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08-05-2023, 03:43 PM
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#1
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 569
M.O.C. #21685
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Beating the heat.
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08-05-2023, 05:38 PM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,582
M.O.C. #30417
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Whatever works. I'd look at a 3rd Ac and I found a solar window shade that looks interesting.. I'll try to find and add to post
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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08-05-2023, 08:59 PM
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#3
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 569
M.O.C. #21685
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08-06-2023, 11:39 AM
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#4
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Established Member
Join Date: May 2021
Location: Livingston
Posts: 47
M.O.C. #28708
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Make sure to cover your heater intakes and outlets. It helps.
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08-06-2023, 06:14 PM
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#5
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Montana Master
Join Date: May 2006
Location:
Posts: 1,733
M.O.C. #5751
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The Feds like to say that 78 is an ideal temp between being comfortable and being energy conscious. If I was in your shoes, at 70 I'd be looking for a sweatshirt!
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08-07-2023, 08:16 AM
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#6
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,582
M.O.C. #30417
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__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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08-07-2023, 08:30 AM
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#7
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Montana Fan
Join Date: Feb 2022
Location: Erie
Posts: 104
M.O.C. #30432
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Bubble Foil; google it. Cheap, easy to cut with a scissors for perfect fit and works (reflective). Been using it on RVs for 15 yrs in TX, hot summers in CO (intense sun with no atmospheric filters) and when traveling just remove as needed and stow behind coach or recliners.
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08-07-2023, 12:42 PM
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#8
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Montana Master
Join Date: Oct 2018
Location: Anderson
Posts: 2,787
M.O.C. #22835
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We're still in North Carolina near Mount Airy. The temps here are in the high 80's ... low 90's on side of this mountain! The air conditioners (2 of them) are set on 69 and under these trees we are doing fine ..... except .....
The ceiling is dripping from condensation! like .... rain falling from the ceiling.
So, every couple of hours I have to turn both AC's off, wipe the water from the middle of the ceiling, following the air ducts in the ceiling, and wait for the ceiling to dry good again. Then start all over. It's kind of weird, we've never had condensation on the ceiling before, even at the air ducts. It reminds of the sweating the camper does on the outside when we can see the outline of the wall studs.
BUT ... we're staying nice and cool inside ..... that is, until I go outside and start cleaning fire pits again! Then I really feel the heat!
But gosh dang it's beautiful here!
__________________
History is not about the past, it's an explanation of the present.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually
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08-07-2023, 02:47 PM
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#9
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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I had a similar issue once with the sweating ceiling. Luckily it wasn't very far from a ceiling diffuser. Popped the diffuser out and could look in and see the duct had separated or at least was letting hot attic air into the cold duct. Appeared the tape on the outside of the duct had come off. Was able to contort my arm enough to get in there with some Aluminum tape and seal it back up. Solved the problem.
Perhaps a snake scope like member Daryles often recommends will allow you to see further into the duct.
__________________
2006 3000RK
2009 Ram 2500
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08-13-2023, 03:00 PM
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#10
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Established Member
Join Date: Jun 2017
Location: Greenville
Posts: 46
M.O.C. #19958
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Completely agree
Quote:
Originally Posted by 182flyer
Bubble Foil; google it. Cheap, easy to cut with a scissors for perfect fit and works (reflective). Been using it on RVs for 15 yrs in TX, hot summers in CO (intense sun with no atmospheric filters) and when traveling just remove as needed and stow behind coach or recliners.
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Go buy a roll at Lowe’s and cut to fit. If you cut it right, it will stand up in the window a reflect all the heat away.
Been using it in Texas on three different campers.
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08-13-2023, 04:57 PM
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#11
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Montana Fan
Join Date: Mar 2020
Location: Frostbite Falls
Posts: 446
M.O.C. #26015
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Quote:
Originally Posted by Cat320
The Feds like to say that 78 is an ideal temp between being comfortable and being energy conscious. If I was in your shoes, at 70 I'd be looking for a sweatshirt!
