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G-Coupled
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For USD160 for a 5L stirrer/mantle down to USD60 for a 500ml one, yes - I am (or hopefully will be) so into them.
If they're just OK as is, or can be easily tweaked to work safely and well, then at these prices, IMO they could be nothing short of revolutionary for
affordable home chemistry. 
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vibbzlab
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If that mantle has a stirrer I would have definitely bought it.
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draculic acid69
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Again is that bexco mantle regulated with a Variac in that boxy part where the dial is?why is there a rectangle attached to the mantle when a circuit
board will do.
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vibbzlab
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That's just hollow . It has nothing in it. Waste of space
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Sulaiman
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I do not know, but I suspect that there is a simple bi-metalic switch mechanism in that box,
the size of the box may be arbitray, or to insulate the switch from the heat of the mantle,
at those prices an inbuilt variac is very unlikely.
The good news is that you have plenty of space to replace the (presumed) bi-metalic controller with a cheap eBay triac based 'dimmer' module.
(I really like those modules - fine control of constant power)
The only difficult part for a non experienced electrician may be a little re-wiring.
CAUTION : Hobby Chemist, not Professional or even Amateur
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vibbzlab
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Take care not to die of electrocution. That stuff is really dangerous
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RogueRose
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IDK if you have ever tried something like a router speed control or a dimmer but I think those should work well for a heat gun as it's a normal
resistive load - nichrome. The controllers are basically triac controllers and I know most can do 1500w or more. I use mine on a vacuum cleaner
(universal motor - brushed AC) and it works great at controlling how much suction or "blowing" (lol) I get and it the motor doesn't seem to mind even
hours on end.
I know the 2000w triac "motor controllers" on ebay ($4-10) also list uses as heater controller, which is also a plain resistive load. I'm guessing
that is what is in my more expensive "Master Appliance" heat gun (750w only) and it has a little triac control for only the element, so it should be
good.
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vibbzlab
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What do you guys think on butane torch
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G-Coupled
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Clean when hot and blue - IDK about how clean they are running cooler with a more yellow flame. Open flame, though.
If open flames don't bother you, then a lot of early experimenters used little Methanol burners that worked well enough. Should be cheap as chips to
buy and to run.
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vibbzlab
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I do use Alcohol burner now
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