Condensation and all propane - Page 2 - Fiberglass RV


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Old 04-11-2015, 01:32 AM   #15
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Name: Byron
Trailer: 2006 Scamp 13' towed with a 2005 Dodge Dakota 4.7l Magnum W/full tow package (over kill)
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Originally Posted by Donna D. View Post
Condensation will happen when there's a difference between the outside temperature and the inside temperature. Sleeping under warm covers and vents cracked open balances the temperature. Turn up the furnace when you get up in the morning. And remember, when you boil water for the pasta dish or perk coffee on the stove... you're adding water to the inside of the trailer.
Science 95 (bonehead general science). Condensation occurs when air comes into contact with surfaces which the temperature is below the dew point. Dew point is the temperature where moisture condenses and is related to air temperature and relative humidity.
You're correct when you say that boiling water will increase condensation, that happens because the dew point is raised along with the RH.
By opening the ceiling vent and a window the warm moist air is let to escape, keeping the inside of trailer a bit warmer raises the surfaces temperature, hopefully to above the dew point.
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Old 04-11-2015, 07:18 AM   #16
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Name: Norm and Ginny
Trailer: Scamp 16
Florida
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Lisa, we've been traveling for 14 years and condensation has never been an issue. Of course it occurs, mostly when we're traveling in a cooler climate where the windows over the bed may be closed. In that case we take a minute and wipe it off in the morning.

It usually doesn't occur because of propane. Most propane vents outside. The only one that doesn't is the stove. Again not a problem because when we're cooking we usually open a window and vent so it doesn't get too hot in the trailer. Ginny says making a cup of tea heats the place up.

As issues this is way down on our list, nothing we give a moments concern to worrying about or fixing other than to open a window and carry a shammy. We've now spent over 3000 nights traveling and Ginny has not asked me to 'fix it'.
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Old 04-12-2015, 09:45 PM   #17
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Name: Lisa
Trailer: Boler 1974 13 ft
Florida
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Nice to hear, thanks for the input everyone. I think I'll be boondocking with propane and solar. Yipeee!

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Old 04-13-2015, 09:49 AM   #18
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Name: Dave W
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Hi John, Michael here from VA. I'm a relatively new to the group. I hope to do a winter sw trip as well, and I'm wondering if you guys were boondocking or primarily were hooked up? The heart of my question is that I've read that running the furnace will kill your battery quickly and I'm wondering how you dealt with this? Thanks!
Well Michael, if you get an old Trillium, the furnace has no fan. It is called a gravity furnace. They became unavailable in the late 70's. The applicable regulatory bodies, (CSA in Canada) felt that the surface temperature was too dangerously high. But keep the sleeping bags off the front and they provide heat and draw no electrical power. Mind you they are typically less efficient then a forced air furnace would be. That is you will burn more propane in a gravity furnace for the same amount of heat. But quiet operation, and no power draw is why I love them.
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Old 04-13-2015, 11:34 AM   #19
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Name: John Michael
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Hi John, Michael here from VA. I'm a relatively new to the group. I hope to do a winter sw trip as well, and I'm wondering if you guys were boondocking or primarily were hooked up? The heart of my question is that I've read that running the furnace will kill your battery quickly and I'm wondering how you dealt with this? Thanks!
Michael,

I think this will pretty much rehash Bryon's post as I have a very similarly equipped rig and achieved similar results. (Good post Byron, btw) On our 60 day trip we were hooked to shore power about 10 nights. Actually little of that was necessary, just came with the campground. Otherwise we dry camp (no hookups). We towed about 7000 miles in 60 days. Towing certainly topped off the battery on driving days. Our 100 watt roof mounted solar panel kept us topped off during long stays in several national parks. Except at Yosemite where we stayed 11 days. It was the shade of those darned huge Ponderosa Pines and solar was almost useless. I watched the battery discharge over 6 days and finally get to 11.9 volts which is lower than I like to see. So we hitched up, drove to a sunny meadow under El Capitan, set up our beach chairs in a meadow leaving the Scamp in full mid-day sun. After lunch, hiking and reading and maybe even a short nap the battery was charged and we were good for the rest of our stay.

Our weather included mostly days in the 60's and nights near freezing. Over the weeks we moved to a regimen of using the furnace in the morning and evening. At bedtime we turned if off and climbed under our down quilt. I think the inside temps fell to the upper 40's on a few nights, warmer otherwise. Each morning I just reached over and turned on the furnace before we got out of bed. The furnace brought the temp up in less than 5 minutes. During the day we were outside hiking, etc and the furnace was off. Overall I think we set the thermostat at 68 for about 5 hours each day (morning and evening) and the furnace ran less than an hour during those 5 hours, just cycled on and off. BTW. We kept the roof vent open at all times except during towing.

Like Byron I am a fan of LED lights, propane and solar power. And I would buy a gravity furnace in a minute if someone made one today. I think generators are unnecessary and I really get annoyed at the noise fellow campers make with them. Camping should be quiet with a breeze in the trees, babbling brooks, animal noises and maybe an occasional child being a kid. Noisy diesel engines and generators are not for me.

Cheers and have a great trip, john
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Old 04-13-2015, 08:51 PM   #20
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Name: Lisa
Trailer: Boler 1974 13 ft
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Byron, John...can you elaborate on your rigs? E.G. TV , camper, size, power source to charge battery, size of battery, what you run off the system.....basically what I need to know to set up something similar in my Boler1300. Thanks

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Old 04-13-2015, 10:17 PM   #21
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Name: John Michael
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Originally Posted by Lisa in FL View Post
Byron, John...can you elaborate on your rigs? E.G. TV , camper, size, power source to charge battery, size of battery, what you run off the system.....basically what I need to know to set up something similar in my Boler1300. Thanks

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Lisa,

I have a Scamp 13' deluxe oak. I chose the larger group 27 battery and installed a 100 watt solar panel on the roof. We are cool weather campers so did not buy an air conditioner. Tow vehicle is a Subaru Outback, 4 cyl. I changed all the lights to LED's. I have no microwave, but most other options Scamp offers.

Good luck setting up your rig. John
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