Forum Discussion
pnichols
Jan 29, 2014Explorer II
With regards to running a built-in Onan RV generator for long time periods ... so far we've only run ours for about a 6 hour stretch in order to sleep in high-humidity heat. Whenever doing long run times like this we maintain air pressure inside the RV to ensure that no fumes can enter anywhere near the bottom 98% of the motorhome's structure.
We maintain air pressure in the RV's entire interior by closing EVERY opening except one. We then keep only the roof vent with the reversible variable speed fan in it open. We turn the fan to "air in" and turn it on it's lowest speed setting. Using just a very little air from way up high on the roof, the fan then pushes against the motorhome's interior air volume to maintain some pressure everywhere inside. This prevents any generator fumes from entering anywhere below the roof line.
P.S. We also use the same technique above to keep all dust out of the interior when traveling on unpaved dusty dirt/gravel roads in our Class C.
Everything I've read says Onan RV generators are engineered and built to run continuously in "any" outside ambient temperatures. Most of the noise from the Onan in our Class C is in fact due to the rushing air sound from it's tremendous cooling air flow. We have no fears in running our Onan as much as necessary to provide full 120 AC power if needed for long time periods. We camp some in the desert and use the Onan as necessary to provide great comfort during high outside temperatures.
For what the Onan generators cost, they HAD BETTER be pretty much indestructible if you maintain them. ;)
We maintain air pressure in the RV's entire interior by closing EVERY opening except one. We then keep only the roof vent with the reversible variable speed fan in it open. We turn the fan to "air in" and turn it on it's lowest speed setting. Using just a very little air from way up high on the roof, the fan then pushes against the motorhome's interior air volume to maintain some pressure everywhere inside. This prevents any generator fumes from entering anywhere below the roof line.
P.S. We also use the same technique above to keep all dust out of the interior when traveling on unpaved dusty dirt/gravel roads in our Class C.
Everything I've read says Onan RV generators are engineered and built to run continuously in "any" outside ambient temperatures. Most of the noise from the Onan in our Class C is in fact due to the rushing air sound from it's tremendous cooling air flow. We have no fears in running our Onan as much as necessary to provide full 120 AC power if needed for long time periods. We camp some in the desert and use the Onan as necessary to provide great comfort during high outside temperatures.
For what the Onan generators cost, they HAD BETTER be pretty much indestructible if you maintain them. ;)
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