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04-15-2014, 08:12 AM
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#1
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Three hours of freeze warning tonight
Ok... So here is the deal... Accuweather is projecting three hours of freeze warning tonight in central virginia. My airstream is at my offsite storage yard; has no access to shore power and is not yet titled or registered yet so I can't bring it to any location otherwise.
As part of my offsite relocation, the yard management provided a dewinterizing of the systems; fresh water is in the tank and water in the lines.
The dealer whose yard this is feels there won't be no freeze; and if there is, three hours is no issue given residual heat from today's weather.
My question is - how much caution should I err on? I am currently writing this from the dinette of the unit; my tow vehicle is plugged in and running to top off the house batteries - the batteries are at about half (if my vehicle gives nothing but a trickle charge, I'll return int eh afternoon with a genset and finally learn how it works). I assume I can just run the furnace at temperature setting 40 and keep the kitchen and bathroom doors open for heat distribution and check the batteries again tomorrow - as the same weather is expected Thursday morning.
Cheers,
Ian
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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04-15-2014, 08:26 AM
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#2
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Rivet Master
1972 Argosy 20
Snoqualmie
, Washington
Join Date: Sep 2012
Posts: 503
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If there's a chance of freezing and you've got propane, why not set the thermostat to 60 or so and let it run all night? You won't use much propane and you'll keep your trailer safe.
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04-15-2014, 08:31 AM
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#3
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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3 hours of freezing is nothing to worry about. There is no reason to take any action.
You have to start to worry if it is going to be below freezing all night and into the next day. The trailer is a large thermal storage box.
Just keep in mind it takes 80 times as much energy to lower a unit of water from 32 degrees liquid to 32 degrees solid as it did to lower it from 33 degrees to 32 degrees.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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04-15-2014, 08:33 AM
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#4
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Thanks Howie...
It's just that.... It's so beautiful and I don't want to ruin it before I've had a chance to camp In her once...! /cry
Cheers,
Ian
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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04-15-2014, 08:47 AM
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#5
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Rivet Master
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 13,669
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I agree with HowiE, but if you won't sleep because of worry, take the genie, charge the batts and set the thermo to 40 or 45. It'll be worth 8 hours of good sleep for you. (I'm the same way)
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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04-15-2014, 01:10 PM
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#6
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Overland Adventurer
1991 34' Excella
2009 34' Panamerica
Telluride
, Colorado
Join Date: May 2012
Posts: 2,476
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I concur... A few hours of freezing temps will do no harm. With that bring said the weather has been nuts. What does your weather look like past tonight?
In a pinch you could use incandescent light bulbs to warm areas like the pump strainer, pump, junctions, etc. freshwater lines never seem to freeze as fast as water in the dump valves. As a newby, remember other freeze prone areas often overlooked.... City water inlet (there is a check valve and regular in there than can be damaged). Also if you have black tank tinder/sprayer that can freeze, as well as the outdoor shower. The new units have a flimsy plastic door. That is as good as having no door.
With all that said, I'd not worry about 3 hours tonight. Longer than that.... Squirm! Plumbing work sucks!
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04-15-2014, 01:36 PM
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#7
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begorragirl
2017 25' Flying Cloud
Denville
, New Jersey
Join Date: Oct 2012
Posts: 1,029
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I am off to my first camping of year, we will have a tad of snow on ground by morning. I understand that running heat over night does not use much propane, but doesn't the fan from the furnace use a fair amount that can kill a battery by morning? I just filled my fresh water this AM and finished the dewinterizing
__________________
2006 Bambi CCD ("EireStream!!")
2010 Funfinder
2005 T@B
2001 Teardrop, Mountain Hardware Tent
For some perfection takes a little longer...
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04-15-2014, 01:40 PM
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#8
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Yeah, if I was titled and registered by now, I'd be out at tap local state campground or the KOA tonight to be sure... Oh well;
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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04-15-2014, 01:40 PM
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#9
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Overland Adventurer
1991 34' Excella
2009 34' Panamerica
Telluride
, Colorado
Join Date: May 2012
Posts: 2,476
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If you have just a single battery, yes it will be spent in the morning. Those with dual, quad or more batteries can go vastly longer. I have 2 furnaces 6 batteries in the classic. I can go 5 full days before I need to recharge. Need gas first!
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04-15-2014, 03:26 PM
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#10
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Rivet Master
2006 19' Safari SE
Tucson
, Arizona
Join Date: Jun 2007
Posts: 4,627
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I agree that you should not have a serious problem if it's at freezing for only 3 hours...but if you need peace of mind (and I get that), my suggestion is to charge the batteries as best you can and set the furnace to 40 degrees for the night. We have never winterized and that's what we do when we have short periods of freezing temps here in SoAZ.
__________________
TB & Greg and Abbey Schnauzer
AirForums #21900
PastPrez, 4CU/WBCCI
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04-15-2014, 05:43 PM
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#11
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2 Rivet Member
2014 Interstate Ext. Coach
Vienna
, Virginia
Join Date: Oct 2013
Posts: 95
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I used to be worried about this situation too. It should be fine. Congratulations on your purchase! Sleep well!
