The manual says it requires a regulator that will provide at least 67 cubic feet per hour.
I have a couple of different manuals - installation, troubleshooting, etc.
The installation manual, which lists the 67 cu feet number, is for the NP-50, the next size up generator.
So, I don't think Dr. Jerryriggers numbers are far off.
Yep, 11 in of wc is a common pressure of regulators - it's just a matter of finding one with the right flow.
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