"Glassify" a chimney ?

I had breakfast with a Canadian Ham radio friend today who said that they used to ocassionally burn broken glasses in their coal stoves to "glassify" the chimney. He said the coal gets so hot that the glass will MELT and deposit on the chimney sides, sealing the cement between the tiles.
Anyone hear of that ? Pro's/con's?

I would think it more likely that the glass would melt and make the queen mother of clinkers.

Only glass from canadian Whiskey bottles would work for this!

Give 'er a try & report back!

Just some speculation on my part and assuming there is glass particles in the gases.... The particles would cool well below any level they would need to adhere to the sides of the chimney plus you will already have dust and dirt particles on the sides of the chimney that will prevent adhesion.

You can certainly melt it with a coal fire though, at least to the point where it s pliable. We used to do this frequently with bottles in a wood fire. The idea was to try and make an ash tray but the bottle would usually break during the process and those that did survive were usually very brittle.

No plan to do this, and as one of those comedians on Comedy Channel says "Nay!, Nay!" Interesting that glass will melt, likely they used coal in days of old to make glass.

Like Richard I have melted down a number of beer bottles in a wood fire in my life. I also don't see how any glass would be vaporized or atomized and carried into the chimney to seal cracks.

Steve.N wrote:I would think it more likely that the glass would melt and make the queen mother of clinkers.

My thoughts also.

Somebody is getting their leg pulled big time I think. It reminds me of new mechanic helpers being sent to the parts department to get a can of compression.

It reminds me of new mechanic helpers being sent to the parts department to get a can of compression.

or a Muffler Bearing.

spc wrote:

It reminds me of new mechanic helpers being sent to the parts department to get a can of compression.

or a Muffler Bearing.

I just paid the dealer $248.72 to replace all 4 muffler bearings on my truck only to find they installed them upside down! Now they have to re do it but for half the price