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05-14-2016, 04:51 PM
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#1
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Senior Member
Newmar Owners Club
Join Date: Oct 2011
Location: On the road.
Posts: 1,432
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Questions on AC for a 43'
How well would two 15M Penguins cool a 43'? We're not talk super cool. We keep our current rig at 72* and we're fine. Just curious.
Thanks
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John & Diann
2014 Dutch Star 4364
2016 Ford Edge Sport
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05-14-2016, 05:00 PM
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#2
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Senior Member
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 9,750
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Start one or both early in the day, block your windshield if needed, you will probably be fine to about mid 90's outside.
I have three, in the same size coach, and the only time I've needed to run all three together is when I've allowed the coach to get hot inside.
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Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
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05-14-2016, 05:41 PM
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#3
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Senior Member
Newmar Owners Club Freightliner Owners Club Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,973
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It does depend on both how hot and how sunny it gets. Our 2 15K Penguins are adequate up to the middle 90s without shade if I use my Magne Shades. It also helps if you can deploy the awning into a westerly direction on hot, sunny days. At the same time we use all available means to help ourselves with insulation blocks in the fan openings and keeping other window shades down.
Of course, it would be nice to have a third unit for extreme conditions or as a backup if one fails. Been there, suffered that.
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Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V 2020 Jeep Overland, Blue Ox Avail, SMI AF1.
[SIGPIC][/SIGPIC]
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05-14-2016, 05:43 PM
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#4
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Senior Member
Newmar Owners Club Freightliner Owners Club Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,973
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BTW...It helps to have a well insulated coach like a Newmar.
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Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V 2020 Jeep Overland, Blue Ox Avail, SMI AF1.
[SIGPIC][/SIGPIC]
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05-14-2016, 05:50 PM
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#5
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Senior Member
Thor Owners Club
Join Date: Jul 2015
Posts: 207
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Here in Phoenix we can only keep our 40' cooled to about 80 with 2 15k units, that is when it's well above 100f outside. If we allow the interior to heat up it takes a long time to bring the temp down, even longer if all 3 slides are open.
When travelling on the highway we sometimes close the bedroom door and only run the front unit, the dash ac blows very cold but is nearly worthless with the setting sun beating down on the huge windshield.
Call me cheap but I don't like to run the genny the whole time we are driving. It's what it is for I suppose.
I have heard that the Newmars are insulated very well.
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05-14-2016, 05:52 PM
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#6
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Senior Member
Newmar Owners Club
Join Date: Oct 2011
Location: On the road.
Posts: 1,432
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Thanks Ben and Don.
Never thought about using our insulated blocks for the vent fans. Good idea. 3 AC's and a 10K generator would be nice if and when needed.
Hi Don and Sandee. Long time no see!
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John & Diann
2014 Dutch Star 4364
2016 Ford Edge Sport
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05-14-2016, 06:19 PM
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#7
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Senior Member
Holiday Rambler Owners Club
Join Date: Aug 2010
Posts: 9,750
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I have a inside mounted windshield cover that came with my current coach. Last one had a outside cover. Outside mounted cover, MUCH better at keeping the heat out.
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Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ
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05-14-2016, 07:04 PM
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#8
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Senior Member
Newmar Owners Club
Join Date: Oct 2011
Location: On the road.
Posts: 1,432
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We purchased Magna Shades last summer. Worked great this winter.
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John & Diann
2014 Dutch Star 4364
2016 Ford Edge Sport
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05-15-2016, 06:48 AM
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#9
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Senior Member
Join Date: Jun 2005
Location: Indiana
Posts: 1,194
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The first thing we did when we got our 2008 DS 4320 was take it to Newmar and have the third ac installed like it should have been ordered with.
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2018 Phaeton 40IH
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05-15-2016, 07:13 AM
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#10
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Senior Member
Newmar Owners Club Freightliner Owners Club Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,973
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Quote:
Originally Posted by DAJO
The first thing we did when we got our 2008 DS 4320 was take it to Newmar and have the third ac installed like it should have been ordered with.
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Our 06 with a 7.5 KW Onan didn't list that an option. In 07 they added a 3rd AC as an option with either the 8.0 Power Tech or 7.5 Onan. In 08 the 3rd AC was optional with either they 8.0 Onan or 10 KW Power Tech bit it doesn't appear the 10 KW Power Tech was a mandatory upgrade for the 3 ACs.
What generator do you have and did you have any issues with how it was installed along with power management if you were running all 3 on 50A power? Was your EMS upgraded/reconfigured to shed up to 2 ACs if needed? I'm interested in doing the same. PM me if you feel that is best and if you have a general idea of the cost that would be great.
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Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V 2020 Jeep Overland, Blue Ox Avail, SMI AF1.
[SIGPIC][/SIGPIC]
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05-15-2016, 02:22 PM
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#11
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Senior Member
Newmar Owners Club
Join Date: Dec 2014
Posts: 291
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I always believe in the more options the better, so I'd go with 3 A/C's just in case 1 fails. I know from experience about A/C's failing and am very glad to have 3 to choose from when it gets hot and 1 dies!
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2007 Newmar Essex 4510, Spartan K2, 500HP ISM, Allison 4000
Silverleaf Dash & House, 1720w Solar, Victron 5kw Quattro, 1200ah Lithium
2016 Jeep Hard Rock Rubicon Wrangler Unlimited
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05-15-2016, 04:14 PM
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#12
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Senior Member
Newmar Owners Club
Join Date: Jun 2012
Location: Spicewood Texas (West of Austin)
Posts: 4,514
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I camp at a couple race venues each year where temperatures are likely to exceed 100. In our previous 5th wheel, 2 AC's could not keep it lower than 84 degrees during the day. Last year was the first with our MADP. It was able to stay cool (78) with only 2 AC's but using all 3 allows them to not work as hard. Another observation was that the 10K diesel generator uses about the same amount of fuel while running all 3 AC's as the 5500 gas generator did running only 2.
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Scotty and Kristen, Airedales Dagny and Wyatt
2007 Newmar Mountain Aire 4528, 450 HP ISM, Allison 4000, 8 Lifeline AGM's
2019 F250 King Ranch 4x4 Powerstroke - SOLD
2022 F350 DRW King Ranch 4 x 4
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05-15-2016, 04:31 PM
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#13
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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We had two 13.5 heat pumps in our '02 Dutch Star, in Yuma in 90+° weather all slides out we did just fine with one running. We did have slide toppers, dual pane windows and the (at that time) optional roof insulation package though.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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05-15-2016, 05:51 PM
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#14
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Senior Member
Newmar Owners Club
Join Date: Oct 2011
Location: On the road.
Posts: 1,432
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Thanks everyone.
We feel a bit better. This is the only issue otherwise this coach has everything we would have ordered if we did.
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John & Diann
2014 Dutch Star 4364
2016 Ford Edge Sport
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