Let's start this essay by providing a succinct response to that query: yes, provided that your motorhome has a built-in generator, you can operate your vehicle while using the generator. But there are some dangers to be aware of, and there are other things to think about as you go.

Why run a generator while driving?

Several things can be powered by a generator while driving a motorhome, including the air conditioner, microwave, electric water heater, TV, and other 110-volt items. The ability to run the rooftop AC in addition to the dash AC, however, is one of the primary reasons to run the generator.

Energy from a generator or 110-volt shore power is used to run the motorhome's rooftop air conditioner. Your motorhome will heat up if you are travelling in the summer because it does not have as good of insulation as a house. Usually, your dash air conditioner may not be sufficient to adequately chill the rest of the motorhome; as a result, you will need to turn on your rooftop air conditioner.

Again, your motorhome's dash air conditioner won't be enough to cool every room, so you must use the rooftop air conditioner, especially if you are transporting people or animals. Additionally, there's a chance that movie-watching passengers will demand that the TV be powered by the generator. Running the generator while driving is also necessary to keep the fridge cold on extended trips and to operate the microwave.

What are the downsides to running a generator while driving?

The only disadvantage to running a generator while driving is that it will use more gas than usual, especially if your generator works on propane. There may be regulations that forbid the use or even the transportation of propane on certain roads, bridges, or tunnels.

Additionally, if the gas line is damaged, running pressurised fuel while driving greatly increases the risk of fire or explosion. However, because these lines run underneath your vehicle, any leaks will happen outside rather than inside, where you could be exposed to propane gas poisoning.

Will using a motorhome generator while driving, affect your fuel economy?

Using a generator while operating your motorhome won't, technically, reduce your miles per gallon.

Your generator uses around 3 to 5 litres of fuel per hour of operation, depending on the size of the generator and the load drawn by the devices that are turned on. Therefore, even if you use your generator while driving, you will still receive at least 15 km per litre if you obtain 20 km per litre without one.

For instance, if you drive your motorhome at 100 km/h with a 15 km/l fuel economy, you will need 25 litres of fuel. Therefore, if you ran your generator for one hour at 100 km/h, you would burn 3litres of fuel in addition to the 25 litres you would already have consumed. Therefore, using the rooftop AC to chill your vehicle and keep your passengers entertained with a movie makes little difference.

Before driving with the generator on, make sure to fill up the tank if the generator is fuel-powered. You wouldn't want to burn up all the fuel simply powering the generator, therefore the gasoline used to power the motorhome's motor is also utilised to power the generator.

However, the majority of motorhomes feature a fail-safe that turns the generator off automatically when the tank is just 25% full, ensuring you have enough gasoline to reach a service station. A circumstance where you're trapped in the middle of nowhere with no gas is also avoided thanks to the safety function.

Conclusion

You can use all of your necessary appliances while the generator is running in your motorhome with great safety. Although it might not be the most fuel-efficient way to operate your recreational vehicle, it enables you to take advantage of all its amenities and conveniences while travelling.

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