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06-23-2018, 04:05 PM
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#1
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Senior Member
Join Date: Sep 2008
Posts: 401
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Mini swamp coolers
Has anyone tried the small swamp coolers while boondocking. Cost about $30, and use little to no power.
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Chuck
Just West Of The Pecos
05 Dolphin #5342
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06-23-2018, 07:46 PM
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#2
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Senior Member
Join Date: Feb 2018
Posts: 1,283
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I have used a person evaporative cooler that runs on 12 volts. It has a reservoir that holds about a half gallon and a pad that soaks up the water. I would take an afternoon nap using the cooler while running a fantastic fan to exhaust the more humid air. I stay up much of the night when at astronomy events to the nap is helpful. My previous trailer did not have air conditioning since it was just a 5x8 cargo trailer with side windows door and fantastic fan added. It had 240 watts of solar so there wasn't any problem running fans.
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Jeff--
Arctic Fox 22G w/1440 watts solar/GMC2500HD Double Cab with Leer Cap w/740 watts solar
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06-23-2018, 07:59 PM
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#3
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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A swamp cooler works best in arid climates. They are popular in Colorado, Utah, Arizona, etc. They have a mat that is wetted by a small pump from a reservoir and a fan blowing across the mat. They do a nice job of blowing cool, moist air and cooling down whatever area they are rated for.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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06-24-2018, 10:00 AM
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#4
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Senior Member
Join Date: Feb 2018
Posts: 1,283
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I notice one company sells a rv roof top evaporative cooler.
turbokool.net
The power consumption is 2.2 to 4.6 amps. I wonder what the water consumption per hour is.
I live in Reno Nevada which has very dry air. The dew point right now is 37 degrees. I replaced my furnace and very old air condition with a new furnace and high efficiency air conditioner two years ago. I have only run the air conditioner for two days last year when forest fire smoke made the air quality too poor to run our house evaporative cooler.
The power consumption of the swamp cooler is so low I don't even notice the change on my electrical bill between April - May and June - August.
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Jeff--
Arctic Fox 22G w/1440 watts solar/GMC2500HD Double Cab with Leer Cap w/740 watts solar
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07-10-2018, 09:29 AM
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#5
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Senior Member
Join Date: Jun 2012
Location: Sk
Posts: 201
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I have a stand alone unit intended for 100 square feet. It draws 32 watts when running on the maximum setting.
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Regards, Don
My ride is a 2005 Kustom Koach Class C 28'5" E-450, 256 watts Unisolar, 556 amp hours in two battery banks 12 volt batteries, Magnum 3000 watt PSW inverter.
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07-11-2018, 09:42 AM
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#6
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Senior Member
Join Date: May 2017
Location: Itinerant
Posts: 755
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Quote:
Originally Posted by Pianotuna
I have a stand alone unit intended for 100 square feet. It draws 32 watts when running on the maximum setting.
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Do you mean the stand alone kind wally world or similar box store sells? Which one do you have? I was looking at them in wally world and wonder how good it would work while boondocking using off solar/ batteries in stead of the roof mounted one.
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07-11-2018, 11:36 AM
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#7
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Senior Member
Join Date: Sep 2008
Posts: 401
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There is a Honywell unit on Amazon tat says it is 175 CFM and uses 70 watts. $169. I am tempted to try this one.
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Chuck
Just West Of The Pecos
05 Dolphin #5342
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07-12-2018, 11:15 AM
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#8
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Senior Member
Join Date: Jun 2012
Location: Sk
Posts: 201
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Hi,
Yes it is a stand alone box--from Amazon. It did lower the temperature slightly when RH was 33% in the RV. Here is a link to the thread on rv.net
https://forums.goodsamclub.com/index...d/29674450.cfm
Quote:
Originally Posted by Itinerant1
Do you mean the stand alone kind wally world or similar box store sells? Which one do you have? I was looking at them in wally world and wonder how good it would work while boondocking using off solar/ batteries in stead of the roof mounted one.
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__________________
Regards, Don
My ride is a 2005 Kustom Koach Class C 28'5" E-450, 256 watts Unisolar, 556 amp hours in two battery banks 12 volt batteries, Magnum 3000 watt PSW inverter.
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07-12-2018, 11:33 AM
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#9
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by Pianotuna
I have a stand alone unit intended for 100 square feet. It draws 32 watts when running on the maximum setting.
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Quote:
Originally Posted by Chuck Q
There is a Honywell unit on Amazon tat says it is 175 CFM and uses 70 watts. $169. I am tempted to try this one.
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Wow, talking about two very different units, I bet!
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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07-18-2018, 05:25 PM
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#10
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 6,558
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I saw this one on Amazon but it's priced a little high!
$882 + $51 shipping
https://www.amazon.com/Trailer-Turbo...v+swamp+cooler
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97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
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07-18-2018, 05:59 PM
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#11
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,868
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There are lots of DIY swamp cooler instructions online. This one is made for an RV
https://rv-roadtrips.thefuntimesguid...ve-cooler/?amp
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Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
[SIGPIC][/SIGPIC]
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07-18-2018, 06:22 PM
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#12
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
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Quote:
Originally Posted by okmunky
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While the swamp cooler instructions are O.K., the explanation of air conditioning was bogus! " Air conditioning works on the principle of compressing and squeezing the moisture out of the air.
"
Air conditioners work by compressing a refrigerant and changing it to a liquid. The liquid is then forced through a small aperture and changes it back to a gas. It's the physical change of state, from liquid to gas, that creates the cooling function. In physics, it takes energy to go from liquid to gas. The energy (heat) is taken out of the air in the evaporator. Since the evaporator is cold, moisture in the air collects on the evaporator and it reduces humidity in the air. The now hot gas is compressed in the compressor and changes back to a liquid, releasing the refrigerant's heat in the condenser and it is released in the outside air.
Swamp coolers work also by a phase change, water is evaporated and the change from liquid to gas requires heat energy. This cooler air, now full of moisture, reduces the inside temperature of the space. In an arid climate, this moisture is often welcome to make people more comfortable.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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07-26-2018, 03:03 PM
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#13
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Senior Member
Join Date: Jul 2016
Posts: 577
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While attending one of my grand daughter's swimming events near Sacramento, CA, the need to do "something" really stuck.
The home team was setup under a tree line and it was quite cool there.
We were under shade tents, but on the tennis courts and it was nearly unbearable.
I did some research and testing - many trees will evaporate 100 - 200 gallons of water per day, which is one of the reasons it is cooler under there. As you can imagine, most of this is during the daytime.
I ran a test on my driveway and in fact it does take about 1 quart / minute to keep a 100 - 150 ft2 area relatively cooler using evaporation. Essentially 10 gallons / 1 hr.
In case it is interesting, it was 85F and relatively low humidity (not measured).
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Pleasanton, CA
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07-26-2018, 07:55 PM
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#14
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,868
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Same principle, different use -
I'm going to make a bucket cooler/humidifier to keep the air more comfortable for us when we boondock in southern AZ next winter. I'll use this idea but with a 2 gallon bucket instead of the taller 5 gallon bucket. It has to hang from the ceiling to keep little monkey hands from disassembling it.
https://coolcreativity.com/handcraft...-swamp-cooler/
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
[SIGPIC][/SIGPIC]
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