This video shows you how to replace your heat resistant stove glass and door seals on your wood burning stove.
Schott Robax glass is a high quality heat resistant glass made in Germany. Looking after your stove glass will help increase the life of your replacement stove glass.
Schott Robax woodburner glass will withstand temperatures of up to 760 degrees Centigrade, however with coal and wood this temperature can be easily exceeded - so try not to add too much fuel and keep the intake vent half to three quarters open. A temperature gauge will help to maintain the correct operating temperature.
If your wood burning stove has a airwash system then make sure the dial or lever is in the on position. Airwash directs clean air across the inside of your stove glass preventing a contamination from wood resins and smoke deposits. If you are looking to purchase a wood burner, then it is worth paying the extra for an airwash system.
Clean your stove glass after every use will make it easier to keep it transparent, but do wait for it to cool before cleaning with a damp cloth. For stubborn stains use vinegar or a commercial stove glass cleaner and then rub dry with a soft cloth. Avoid using anything abrasive which will leave scratches which will obscure a clear view of your fire.
When replacing your heat resistant stove glass it is important not to over tighten the brackets that secure your stove glass as this can cause your glass to crack across this pressure point when your stove glass heats. Also don't forget to inspect rope and tape seals and replace if worn.
Your wood burner door rope seals creates an air tight seal preventing harmful gases, produced by burning wood and coal, from escaping. They also prevent air being drawn into the fire chamber via gaps in damaged or worn seals. Air leaks in these rope seal can cause the glass to overheat due to excessive air through this gap rather than through the stoves air intake system - this in turn can result in your glass cracking. It is essential to inspect these door seals for wear and rear and hardening and replaced if necessary.
Has your wood burner stove glass cracked without any obvious reasons? Stove glass varies in both quality and price so look out for quality brands like Schott Robax which is about the best you can get and is made in Germany.
When you light your fire your heat resistant stove glass goes from room temperature up to 700 degrees Fahrenheit in a short time and like any material that's heated there is expansion that occurs, likewise when your fire goes out, the glass contracts, so after time your stove glass does a lot of expansion and contraction. Now this won't cause your glass to crack but over time your glass is under going invisible wear and tear. What about if your glass heats up too quickly or cools to rapidly, well we know that this can cause stove glass to crack.
Too much heat is another contributing factor to your stove glass cracking and even the best replacement stove glass has its heat limitations, so try not to over stoke your fire. You can monitor your stove temperature with a magnetic temperature gauge to help maintain the optimum temperature.
Besides from closing your wood burner door on a protruding log the most common reason for your stove glass to crack is incorrect glass installation. If the brackets that hold your stove glass are over-tightened this will create a pressure point when the glass expands this can result in the glass cracking along the this pressure point. So if your replacement heat resistant glass cracks in line with any of the retaining brackets, then you can be pretty sure it has been over tightened. The general rule is to friction tighten the brackets and then loosen off about a quarter of a turn.
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