Can I use a razorblade on my glass to remove creosote?

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There should be no coating other than what you want to take off.

If you are careful to keep the bade flat so you don't scratch the glass with a corner this should be fine.

A wet newspaper dipped in ashes should work as well. (Not if the window is hot.)
 
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Burn it off with a hot fire or two. If you can’t your wood is too wet or draft is inadequate.
 
Yes you can but I usually file the corners off
 
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On the HI500, I use a razorblade tool to scrape the creosote when I open the door to load logs sometimes.
Amazon product ASIN B0002SR88CIs it safe? Is there some coating on the glass I may be removing, compromising it's integrity?
I just wet a paper towel, then dip in the white ashes and the residues on the glass easily rub off in the mornings when the stove is cooler. Then, use a damp clean paper towel to wipe streak-free. Cheap, handy and easy!
 
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