Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 06-26-2013, 05:32 AM   #1
Senior Member
trode's Avatar
National RV Owners Club
Ford Super Duty Owner
Carolina Campers
Join Date: Jul 2012
Location: Wilmington, NC
Posts: 821
Traveling with generator on

May seem a silly question, but how many of you travel with the generator on? I have had my Seabreeze 1341 since Sept so haven't traveled in hot weather till now. Usually just me and wife so dash air has been adequate in 75-80 degree weather, now going on trip with other passengers and likely 85-90, don't think the dash air will handle this. I assume there is no issue running genny and at least on roof unit while traveling. Intend to close off rear bedroom, door and vents, and just run front unit. I have an Onan 5500 watt generator which PO said will run both if needed.

Does anyone know the fuel burn per hour on that size generator?

Appreciate the help.

Also, by having genny on I assume the fridge will go to ac power since it is "automatic", I guess I will save on LP gas while running genny?

While at it, when cold weather comes around let's consider the same question for the heater (gas). Thanks

Tom and Patty
The "Rode Crew"
2004 National RV, Seabreeze 1341, F-53 22K, Chevy Malibu toad.
trode is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-26-2013, 05:42 AM   #2
Senior Member
Roger G's Avatar
Join Date: Mar 2011
Location: Amory, Ms
Posts: 757
Live in the south so always have the Oman 5500 running with the roof ACs on during the warm months. From memory, your generator should use about 3/4 gallon per hour so that translates to about 75-80 miles per gallon. There was a discussion on here once that theorized that running the gen and roof air burned less gas than the dash air. Your gen needs running under load once a month, what better time than driving and cool air is the byproduct.

Roger And Kim Goodwin
bout them DAWGS!!
Roger G is offline   Reply With Quote
Old 06-26-2013, 05:46 AM   #3
Senior Member
Ernie Ekberg's Avatar
Join Date: Dec 2000
Location: Weatherford, Tx 76086 USA
Posts: 1,508
Send a message via AIM to Ernie Ekberg Send a message via Yahoo to Ernie Ekberg
we have a 4 cylinder Yanmar powering 12,500 watts of power running anything we want- 3 airs, etc- I don't like to sweat when I drive
Ernie Ekberg, Prevost Liberty XL Classic
Ernie Ekberg is offline   Reply With Quote
Old 06-26-2013, 05:49 AM   #4
Senior Member
Wolfpack Fan's Avatar
National RV Owners Club
Join Date: Dec 2010
Location: Reno, Nevada
Posts: 851
We've got a National also and have run down the road with generator on just to see if we could. Had no problem running ac's from generator when we were going down road. Your fuel burn rate will depend on the load. No load is about .35 gph, half load is about .60 gph, full load is aout .95 gph. That's from an Onan users guide, so it should be pretty close. For the cold you won't need to run the generator. The gas (propane) produces the heat. 12 volts runs the fan for the heater, which will come from the house batteries which should be getting charged as you're driving.
Harley Ultra Classic (Geezer Glide) Rider, Retired US Army Paratrooper, fisherman, shooter. Proud to have served, proud of those that still do, or have done so with pride.
2005 National Dolphin 34'
Wolfpack Fan is offline   Reply With Quote
Old 06-26-2013, 05:51 AM   #5
Senior Member
AttilaKara72's Avatar
Monaco Owners Club
Join Date: Mar 2013
Location: Massachusettes
Posts: 345
We run it going down the road for A/C.
We also use the heat running down the road in the colder months.
1999 Monaco Windsor with a 330 Cummins.
AttilaKara72 is offline   Reply With Quote
Old 06-26-2013, 06:22 AM   #6
Senior Member
gripper's Avatar
Fleetwood Owners Club
Join Date: Nov 2009
Location: Lutz, FL
Posts: 772
During the summer months, we always run the ginny, when traveling, because the DW can't stand to be hot and the dash air, can't keep up. Also, our residential refrigerator, is cold all the time and that's good. I don't care about mpg, I just fill up when my tank is about 1/2 full. For me, life is too short, to worry about how much it costs to drive the RV in comfort. Of course, the alternative is to park the RV and make a yard ornament out of it but that's not going to happen.
Roland & Jerri, with Maggie & Mollie, our Pups; '05 Fleetwood Providence, 39' DP; '08 Saturn. "The difference between genius and stupidity is genius has it's limits" (Einstein)
gripper is offline   Reply With Quote
Old 06-26-2013, 06:26 AM   #7
Senior Member
wa8yxm's Avatar
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 23,856
Depends on two things

Once a month I run the Generator 1/2 hour under load (At least 1/2 load) makes sense to do this when I do not have shore power.. Which means when I'm rolling, rolling, rolling down the highway (Yes you can sing that line... the original last word was river).