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04-15-2014, 06:28 PM
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#12
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Cheers all -- thanks -- and yeah I should know that even a solid freeze overnight doesnt mean liquids inside a system may freeze -- I've walked out to my truck too many times on a winter morning and my water bottles, while frigid, aren't iced up.
The batteries were topped off as much as I could earlier and the furnace is set to auto-run at 45 overnight, if need be. I can check it again at 8am or so for a rinse/repeat if need be.
Thanks again,
ian
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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04-15-2014, 06:31 PM
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#13
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Rivet Master
2014 27' FB Eddie Bauer
Chelsea
, Michigan
Join Date: May 2010
Posts: 1,792
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Sleep tight!
Three hours is nothing to worry about. The water temperatures in your tanks and lines are not likely to drop more than 1 or 2 degrees per hour.
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Bob Martel
WBCCI# 5766
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04-15-2014, 06:50 PM
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#14
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Moderator
2004 30' Classic Slideout
Fenton
, Missouri
Join Date: Mar 2002
Posts: 10,408
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I've been in this situation with the trailer stored outside. What I've done in the past was to go to the storage lot as late as allowed and opening up the cabinets and turning the furnace to its lowest setting. I've found that the batteries can hold up and keep the trailer at that minimum temperature. Worse case if you aren't running full batteries and they go dead, you will be that much warmer at the time of their exhaustion. It's better than doing nothing and worrying all night. If the water heater is full, turn it on. There will be heat coming off that tank that will also keep the pipes warm.
Jack
__________________
Jack Canavera
STL Mo.
AIR #56 S/OS#15
'04 Classic 30' S.O.,'03 GMC Savana 2500
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04-16-2014, 05:32 AM
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#15
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Rivet Master
2012 27' Flying Cloud
W
, New England
Join Date: Oct 2012
Posts: 7,402
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Last night in out town we had a little snow but didn't get to freezing until 3:30 am and by now we're already in the 40s. Tonight however, the forecast is 27 degrees overnight.
Is there a way to calculate how much battery and propane I might use setting the furnace to its lowest temp for the night? It's in a storage lot and I'm thinking of bringing the generators up to charge the batteries to full and keep them connected while getting the inside temp up to 60+. Then set the thermostat to its lowest temperature and disconnect the generators (I can't leave them running overnight in the lot).
Wide open to your thoughts/suggestions. Thanks!
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04-16-2014, 09:22 AM
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#16
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Well, to give everyone a status -- I arrived to the RV storage yard at 8am to find a massive 40'x40x'40' cube block of solid ice sitting there with my airstream isolated in the center. All the RV dealer had to offer me to melt the ice is a cigarette lighter, about half full....
no wait, that was a dream earlier in the morning.
So I arrived at the storage yard at 8am and the inside temp was 40 degrees, as per the thermostat setting. The house battery bank reads red on the internal status panel, so I do have some concerns over the state-of-health of the batteries. I'll get them topped off again today to the best of my ability and later look at obtaining the appropriate electrical and acids meters/bulbs to validate their health.
thanks to all for helping me not worry what wasn't an issue.
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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04-16-2014, 10:16 AM
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#17
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Rivet Master
2012 27' Flying Cloud
W
, New England
Join Date: Oct 2012
Posts: 7,402
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That status scared the stuffing out of me! I bit hook line and sinker! :-)
Glad it all worked out. Good luck with the batteries. I'm thinking if mine wear down, I can remove them and put them on the chargers I used over the winter.
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04-16-2014, 10:57 AM
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#18
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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Batteries will discharge if running the heater all night.
To charge them, if you don't have power at the storage location, remove them and take them home for an over night charge. Without power at the site anything you could do there will be a waste of time.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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04-16-2014, 11:04 AM
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#19
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Rivet Master
2012 27' Flying Cloud
W
, New England
Join Date: Oct 2012
Posts: 7,402
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Hmm. Ok, I don't have the manual with me. Can the electrical demand of the furnace be charged without the 30 amp cord? I ask because I'm wondering if it makes more sense to bring it home, park it on the street and run a power cable from my house to the trailer with the adapter that can connect a standard home 3 prong power cord to the 30 amp inlet.
Thoughts on that approach? Thanks!!
(Edit)
Also just checked TWC and temps are expected to hit 32 or below from 3 am through 8 am (current temps in low 40s) and up to 36 by 9 am. Hate to chance it....
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04-16-2014, 11:35 AM
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#20
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Rivet Master
2021 25' International
Full timer
, Virginia
Join Date: Oct 2012
Posts: 665
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Hrmmm what I did yesterday and today (and may be idiocy in my part) is park my Tow vehicle up and plugin the adapter; allowing the engine to idle for an hour or so. For me, it seemed to work - probably not as efficient as a direct plugin or genset but this was an urgent need for me. Early next week is my first opportunity to get the 3000i genset out here and power a full charge.
__________________
2024 Airstream Globetrotter 30RB
2022 Ford F350 Lariat Diesel
WBCCI 4CU 8118
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