I was really wondering if I could put them in my propane gas stove oven that has a pilot light on 24/7 that keeps the oven nice and warmish, not 99.5 I don't think, but not below 75 I would think. I'll try to find my oven thermometer and see what it will read with and without the oven door cracked open. Am wondering though if the gas "fumes" would cause any harm? Hot water bottles I have, gal. LOL. Can't be a "prepper" without one or 2 or 3! LOL. thanks for the response - would hate to lose Slow Whites.