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08-24-2016, 11:03 PM
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#1
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Junior Member
Join Date: Jun 2016
Posts: 20
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5.5kw or 6.5kw genset ?
So I'm not sure if I should go with the 6.5 vers the 5.5 propane Onan. Will the 5.5 run 2 AC's at the same time? I'm not sure yet if they will be 13.5 or 1500 btu units. I won't be running them a lot but when I want AC i will want both running.
So what are your thoughts on this?
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08-24-2016, 11:26 PM
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#2
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Senior Member
Join Date: Jan 2012
Posts: 2,811
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Just had my genny running to exersize it and change the oil. To put a load on it I had both ACs (15K each) running with no problems.
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Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top
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08-25-2016, 01:08 AM
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#3
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Senior Member
Join Date: Nov 2014
Posts: 2,032
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As far as I know the 5.5 will run most everything. When I did the calcs before we got ours with both airs running and add lights,TV, microwave, hair dryer it was borderline so I opted for the 6.5. Have had no issues running anything that we throw at it
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2015 36RL pushing a 2015 Denali
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08-25-2016, 03:47 AM
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#4
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Senior Member
Join Date: Jul 2015
Posts: 2,313
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I too opted for the 6.5. . . Don't ask me why , because I don't really know the answer other than .. Because I wanted to, 
__________________
2020 F-350
2020 3991RD with-
17.5 Goodyear 114's , Titan Disc brakes, MorRyde 8K IS, Onan 6.5..
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08-25-2016, 04:10 AM
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#5
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Senior Member
Join Date: Jan 2016
Posts: 325
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I did all the calculations with Onan Elkhart. And we determined the only way to go is the 6.5. It is the same foot print and it weighs (if i remember) 5 lbs more. another thing when using the gen at a reduced load the 6.5 consumes less than the 5.5 as it is working easier. If you decide to do it at Elkhart email me and i will give you the contact info i have. Also they were the best price around. and while they work on your coach you can stay at their sites in the back
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Meet Teddy  Bear
Make Every Day Count
2016 Denali 3500 Diesel SRW
2015 38 GK
Cheryl & Wayne
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08-25-2016, 04:40 AM
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#6
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Senior Member
Join Date: Nov 2014
Posts: 1,033
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I would also go to the 6.5. We don't have a gen set in our RW since I did not want the added weight and loose the storage. We just almost never need it in our travels. Our previous 38' Motor Home had the 6.5 and it would run everything without an issue and I don't think a 5.5 would have done the job. We owned it for about 8 years and never failed us and ran flawlessly.
Steve
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Retired 2014 Redwood 36FL and 2015 GMC Denali 3500 DW Duramax but Now a 2020 Tiffin Allegro Bus with a 2022 GMC Canyon Denali toad.
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08-25-2016, 04:06 PM
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#7
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Senior Member
Join Date: Oct 2015
Posts: 500
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When we chose the Genset option, the 5.5 was the only option.
it runs everything just fine and I am pleased at how quiet it is. I am sure that if there was a 6.5 option I would have ordered it just because it was more.....
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Larry, Stephanie Park City, Utah
2017 31SL King, 8K axles, Disc Brakes,17.5 Goodyear H tires,BU Camera,5.5 Onan, Heated HT pads, Two Uniguard Awnings, Slide Toppers, 2000w PSW inverter
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08-25-2016, 05:48 PM
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#8
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Senior Member
Join Date: Feb 2013
Posts: 7,101
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Our 5.5 LP ran everything on our Redwood including 2 ACs, however we originally bought the generator back when we had a 5er with 30A service. Doing it again, I would go to the 6.5 just because.
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Brad & Dory - Lone Tree, CO
CURRENT - 2013 Itasca Meridian 42E/2013 Wrangler 4dr Sahara
SOLD - 2014 Redwood 36RL/2014 F350 DRW
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08-27-2016, 10:56 PM
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#9
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Senior Member
Join Date: Oct 2012
Posts: 412
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Quote:
Originally Posted by Shane Wood
As far as I know the 5.5 will run most everything. When I did the calcs before we got ours with both airs running and add lights,TV, microwave, hair dryer it was borderline so I opted for the 6.5. Have had no issues running anything that we throw at it
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I op'ed for the 6.5 KW Onan Gold propane gen as doing the math from design experience the 6.5 KW propane Onan should only be loaded to a max of 80%. This assures that the 60HZ will be achievable for critical loads, such as the FP dishwasher when loads are cycling together such as the clothes dryer both A/C's. The FP dishwasher will fault at 58 or 62 HZ.
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Bob and Carol - Lees Summit, MO,
2016 Silverado 3500 HD, High Country DRW diesel, 3.73 gear ratio, long bed, 25K Reese Elite removable hitch with 2013 Redwood 36RL with 17.5" H-rated tires and MOR/ryde heavy duty shackle links and bushings; 6.5 KW gen
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