Thread Tools Display Modes
Old 05-24-2016, 09:27 PM   #1
Junior Member
Join Date: May 2016
Posts: 25
Generator Question

New to forum and to serious RV'ing. Have been using a simple pop-up for years but ready to get serious with a new Roo 23WS. Want to be able to camp off the grid so looking for a generator/invertor. Unit has 13500BTU A/C. Want to be able to run A/C, and microwave, and TV with lights. Do you think two 2000 watt hooked in parallel is the way to go?

delaware dave is offline   Reply With Quote
Old 05-24-2016, 09:53 PM   #2
Senior Member
Join Date: Mar 2014
Location: Mountain Foothills of Southern Alberta
Posts: 514
I have two Champion 2000's parallel and they run my 15k AC with no problem. Will not start AC (high head pressure) if microwave is running.


2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - 6 speed - Tow Package
boondocking is offline   Reply With Quote
Old 05-24-2016, 09:59 PM   #3
Senior Member
Join Date: Oct 2015
Posts: 732
If you run all at same time, there is a possibility you may have trouble and here is why:

2000 watt generators such as the Champion are rated for 1700 watts continuous and 2 will give you 3400 watts. For every 1000 feet in altitude over sea level expect to lose 3% in power generation capacity. Expect to lose more than 3% if you don't reject for high altitude.

RV A/C uses anywhere from 1500 to 2000 watts continuous with 3000 watts needed for starting

Microwave: Plan on 1200 watts for it.

Converter: I'm assuming you have at least a 40 amp converter. If batteries are low expect at least a 20 amp charge on them which is about 275 watts out and 300 watts if not more due to inefficiencies in power conversion.

Hot water heater cycling on electricity: 1200-1500 watts

Fridge on A/C 300 watts or so for the heating element on fridge-Yes, fridge cools on heat...weird.

TV: 30 to 100 watts

Lighting: Get LED lights. Incandescents burn hot and use a lot of electricity.

If you are judicious in your use of power you should be ok. We don't run microwave when running a/c. We run fridge on propane instead of ac generator power. We run hot water heater on propane instead of a/c.
Skyliner is offline   Reply With Quote
Old 05-24-2016, 10:16 PM   #4
Senior Member
Bluepill's Avatar
Join Date: Jun 2015
Location: Pensacola, FL
Posts: 529
Any RV with 30 amp (3600 watts) shore power requires power management. It will just not support all the various electrical loads at one time. The same applies to 4000 watts of genny power.

Get to know what you can run together and a pair of 2000 watt units in parallel will be fine.

I get by well with a single 3000 watt Honda inverter genny because my A/C is only 10,000 BTU.
2015 T12RBST Flagstaff Hardside
2008 Itasca Meridian 37H
Bluepill is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:31 AM.