[BC] Irons for silver soldering copper strap

[Mike McCarthy]

I've never had a problem consuming excessive acetylene.  I usually get 
about 2.5 bottles of acetylene (B tank) to a 80cu. ft. O-2 bottle.  I get a 
4:1 ratio with the MC tank and 20 cu. ft. bottle used in the little caddied 
kits.  Granted, the MC tanks don't last long under heavy use, their life is 
triple/quadruple that of a MAPP bottle.

If you're using more acetylene than MAPP with O2, there's something not right.

FWIW, I never had any luck heating strap sufficiently with MAPP alone to 
flow 15% silvaloy.  Which is all I use with strap 2" and above.  And MAPP 
is SO much more than acetylene if you purchase the gas at a welding shop.

MM

At 02:30 AM 10/16/2007 -0400, Alan Alsobrook wrote
>I've never tried to use an iron on strap, just not enough heat. What I do 
>use is a oxy/mapp torch. I had been using one of the small ones you get 
>from the home improvement stores, but recently during a ground system 
>project I upgraded to a full commercial system. I first used oxy/acetylene 
>but found that it took no time to run out of acetylene, and thus was quite 
>expensive. After going through 2 tanks of gas I next bought mapp gas and 
>found it works great and lasts forever. Looking at the comparison charts 
>for the 2 fuels, mapp burns with almost the same heat and temperature as 
>acetylene, (not enough difference to notice) and is more stable and far 
>less expensive. Since mapp is a liquefied gas, rather than a dissolved gas 
>you don't have to guess how much you have left, just pick up the bottle 
>and shake it.
>
>Jason Houts wrote:
>>Hi Guys!
>>Where are you buying your high temp soldering irons for copper strap?
>>Remember the old large wood handle electric irons from back in the day?
>
>--
>Alan Alsobrook CSRE AMD CBNT
>St. Augustine Fl. 32086 904-829-8885
>aalso at Bellsouth.net
>
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