Put your tank outside. Your offspring and grand offspring will thank you!
I had two 20# tanks filled a few winters ago. Put them in the garage. As spring came around and in the late afternoon I could smell gas.
Checked everything…nothing was leaking. The tanks were not connected to anything.
The following day I notice the sunlight was making it through the garage and lighting up one of the tanks. Yes, then I heard the faint hiss of propane leaking.
Might have been filled too much? I don’t know, but my tanks are stored outside now.
Just because some people get by storing tanks inside and get away with it, doesn’t mean I’m going to take a gamble.
Your call.