If it's August (or even June this year) I may fire it up to run the A/C to keep cool.
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 06-26-2013, 08:20 AM   #8
Senior Member
Playtime III's Avatar
Holiday Rambler Owners Club
Join Date: Oct 2012
Location: Tampa FL
Posts: 655
Run it! Just do not let your tank get too low before re-filling. Most have short fuel lines in the tank so the genny will not run you dry. Mine is around 1/4, however if the road is really rough the genny will quit just before the 1/4 mark.
2006 HR Scepter 42DSQ
Playtime IV
Holiday FL
Playtime III is offline   Reply With Quote
Old 06-26-2013, 10:04 AM   #9
Senior Member
txdutt's Avatar
Workhorse Chassis Owner
Join Date: Aug 2010
Location: Parker, CO
Posts: 185
Originally Posted by Playtime III View Post
Run it! Just do not let your tank get too low before re-filling. Most have short fuel lines in the tank so the genny will not run you dry. Mine is around 1/4, however if the road is really rough the genny will quit just before the 1/4 mark.
Same here, mine will cut out around a 1/3rd of a tank---found that out the hard way about 2 yrs ago. I'll start looking for gas around the 1/2 a tank now--I usually need a quick break from driving around then so it works out!!
2011 Ford F250 Lariat C/C 6.7 PSD-Curt 20k Lb Hitch
2013 Infinity 3860MS 5'er
2009 Jeep Wrangler Sahara/U.S. Navy 1978-1986
txdutt is offline   Reply With Quote
Old 06-26-2013, 10:21 AM   #10
Senior Member
Country Coach Owners Club
Join Date: Jan 2011
Posts: 1,000
I went to a roundtable discussion group with Cummins Onan folks there and they stated that running your AC units with the generator vs the engine AC gave you better fuel milage and probably cooled the coach more.
pumper9x9 is offline   Reply With Quote
Old 07-02-2013, 02:18 PM   #11
Senior Member
jnp_macklin's Avatar
Ford Super Duty Owner
Georgie Boy Owners Club
Join Date: Apr 2013
Location: Hamilton, Ohio
Posts: 116
We run the genset, for the AC, and to make sure the kids computers, laptops, and TV's will all operate as we travel. We're a tech-savvy family, so we always have something that requires 115VAC when we travel. The dash AC just cant keep up with the "greenhouse effect" in the front of the coach, so for us its always running for the roof air, when we're on the road.
The Macklin's - 1998 Georgie Boy 'Pursuit'
Pete: Pilot/Mechanic - Jen: Navigator/Travel Planner
Taylor & Patrick - Along for the ride....
jnp_macklin is offline   Reply With Quote
Old 07-02-2013, 03:54 PM   #12
Senior Member
ChallengerRN's Avatar
Join Date: Dec 2012
Posts: 2,080
Just finished a 4200 mile trip out West--we stayed in campgrounds each night with full hook-ups. We put 48 hours on our generator. Had it running most of the travel time to keep coach cool. Not good to sweat while on the road. Lol
ChallengerRN is offline   Reply With Quote
Old 07-02-2013, 04:03 PM   #13
Senior Member/RVM #90
MSHappyCampers's Avatar

Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 29,518
When we went out west last May & June we frequently ran the genny while traveling to run both A/C's and the fridge. I was told that the Onan 7500 uses about 1/2 gallon of diesel per hour. Certainly worth that to keep us cool!
Joe & Annette

2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 07-05-2013, 11:52 AM   #14
Join Date: Jul 2013
Posts: 38
I do and am actually thinking of putting a third roof air over the drivers seats.

Sugardog is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:08 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.