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Old 08-03-2020, 12:47 PM   #7
Chuck v
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Join Date: Dec 2009
Posts: 1,026
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I had a diesel generator in my Tour Master coach, but I have had several propane generators at other off-grid properties and for standby use at several homes. The advantage of propane generators is the freedom of priming and choke hassles often associated with gas generators that get only occasional use, particularly in winter. One of my stationary generators in an off-grid use was designed to run continuously if needed, and was an 1800 RPM machine that was long-life and low wear...but as noted these do use a lot of fuel compared to a diesel of similarly speed, and perhaps more than a contemporary gasoline fueled generator also.



A further benefit of propane as a fuel for standby generators is the 'shelf life' issue. Propane can be stored long term, whereas gasoline goes stale over a short number of weeks if special additives are not employed. When gasoline evaporates from the carburetor it leaves a varnish-like deposits which adds to maintenance tasks for sure.


If I were to be acquiring a generator for dedicated use in a towable RV, I would look at a name brand gas powered INVERTER style unit, as these run at variable speeds which are matched to the electrical load -- this gives very good fuel efficiencies. Just be sure to perform all the maintenance and storage protocols in their manuals to ensure hassle free operation.



Chuck
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