Jul 21, 2015 - 12:07 PM
Yes, you can use CB 80 under the house. It is not a good idea to use any aerosol around an open gas flame. It's not that the contents are flammable, it's the mist particles. If the mist is too concentrated, it can become flammable. So the rule of thumb is that if you are using a heavy fog, then you need to turn off pilot lights. Hope this helps.