass in the correct dimensions, a replacement seal if the old one is damaged, a screwdriver or spanner depending on the fixing system of your Godin model, and a clean cloth.

The replacement steps

Start by letting the stove cool down completely, then remove the screws or clips holding the door frame in place. Carefully take out the shards of the old glass while wearing gloves. Clean the area thoroughly to remove all glass and old seal residue. Then fit the new seal all the way around the groove, position the new glass and close the frame, tightening firmly but without forcing it so as not to create any stress in the glass.

When you use it for the first time after replacement, raise the temperature gradually to allow the seal to settle into place properly.

Maintaining the glass and the inside of the stove or insert

Well-maintained glass lasts a great deal longer. Blackening is often unavoidable with use, but it comes off easily with the right products.

Cleaning the glass of an insert or a stove

To clean the glass of a fireplace insert, always wait until the stove is cold. Use a product made specifically for stove glass or, failing that, dampened newspaper dipped in the ashes. Ash contains very gentle abrasives that dissolve soot deposits without scratching the glass-ceramic. Rub in circular movements, rinse and wipe with a dry cloth.

Avoid ordinary household products such as standard glass cleaner. They don't withstand heat and can leave residues that burn the next time you use the stove.

Cleaning the inside of a fireplace insert

To clean the inside of a fireplace insert, start by removing the ash that has built up in the firebox using an ash shovel. Then brush the walls with a suitable wire brush to loosen any combustion residue. An ash vacuum cleaner will make it easier to suck everything up cleanly. Also remember to check the condition of the baffles, the internal plates that direct the smoke: if they're clogged up, combustion becomes less efficient and the glass blackens much more quickly.

When should you also change the seal on your stove or insert ?

The door seal of a wood stove is usually changed every two or three years depending on use. To find out whether it's time to change the seal on your fireplace insert, do this simple test: slide a sheet of paper between the door and the seal. If the paper slips through without any resistance, the seal is too worn. A faulty seal lets cold air in, which disrupts combustion, harms performance and speeds up the blackening of the glass.

Seals are sold by the metre as braided cord in various diameters. Check the diameter of the original seal before buying the replacement so you don't make a mistake.

The key takeaways

Replacing broken Godin stove glass is perfectly within reach, provided you choose the right reference and proceed carefully. Glass-ceramic is the only material suited to this kind of use. Alongside this, regular maintenance of the glass, the inside of the firebox and the door seal will let you enjoy your stove in good conditions for many years. To learn all about the complete replacement procedure, take a look at our detailed guide here: how to replace the glass of an insert or a wood stove.