Recently installed a new propane tank and regulator - three years ago, actually.
I finally made a manometer of plastic tubing to check the regulator outlet pressure. It seemed the propane flame on the ranage was a little wimpy. Regulators have a plastic cap that removes to expose a calibration screw. Right turn (clockwise) to increase pressure - with a screw driver.
I found our pressure to be low and increased it.
There's lots of info about this online.