I have a few questions about propane. Specifically the 20# bottles (typical white BBQ grill bottle) and 1# bottle (green Coleman type).

1. What is the head pressure at room temperature?

2. What do typical regulators drop the pressure down to?

3. Is there a standard pressure that grills/stoves use?

4. In regards to the 20# bottles, is there a difference between connecting a line that screws to the outside of the bottle fitting versus one that screws into the fitting?

Thanks in advance!

Thanks. Spudgunr  certainly answered my questions! I had been given a few Coleman propane stoves that were in pretty bad shape and missing the regulators. I had cleaned them up in hopes of coming across the regulators. In the mean time I have a metal scrapper friend that usually comes across old BBQ grills. He said he cuts the hose and regulators off while sorting the metals. It sounds like, from this new found knowledge, I should be able to use the regulators from the BBQ grills on the stoves. I know they make replacement regulators, but this isn't something I want to put any money into at this time.