I have an Onan 6500 LP, and when running two AC's it can get thirsty !
Here are my ROUGH numbers, based on running off two of the 40# tanks:
no load - 32 Hrs . . . 1/2 load - 20 Hrs. . . full load - 13 Hrs
We dry camp at the NASCAR races, this Arpil in Richmond it was 96 degrees most of the days, from Noon Friday to 6 AM Monday I used 5 of the 40# bottles. The Genny ran the entire time with 2 AC's on o good part of that time..
To me, the ease of the Onan outweighs the burden of extra LP.. We only do it a few times a year, so it is a treat...
Me-Her-the kids
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