How many hours will a 7000 watt generator run....

pianotuna wrote:
X2. I won't even run mine when sleeping.

If you ever have to run a generator built into, or near, your RV into the night there's a simple way to do it very safely.

Close up the motorhome tight - everything ... except for one thing. Leave one roof vent open (with a Maxxair over it in case it rains) that has a reversible 12 volt fan built into it. Run the fan on just a low speed, set to the AIR IN direction, the full time that the generator is running.

This creates and maintains a small but absolutely effective small air pressure inside the RV. This small bit of air pressure will push outward through any small crack or opening anywhere in the RV's floors and walls down low and up high. No generator fumes can enter anywhere while this positive air pressure is being maintained in the interior by the roof vent fan.

Of course you have to get over any concerns that generator fumes are going to be strong enough to be sucked in way up high where the roof vent fan is. This fan will be drawing only a very, very small amount of clean up-high air into the RV's interior to compensate for any air pushed out the RV's small cracks and out through the cooktop's hood vent. Any air pushed out any small openings down low in the RV will absolutely prevent any generator fumes from entering down low where generators are.

We use this technique all the time when running the built-in Onan - even into the night if necessary for air conditioning in hot/humid conditions. Our little portable generator has so far not required use of this air pressure technique.

By the way, we also use this technique to keep dust out of the RV when traveling offroad in the desert.