I have a small run of wall-to-wall carpet that I want to join along a seam in a
hallway -- maybe 3 feet across.

I purchased some carpet heat bond tape at the Borg.
Can I use an old clothes iron to activate the teap and make the seam
or do I need to rent a real seaming iron?

If so, how do I use the iron properly?
- What setting?
- How do I heat the tape?

- How much time do I have after heating the tape to position it before
it hardens?

Will this make a big mess and ruin the iron?