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Microwave Glass Turntable as Wood Stove Door?

 
master pollinator
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Location: Canadian Prairies - Zone 3b
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I have a crazy notion of using a glass microwave turntable as a door in a small outdoor wood stove.

As I understand it, it's high purity glass that can be heated almost red hot without shattering.

And it's free stuff that can be saved from the landfill!

What do you guys think?
 
Rocket Scientist
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Location: Kaslo, BC
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I'm not speaking from experience but I would say that there is a very high chance that it is not the type of glass that would go to a very high temperature before it cracked or shattered.
I have however tried both layers of an oven door glass in my batch box, and after one fire was shattered all over the floor.
Good success with pyrex casserole lids (but don't recommend them)
Really good success with salvaged ceramic glass range tops as well.
I guess if you really wanted to know for sure, light an outdoor fire and prop it up close to the flames and wait.

Oh yeah, be sure your standing back about 30 feet behind a riot shield just in case.
Also make sure there's nothing around you that you don't want impaled with glass either...kids, pets, your Lamborghini etc....
 
pollinator
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it's actually pretty impure glass with additives (boron)in it to stop it shattering but it is resistant to thermal shock around 180C difference in temperature will shatter it depending on the exact glass for a microwave turntable I might go under that as it's probably not particularly high quality.
The melting point is very high (500-800C) so that shouldn't be an issue at all. All in all yes you can probably use it but it may crack if the edges stay to cool when it is in use.
 
Douglas Alpenstock
master pollinator
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Okay, thanks for your advice. I am not a fan of shrapnel. I guess that's why wood stove glass (transparent ceramic) is so darn expensive.
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