Lots of people use propane exactly as you've described. Here's an interesting fact about propane that most people don't know. When it's in the tank sitting under your charcoaler. Or outside your house.... it's under a constant state of boil. It's boiling feverisly. That's what creates the pressure inside the tank. To make it stop boiling you would have to lower the temperature inside of the tank to -39 degrees. So on a nice hot afternoon the pressure on the tank is typically around 220# psi.
You have to be Hank Hill...