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Author Topic: What gen do I need please?  (Read 202 times)

What gen do I need please?
« on: March 23, 2020, 12:00:17 AM »
I am needing to get a gen to run continuously for long periods of time for my 2007 heartland fifth wheel, can someone tell me what kind or size of one I will need I will be running a/c unit thru summer and fridge and some lights. Please help!

Gary RV_Wizard

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Re: What gen do I need please?
« Reply #1 on: March 23, 2020, 08:51:16 AM »
They are all pretty much designed for continuous operation. Some are better quality than others, e.g. the Hondas and Yamahas, so may last longer in frequent use (but that isn't a proven fact).  Get an inverter-type generator - they can throttle back when loads are light, reducing wear and more quiet.

To reliably run a single a/c you need around 3000 watts. You may get by with 2500-2800.

I've written a short article on selecting an RV generator that you may find helpful. It's available at https://www.vehq.com/types-rv-generators/
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL


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  • 2005 Itasca Sunova
Re: What gen do I need please?
« Reply #2 on: March 23, 2020, 02:22:31 PM »
Look for the continuous duty wattage.  Sometimes termed "running" vs "surge".  The Honda 2000 is only 1600 continuous.  Don't forget to derate for operation at altitude, ~3% per 1000ft.  I added an inexpensive hour meter to my genset so i didn't have to guess when to change oil.  This could be every other week if you run it all day every day.

Mark B,
Albuquerque, NM