Do you try to protect your onsite backup from fire?

I fully understand backup in layers. Ideally you want an onsite backup, and an offsite backup. But for the onsite... do you even try to protect it from fire?

If not, doesn't that mean all your "fire" protection is really just the one online layer?

And if you do, where do you get such a thing. I have looked around, I can't find anything that actually lists hard drives as protected. Like sentry safe has "data protection" safes, but they say this

"CDs, DVDs, memory sticks and USB drives up to 1700°F (927°C) for all FPW base models. These products are NOT intended to protect computer floppy or 21⁄4” diskettes, cartridges, tapes, audio or video cassettes, or photo negatives. "

That doesn't seem to include HDD or SSD. So I started wondering if anyone actually tries to protect their onsite backup from fire.