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Don Klipstein

In ,
wrote:

SNIP to here

You can solder with a propane torch, but you can't braze.
Solder melts around 450F, brazing at around 1200F.
That's why you need a MAPP or acetylene torch to
braze. Also, with something large like a heat exchanger,
it's obviously going to be capable of dissipating a lot of
the heat coming off that turkey fryer.

SNIP from here

I have brazed with propane before, though generally only on smallish
things. I find brass braze and bronze braze to require temperatures that
achieve a glow of "cherry red", which I consider a "dimmish neon
slightly reddish orange". As in around 1500 F.

A turkey frier sounds to me like closer to one of those things used to
melt lead for soldering in-street plumbing that gets soldered, or whatever
it is they use those burners for. I think one of those can probably
be used to disassemble a brass-brazed-lugged bicycle frame, though maybe
with some difficulty.

Then again, is the heat exchanger brazed with brass or bronze braze, or
is it silver-soldered / silver-brazed? "Silver solder" ("silver braze")
melts at a lower temperature than brass and bronze brazes do. If the heat
exchanger is silver-brazed, then I think a turkey frier's frame can melt
the braze.

Now for another thing: Why use a turkey frier rather than a propane
torch? Using a turkey frier even as directed seems adventurous enough to
me, let alone abusing a turkey frier. That sounds to me very adventurous,
possibly outright dangerous. A propane torch sounds to me so much more
suitable. I wonder if the OP is trolling.

--
- Don )