Coldheat Soldering Iron - Any Good For Making Metal Masts?

[Steve Adams]

Has anyone heard of or used the coldheat soldering iron? If so, would it be appropriate for fixing spars and masts together? I have included the site link below if anyone wants to take a look at it.
Since I am all thumbs, the easiest but still effective way to attach metal rods to make masts is what I am looking for.

Thank you for any help or advise.

Steve Adams

http://www.coldheat.com