Re: 1990 E350 Conversion Project
re: propane pressure
The pressure in the tank at rest is an indicator of the ambient air temperature, not the amount of liquid left. The pressure might reach 200+ psi on a hot summer day, but is usually less.
We use 11 to 14 water-column inches to run a 70 kW generator. This is about 0.5 psi. Small generators less than 10 kW and probably most appliances use 7 water-column inches, or about 0.25 psi. In running two-stage regulators, I think it is common to have a 10 psi (277") "high pressure" regulator feeding the line to force an adequate flow to the step-down regulator(s) for the appliances.
Someone said "Making good decisions comes from experience, experience comes from bad decisions." I say there are three kinds of people: those who learn from their mistakes, those who learn from the mistakes of others, and those who never learn.