Those Piezo electric starters don't work at any altitude. They might work when you walk out of the store, and maybe even the first time that you try to use them, but they stop working as soon as you need to count on them. They are furnished on a lot of products because the manufacturer can raise the price of the product a little and unsuspecting first-time buyers are ignorant enough to pay a little extra to get that feature.
I live at 6,400' elevation and the Piezo electric starters on my lanterns don't work. They don't even work on the propane barbeque that sits on my patio.
KC
