Rebuilding 100lb Glass Blowing Furnace

Рет қаралды 5,799

Күн бұрын

Watch as Glass Artist John Gibbons demonstrates and explains how he replaces the cracked ceramic crucible, in his glass blowing furnace with a new fresh crucible. The crucible holds the molten glass in glass furnaces.

Пікірлер: 22

@Time_Traveling_Corgi 3 ай бұрын

What design changes would you make now that you have had this furnace for 2 years?

@caroc4327 2 жыл бұрын

Been watching the series Blown Away and I was wondering what was inside the main glass furnace. Thanks!

@Gibbonsglass 2 жыл бұрын

Thanks for watching. Yes the crucible is what holds the glass in my furnace, but I think on the show Blown Away they are using a day tank furnace which is a basin of special high temp bricks that can withstand molten glass for years.

@MicLash-mf2gn 4 ай бұрын

Question for you John, the crown of your furnace is it only fiber frax? How energy efficient is that as if you used k 23 fire brick then backed it with fiber frax. As my next question what is your bill roughly to run that furnace using natural gas. Thank you

@kevincronin60181 2 жыл бұрын

So this design heats the crucible from the bottom / sides, not from above? I've seen a few videos and they all blow the heat downward towards the crucible. Liking your design better and assuming way more efficient.

@Gibbonsglass 2 жыл бұрын

Not sure how efficient but my design uses more refractory so it costs more to build.

@greg5145 2 жыл бұрын

Heating a furnace from above is for more generalized heat dispersal. From the sides is for a more specified heating location, such as putting goblets you are working on directly on the flame. Heating from the back wouldn’t make sense because the heat is being pushed directly out the opening in front. Might work for heat up while the door is shut for hours tho which is what it looks like in this case.

@robertthomas7053 2 жыл бұрын

I was trying to find information on building my own furnace but find that it’s really hard to get any info. Can you offer any suggestions on why I can get more information on building furnace’s?

@Gibbonsglass 2 жыл бұрын

I used two books to come up with my designs for my self built studio. I recommend both. Glass Notes by Henry Halem and A Glass Blowers Companion by Dudly Giberson. Thanks for watching and I hope this helps! I don’t think either book shows how to build a furnace so that the crucible comes out of the front or side but that would be way easier to change the pot than lifting the top of the furnace to get the pot out.

@Gibbonsglass 2 жыл бұрын

Not sure about efficiency, but the top fired furnaces are built of less refractory and also mine is more difficult to rebuild than a type of furnace where the front comes off to replace the crucible. I hope this helps. Let me know if you have anymore questions.