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Author Topic: What gen do I need please?  (Read 865 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
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Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

Mark_K5LXP

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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

penman39

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Re: What gen do I need please?
« Reply #3 on: March 28, 2020, 08:39:36 PM »
This might meet your needs. I would go with an inverter generator

https://www.harborfreight.com/3500-Watt-Super-Quiet-Inverter-Generator-63584.html
Carl
2002 Adventurer 35U Workhorse
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2015 Subaru Crosstrek Toad

Gizmo100

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Re: What gen do I need please?
« Reply #4 on: March 28, 2020, 08:43:57 PM »
This might meet your needs. I would go with an inverter generator

https://www.harborfreight.com/3500-Watt-Super-Quiet-Inverter-Generator-63584.html

X's 2 on this one. I have had my for over a year and no problems. I run it once a month and it starts every time.
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WILDEBILL308

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Boat Addict

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Re: What gen do I need please?
« Reply #6 on: March 28, 2020, 08:59:02 PM »
This unit has a fuel shut off and produced a tad bit more than the Predator . Its priced about the same. I would also look at the Cummins Onan that will produce a bit more and pretty reliable too.

https://www.amazon.com/WEN-56380i-3800-Watt-Portable-Generator/dp/B07PTNTRRJ
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penman39

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Re: What gen do I need please?
« Reply #7 on: March 29, 2020, 08:51:25 PM »
I like the WEN unit and if you go with an open frame unit it's less than $450 dollars. Great Deal!!
Carl
2002 Adventurer 35U Workhorse
W22 GM 8.1L Ally 1000 Tranny
2015 Subaru Crosstrek Toad

skydivemark

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Re: What gen do I need please?
« Reply #8 on: April 14, 2020, 12:45:17 PM »
The problem with some portable generators is, even though it may be rated at 3500w most don't have all that power available at one outlet. My home portable 5200/6000 gen can only put out 16A at the big outlet. Not enough for summer use. It pops the c/b if anything more than the a/c is running, especially a hair dryer or coffeepot.
 last summer we bought a predator 8750. The big outlet is rated at 28A. I was skeptical buying it but after a few weeks of 24hr/day use I am impressed. I watched my volt & freq meters when the a/c kicks on and both never fluctuated more than 2 and only for a fraction of a second. In 24 hours (hot summer, 90+) it uses about 15-16 gallons/day and colder weather (In Dec) it used considerable less fuel (8-10 gallons/day, of course less if it doesn't run all day/night).
 I think I bought it on sale for $529.
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Lou Schneider

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Re: What gen do I need please?
« Reply #9 on: April 14, 2020, 02:45:02 PM »
The generators that can't deliver their full wattage through a single 120 volt outlet are those that produce dual voltage - 120/240 volts.  These are almost always open frame (loud) generators, not the quieter inverter models.  The 120/240 volt generators have dual windings and each produces half of the total wattage at 120 volts.

Some of these have a 120-240 volt switch that reconnects the windings so they can combine to deliver full power to a 120 volt outlet, at the expense of providing 240 volts.