I feel like I've been told it's bad to keep reboiling the same water. That said I have no idea if that's true, I have water all day in my Kurig and that's always been fine.I can't imagine why it wouldn't be safe. I use this kettle and like it a lot.
Thanks again for the advice.
Edit: I noticed this kettle has a temperature control, my Nesco only has just off boil. Price is great on the linked kettle.