Hand Tools Archive

Subject:
Still time to rethink my burner choice

David Barnett
I know there are a few glass batchers, such as Mike Firth, who've used Ron's designs and mods for crucible furnaces and glory holes, but Rex Price has taken those early off-the-shelf-plumbing burners to whole 'nother level. I should take a fresh look at his hybrids now that I'm much more knowledgeable about chamber dimensions, exhaust holes and crucible volumes in contrast to the very different requirements of forges, which have lots of open and unused space and don't trap heat like a furnace or kiln.

Although Rex makes his two largest burners for foundry apps, there's still a lot of differences in BTU vs. chamber sizes to reach and hold the temps necessary to melt quartz as opposed to metals. He states on his site that he's not the guy to ask about foundries, kilns, and so on, but his burners could sure do the job in the right design with higher heat refractory.

For a small glass furnace, much smaller-sized Riel-type burners are often used, but I'd like to avoid blowers so lean strongly to venturi designs, as do most ceramicists, as well. One or two of his 1/2" Shorty burners might do the trick for a small crucible for primitive soda-lime or potash-lime glassmaking.

I'd set aside using a Riel or aspirated hybrid, but now that you've brought them back to my attention, I'll have a another look. They're pretty nice burners, if a little more than I'd like to pay, but I sure don't feel like making even a Riel/EZ-burner and don't want to turn and tune a nozzle or fiddle with making a decent choke on the venturi. It's not the turning that's tough, of course, but getting the contours right. I'd seen the Shorty on Riel's site some time back but had forgotten all about it, so thanks for the link. I'd never been to Price's site, at least not since it's looked like it does now.

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