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08-06-2014, 05:05 PM
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#1
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Senior Member
Join Date: Apr 2011
Location: Southeast, NY
Posts: 1,113
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Vents open or closed on hot days
I read another post which got me thinking. I ALWAYS have my bath vent open. I have vent covers, so there's never a problem with weather. In this other post, it was mentioned how much heat was entering in through the vent, and it got me thinking.
Do you leave any vents open on a hot day, and does closing them have a significant impact on the cooling of your camper? I have a BHLT 5th with 2 13,500 A/C's so cooling isn't an issue in any weather, but I am wondering if I could get it even colder by closing the vent.
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Karl - Southeast, NY
2020 377 RLBH
2018 Ram 3500 Mega Limited 6.7L Cummins w/ Aisin
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08-06-2014, 06:15 PM
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#2
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Senior Member
Join Date: Aug 2011
Location: Missouri City, The Republic of Texas
Posts: 5,063
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We left the bath vent open all the time with our X23B, I figured it cut down on condensation. I was doing the same thing in the 351 until I was in the bathroom and wondering where all the water drops on the floor were coming from. Well, water falls DOWN so I looked UP. There was lots on condensation following the A/C ducting running above the bath ceiling and even more around the A/C vent in there. I was pondering this when it hit me how much warm (humid) air was pouring in thru the open vent. In hot weather it is now closed when the A/C is running. I think it helps the general cooling too.
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Cheers,
T_
2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks
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08-06-2014, 06:32 PM
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#3
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Senior Member
Join Date: Sep 2013
Location: Fort Worth
Posts: 355
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Vents open
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KELLY & LINDY ( SEMI RETIRED)
FORT WORTH,TEXAS
2000 FORD F-150 V-6/4.2
2006 JAYCO JAY FEATHER 23B EXP
EQUILIZER HITCH
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08-06-2014, 06:49 PM
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#4
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Senior Member
Join Date: Feb 2012
Location: Friendswood
Posts: 917
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Vent closed except when showering or you know!!! Lol
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08-06-2014, 06:57 PM
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#5
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Member
Join Date: Jul 2014
Location: Sioux Falls
Posts: 69
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We only open it when taking the kids to the pool or when showering. The one in the kitchen area may be turned on occasionally to let the rising hot air out.
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Todd & Dawn
Maddy and Nugget the Cats
2015 Jayco Pinnacle 31RETS
2014 Dodge Ram 2500, Diesel
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08-06-2014, 08:56 PM
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#6
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Senior Member
Join Date: Jan 2014
Location: Aurora CO
Posts: 2,334
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I put covers on my vents a few months ago and they have been open ever since.
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Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
Click on my profile for Mods and notes
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08-06-2014, 09:08 PM
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#7
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,773
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Now that we have a cover, typically they are always open.
This would be a good polling question. hint hint moderators.
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08-06-2014, 11:22 PM
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#8
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Senior Member
Join Date: Dec 2010
Location: North Idaho/Arizona
Posts: 5,446
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Our vents are closed when the AC is running.
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2011 Eagle 330RLTS with just about every option.
2017 Silverado 1500 4x4 5.3 with tow package. (no, we don't tow the Jayco with it.)
2018 Surveyor 265RLDS well equipped.
Life in the slow lane is still life.
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08-07-2014, 04:20 AM
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#9
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Senior Member
Join Date: Dec 2009
Location: Maplesville - Home Base
Posts: 3,059
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My vents are closed any time the a/c is on.
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Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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08-07-2014, 04:36 AM
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#10
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Senior Member
Join Date: Apr 2011
Location: Southeast, NY
Posts: 1,113
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Quote:
Originally Posted by RedHorse1
There was lots on condensation following the A/C ducting running above the bath ceiling and even more around the A/C vent in there. I was pondering this when it hit me how much warm (humid) air was pouring in thru the open vent. In hot weather it is now closed when the A/C is running. I think it helps the general cooling too.
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I'm getting the same thing and I used to keep the vents closed before the vent covers. After I put the vent covers on, I kept them open. I think that I am going to change my ways a bit!
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Karl - Southeast, NY
2020 377 RLBH
2018 Ram 3500 Mega Limited 6.7L Cummins w/ Aisin
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08-07-2014, 05:07 AM
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#11
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Senior Member
Join Date: Feb 2012
Location: Clifton Park,NY
Posts: 337
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Maybe I'm misreading or reading into this too much but if my AC is on I close the vents except in the bathroom while showering.If the trailer is parked at home or at a camp site without electric I just open them to allow air in.
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Chris
Chevrolet 2500 HD Crewcab
2013 Jay Flight 33 RLDS
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08-07-2014, 05:44 AM
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#12
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Senior Member
Join Date: Mar 2013
Location: CENTRAL NEW YORK
Posts: 984
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The one in the living room is open but we shove that square pillow thingy in it when we set up. Keeps the light glare off the TV. I always keep the bathroom one open but have noticed water on the ceiling near the vent so may try closing it in humid weather and see if it changes..
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2013 33 RLDS
2004 Chevy Avalanche 2500 8.1
2019 Jeep Cherokee Limited 3.2
2016 CTS 4 2.0T
2001 Oldsmobile Aurora 4.0
2015 Chrysler 200C AWD
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08-07-2014, 05:44 AM
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#13
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Senior Member
Join Date: Sep 2010
Location: New York
Posts: 2,210
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Quote:
Originally Posted by Adk Camper
Maybe I'm misreading or reading into this too much but if my AC is on I close the vents except in the bathroom while showering.If the trailer is parked at home or at a camp site without electric I just open them to allow air in.
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+1 and I have a insullation pillow for the BH vent which helps keep heat out. Vent open = humidity and heat in.
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2014 375 BHFS Eagle Premier
2014 Ram 3500 Longhorn DRW CC
6.7 CTD, Aisin, 4.10's
Yamaha EF3000iSEB
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08-07-2014, 06:39 AM
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#14
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Senior Member
Join Date: Feb 2012
Location: Clifton Park,NY
Posts: 337
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Quote:
Originally Posted by 33 RLDS
The one in the living room is open but we shove that square pillow thingy in it when we set up. Keeps the light glare off the TV. I always keep the bathroom one open but have noticed water on the ceiling near the vent so may try closing it in humid weather and see if it changes..
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I installed the smoked Max Air II vent covers which cuts the glare down to nothing and I haven't noticed any water around any of the vents or the ceiling. Just curious given we have the same unit.
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Chris
Chevrolet 2500 HD Crewcab
2013 Jay Flight 33 RLDS
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08-07-2014, 08:04 AM
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#15
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Senior Member
Join Date: May 2013
Location: Dale Hollow Lake Tn/Ky
Posts: 2,525
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Do the math. Hot humid weather = A/C running to keep heat and humidity out of the RV. Open vents while running the A/C is about like opening a window when you are running the furnace. Either way you are letting the cold or hot air in from outside which by any account is defeating the purpose of heating or cooling the interior. Showering or cooking, open a vent to eliminate heat / humidity but remember you have to open a vent or window elsewhere if you are running a fan to pull air to the outside.
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08-07-2014, 07:54 PM
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#16
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Senior Member
Join Date: Sep 2010
Location: PNW
Posts: 5,195
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vent open to varying degrees all the time, unless it's pouring rain or the AC is on. ]I like my fresh air.
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Bill
2011 Dodge Ram 1500 HEMI Quad Cab
2011 Jay Flight 26BH
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