[BC] Irons for silver soldering copper strap

[Alan Alsobrook]

I don't understand that, MAPP and Acetylene have almost the same heat 
output. I use 15% silver as well and can easily do everything with MAPP 
that I did with C2H2, including 4" strap to tower base. Since switching 
to MAPP, I've used 2 bottles of O2, and still have 75% of my MAPP tank 
remaining. Work done with this amount of fuel includes about 200 #10 to 
3" strap connections, several 3" to 3" connections, and 10, 1/4" rebar 
cuts along with cutting up a FM20h power supply cabinet for disposal. 
Perhaps I was using the Acetylene wrong, but sounds like you were using 
the MAPP incorrectly as well.

Mike McCarthy wrote:

> 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.

-- 
Alan Alsobrook CSRE AMD CBNT
St. Augustine Fl. 32086 904-829-8885
aalso at Bellsouth.net