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Noway I'm keeping my home at 78, 68 - 70 sounds much more real, after all 68-70 is room temp.
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08-13-2023, 07:01 PM
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#12
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Seasoned Camper
Join Date: Jan 2022
Location: Bunnell
Posts: 95
M.O.C. #30397
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Give this a try plenty of the guys on youtube claim 40% more air flow from the ducts Times that by two units. https://rvairflow.com/
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08-14-2023, 09:36 AM
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#13
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Montana Fan
Join Date: Feb 2022
Location: Cynthiana
Posts: 300
M.O.C. #30449
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Quote:
Originally Posted by DutchmenSport
We're still in North Carolina near Mount Airy. The temps here are in the high 80's ... low 90's on side of this mountain! The air conditioners (2 of them) are set on 69 and under these trees we are doing fine ..... except .....
The ceiling is dripping from condensation! like .... rain falling from the ceiling.
So, every couple of hours I have to turn both AC's off, wipe the water from the middle of the ceiling, following the air ducts in the ceiling, and wait for the ceiling to dry good again. Then start all over. It's kind of weird, we've never had condensation on the ceiling before, even at the air ducts. It reminds of the sweating the camper does on the outside when we can see the outline of the wall studs.
BUT ... we're staying nice and cool inside ..... that is, until I go outside and start cleaning fire pits again! Then I really feel the heat!
But gosh dang it's beautiful here!
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Have you checked the humidity inside your RV? It sounds like it might be quite high.
Do you keep your AC blowers running in manual or leave in auto? There are differing opinions on this subject, but I leave mine running in manual constantly. When the compressor cycles off there is a quantity of water on the evaporator coil that has to either be evaporated back into the air or drip off into the drain. The air going through the ducts will get quite humid for a few minutes. The longer it runs, the better it will mix the humidity back into the indoor air, there's probably not enough to raise the overall humidity more than a couple of % points. Leaving the blowers running will also add constant filtration and help prevent hot/cold spots inside the RV.
I don't know if the OEM thermostats offer this option, but the MicroAire does. If you can adjust the span from 1 degree to 2 degrees, it will dehumidify better. An AC removes humidity, but only while it's running. This should give you longer cycle times and longer times between cycles. Most people probably won't notice the additional 1degree rise before cycling the AC.
I don't know which brand ACs you have, but I've found the Dometic's to be very efficient in removing humidity. That's the only brand I have experience with. There's always the option of buying a small dehumidifier.
I just got a new psychrometer (gadget junkie) that will measure enthalpy. I'm going to do some measurements on mine this week and will post the results. This is the only way to accurately measure total heat and humidity removal. You can also calculate the actual capacity of the unit with these values.
I refer to humidity as "The wicked witch of the south"
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08-15-2023, 02:00 PM
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#14
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Montana Fan
Join Date: Mar 2009
Location: Sun Lakes, AZ 85248
Posts: 181
M.O.C. #9174
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Thanks!
Quote:
Originally Posted by LJSantore
Give this a try plenty of the guys on youtube claim 40% more air flow from the ducts Times that by two units. https://rvairflow.com/
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I’m not able to get to any of the Montana rallies so seeing this type of information online is very helpful. Thank you for putting it out there.
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08-15-2023, 02:54 PM
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#15
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Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 4,085
M.O.C. #20477
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The real secret is camping in cool areas. That is why our rigs have wheels.
__________________
Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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09-07-2023, 02:15 PM
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#16
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 3,038
M.O.C. #5651
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__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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09-07-2023, 05:29 PM
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#17
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Montana Fan
Join Date: Mar 2020
Location: Frostbite Falls
Posts: 446
M.O.C. #26015
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09-07-2023, 07:25 PM
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#18
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 3,038
M.O.C. #5651
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I have never heard of 'Frostbite Falls' before - and I grew up in Iowa (for 39 years LOL).
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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09-07-2023, 07:37 PM
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#19
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Montana Fan
Join Date: Mar 2020
Location: Frostbite Falls
Posts: 446
M.O.C. #26015
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How about the Icebox of the Nation?
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