Wood stove glass replacement becomes necessary when the panel becomes cracked. This can happen due to thermal breakdown, but that takes years of use. The more likely scenario is that the panel breaks due to impact, or stress due to tightening the mounting screws too tightly.

What to do when your wood stove glass breaks? A common misconception is that you need wood stove tempered glass, but in reality this is the type found on glass fireplace doors or a glass fireplace screen. It’s stronger than ordinary glass, but it’s not made for constant exposure to high temperatures and close contact with flame. Tempered glass for wood stove is a misnomer.

Wood stove replacement glass is actually not glass at all. It’s a transparent ceramic panel that looks like glass but performs like ceramic. Look for trade names like neoceram and Pyroceram III. Neoceram is 3/16 inches thick. It has a slight amber tint and can withstand temperatures up to 1,600 degrees F. This is far more than the tempered glass fire screens you would use in a fireplace.

Glass replacement for a wood stove is an easy operation but requires concentration, just like any other job involving expensive, breakable material. First you’ll need to order the replacement panel. A dealer for your brand of wood stove is the first place you should look for this, since you know you’ll be getting a perfect fit if you go this route. If you can’t find a dealership, there are sites online that promise an exact match for your old ceramic glass panel if you give exact measurements. These sites can even match curved panels and special cuts by working from a drawing or diagram.

When you have your replacement panel, remove the wood stove door lay it next to the new panel on a large work table with plenty of good lighting. Put down some old towels for padding so you don’t crack the new glass. Carefully remove the old panel and set it aside. If your model has a gasket between the panel and the door, inspect it and decide whether to replace it. This item is a dealer part, but it’s set up for easy replacement. Most of them come with a built-in adhesive strip. You simply peel off the backing and press it into place.

Now comes the part that requires concentration. Lay the replacement panel over the gasket and install each screw but don’t tighten them yet. When all of the screws are in place and tightened just enough to touch the panel, begin tightening them one turn at a time. Work in pairs by starting with the two across from each other closest to the center of the panel. Move to the next two across from each other. Always tighten the screws in pairs across from each other, and never tighten them more than one turn at a time. Less is more with this part of the job. What you want to avoid is getting one screw too tight and then snapping the new glass panel in two when you move to another screw and tighten it. Check the glass for movement as you tighten and stop as soon as it’s securely in place.

Reinstall the stove door, and your wood stove glass replacement operation is complete.

If you have wood stove glass on your stove at home, then you probably already know that it looks absolutely gorgeous when the glass is clean. You’ve also probably learned that it looks pretty bad when the glass gets coated with soot. Unfortunately, this can happen fast. Owners of wood stoves with glass doors report having to use wood stove glass cleaner once a week at minimum to make it possible to see the fire inside their woodstove. If you burn softwood or set the draft too tight, you can easily smoke up the glass within hours after you clean it, which can be frustrating to say the least.

Here are some tips for cleaning wood stove glass:

*Practice good burning technique to minimize soot buildup on your wood stove glass. Avoid burning softwoods like pine and birch, because they not only put soot on the glass, but they build up creosote in your chimney, which increases the risk of a chimney fire. Poplar seems safer as long as it’s properly seasoned and burned hot. Avoid burning wet or freshly cut firewood of any type for the same reason. Also give your fire plenty of air when you first add a log to the firebox. Let it burn at full draft until the fresh log is on fire and burning by itself. Only then should you choke down the draft to slow the fire down.

*Try using wet ashes to scrub your glass wood stove doors. Wood stove owners report that this works like a charm. They’re cheap and there’s no lack of supply. Use a dampened newspaper as a scrubber so you can just throw it away afterward.

*A glass cleaner with a silicone additive will help you go longer between cleaning your wood stove glass doors. Users also report that it makes cleanup faster and easier.

*Although some users report good results with ammonia-based window cleaners, others report that it leaves a rainbow sheen on the glass that’s difficult if not impossible to remove. If you try this technique, test the cleaner in a non-conspicuous area of your woodstove glass before you do the whole thing.

*Other stove owners have had good results scraping the wood stove glass gently with a single edge razor blade. This can indeed leave scratches on the glass, so proceed with caution.

*The safest cleaning medium for wood stove glass is the one recommended by the manufacturer: good old dish soap and water with white vinegar added.

*Jotul wood stoves have a built-in airflow glass cleaner that minimizes the need for cleaning. If you don’t mind paying for a top of the line stove, this is probably the best solution to the problem.