For future reference, a blow dryer will work if it's only a small area that's frozen. There are also heat guns available, which are basically like a blow dryer but much hotter and much more expensive. The best way to stop freezing is to keep the pipes out of the elements - wind is your worst enemy. Pipe insulation will help a little, but you really want to close in the area where the pipes are.
Know also that in the earlier example you cited, the act of thawing out the pipe did not cause the burst. The freeze itself is what burst the pipe, it just didn't become evident until it thawed and the water started flowing out of it.
Know also that in the earlier example you cited, the act of thawing out the pipe did not cause the burst. The freeze itself is what burst the pipe, it just didn't become evident until it thawed and the water started flowing out of it.