Big Bang

Hummmmmmmm.......


Fridge ignitor is 'outside'
Furnae ignitor is 'outside'
Water heater ignitor is 'outside'

Propane to those appliances can not 'build up' as they are outside.
All three of those appliances have 'lock out' when main flame is not proven

Stove/oven is only appliance inside.......but doesn't have auto ignition devices
Unless oven pilot flame was on and a stove top burner knob got bumped 'on'

Hummmmmmmmmmm........