dave wrote:

anybody know the flame temperature of a gasoline "plumbers blowtorch"
type stove when it's burning blue? the kind in the center-left of this
picture, on the dolly...

http://machines.freehostia.com/sasge...s/photo63.html
babbitt_pouring06.jpg

I want to use it to pre-heat (heat soak) a pretty large piece of steel,
prior to brazing some stuff to it...

thanks for info guys :-)

toolie

It is not so much temperature, it is how many btu's you can put out on target.

Is that what they used to melt lead to seal soil pipe before PVC?

Wes