propane pressure

[Bob & Carol Howald`]

Wow, it's been hot here in the midwest, Electricity at our house was
off for 26 hours. We put a lot of our food in the coach refer and also
ran the gen set to power other's.
It seems that the refer's been running a lot cooler on electric
than gas. I took the burner out and cleaned it, also soaked the jet and
blew it out but it seem's to be the same. I made a manometer and
checked the water column pressure and could only get 10 inch's on it.
The book calls for 11 inch's. My question is , will the 1 inch
difference be enough to change the flame ( effect the btu rating)
enough not to get max cooling?
Thanks.....Bob 93pt Illinois....Getting back to normal after all
the storms!!!