Thanks for the thoughtful responses. Indeed there is a tension between getting the system function required and not breaking the equipment too quickly (it's a test rig), and that prompted the posting. I'm hoping someone has insight into general nichrome wire failure due to overheating but, as...
Am experimenting with an Omega Engineering AHP 7561 standard air heater rated for up to 240v. Specs include ability to keep a 20 cfm flow exiting @1000F while pulling about 10A @220v.
Nichrome melts around 2400F. I'd like to produce small bursts (lasting a few seconds) of very hot air, like...