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06-21-2010, 12:22 PM
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#1
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Senior Member
Join Date: Jun 2009
Posts: 164
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Running fridge on propane while moving?
Our fridge in our camper runs on 110 and propane.
I am asuming that the propane is for when you are driving.
Is this correct? Is it safe to have your propane tank valve open when you are driving?
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Lady Wendolyn
2003 21 ft Forrest River Shamrock
Manitoba Canada
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06-21-2010, 12:38 PM
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#2
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Senior Member
Join Date: Apr 2008
Location: IL
Posts: 167
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We do it all the time. I have read about some dangers of doing this but you will find most all do it.
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Donna=Me Tom=DH
2 DD's-grown, 1 DS grown, 1 SIL
4 DGD's, 2 DGS, 1 Shorkie-Gidget 4 and 1 Pekingese-Mia 3
2011 Shamrock 23ss
2010 Ford F150 super cab 4 X 4
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06-21-2010, 12:46 PM
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#3
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Senior Member
Join Date: Aug 2006
Posts: 1,555
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This is usually one of those subjects that the answers you receive split down the middle between never do it and always do it.
I have always run the propane while traveling to keep the fridge cool. One trip I decided to not run with it on and by the time I got to our destination some 7 hours after leaving, everything was fairly warm, so I have not done it since.
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06-21-2010, 01:16 PM
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#4
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Senior Member
Join Date: Jun 2009
Posts: 164
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Thank you . . .
Just wanted to confirm that we were o.k. to do that. I am comfortable with the risks.
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Lady Wendolyn
2003 21 ft Forrest River Shamrock
Manitoba Canada
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06-21-2010, 01:30 PM
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#5
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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I have heard you should close the valves while refueling, but I never have.
Diesel is not all that flammable. It might be an issue with gasoline on a hot summer day though.
I see people using cell phones while filling their tanks and you are more likely to blow up doing that than a propane pilot started fire.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-21-2010, 01:32 PM
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#6
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Senior Member
Join Date: Sep 2009
Location: Maple Ridge, BC, Canada
Posts: 640
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When taking a Ferry Boat or driving thru tunnels propane must be turned off.
...VTX-AL
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06-21-2010, 04:40 PM
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#7
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Senior Member
Join Date: May 2010
Location: Calgary Alberta Canada
Posts: 108
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As far has i know, its the law to keep your propane tanks closed up here in canada.
Kevin
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Kevin & Debbie and our little dog Emma
2004 F-150 Lariat 4X4 Ext Cab 5.4
2010 Flagstaff Shamrock Hybrid 19
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06-21-2010, 05:27 PM
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#8
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Gravity
It's not just a good idea.
It's the law.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-22-2010, 04:43 AM
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#9
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Senior Member
Join Date: Sep 2007
Posts: 3,260
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Why is it that people take chances? Propane is highly flammable, it is heaver then air and collects at the lowest point, the more that collects the bigger the boom not that it matters at that point.
Not only for your sake but everyone else around you the tanks should be shut off before you pull up to the fuel pumps no matter if it is gasoline or diesel. One spark at the fuel pumps from a leaking propane tank and the entire gas station and the people around will disappear from the earth.
All you need is is static discharge from a cell phone around a leaky propane tank from your camper while pumping fuel and I am sorry but I have a real problem when it comes to safety......cell phones is another issue at gas stations.
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06-22-2010, 07:15 AM
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#10
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Point Taken
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-22-2010, 08:42 AM
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#11
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Senior Member
Join Date: Jun 2009
Posts: 164
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We definitely agree with the turning the tanks off when refuelling . . .it only makes sense. It is good to be well informed . . . I remember my dad fuelling the car with a cigarette hanging out of his mouth when I was a kid.
Coincidently, last week I sat in on a fire safety training with the fire dept. /arson squad, because we have foster children, so we need to take this training once per year.
As well as the situations you just mentioned, The fire fighter trainer told us that you should never fill a Jerry can with gas, while it is in a truck bed. That there is a big build up of static electricity the exists in truck beds (not sure why), and there are numerous explosions from this each year , so always fill them on the ground! . . . who would have
thought??
__________________
Lady Wendolyn
2003 21 ft Forrest River Shamrock
Manitoba Canada
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06-22-2010, 09:01 AM
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#12
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by ladywendolyn
The fire fighter trainer told us that you should never fill a Jerry can with gas, while it is in a truck bed. That there is a big build up of static electricity the exists in truck beds (not sure why), and there are numerous explosions from this each year , so always fill them on the ground! . . . who would have
thought??
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There is a video on U-tube showing a pickup truck exploding in flames because of a gas can fill up on the bed of the truck.
I always "ground" the plastic can (is it still a can if it is plastic? ) and make sure the nozzle touches the inside of the filler spout while filling.
This bleeds off the static charge between the nozzle and the plastic. The static builds up very fast (high fuel flow rate makes more static) and it does take time for it to dissipate through the plastic to the ground. If you just squirt it in to the can, the static has to travel through the fuel to get to the ground.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-22-2010, 12:17 PM
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#13
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Moderator Emeritus
Join Date: Sep 2008
Location: Shenandoah Valley of Virginia
Posts: 9,280
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Quote:
Originally Posted by rockwood06
Why is it that people take chances? Propane is highly flammable, it is heaver then air and collects at the lowest point, the more that collects the bigger the boom not that it matters at that point.
Not only for your sake but everyone else around you the tanks should be shut off before you pull up to the fuel pumps no matter if it is gasoline or diesel. One spark at the fuel pumps from a leaking propane tank and the entire gas station and the people around will disappear from the earth.
All you need is is static discharge from a cell phone around a leaky propane tank from your camper while pumping fuel and I am sorry but I have a real problem when it comes to safety......cell phones is another issue at gas stations.
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I agree with Wade that propane can be a dangerous liquid/gas. But a leaking propane system at the gas pumps would not be my biggest concern. Most of the time, people are careful at the gas pumps……but I still see the occasional coffin nail hanging form someone’s mouth while pumping gas……I get out of there as quick as possible.
I think the more dangerous area to have a leaking propane system is when campers stop for lunch at restaurants or stop for a break at a rest area. People are walking by the camper all of the time puffing away…….oblivious that 60 lbs. of propane are a few feet away.
A closed propane system is not a worry. If you can’t smell the added odorant, then an explosion is unlikely. If you can smell the odorant, then the system needs to be shut down until the leak can be fixed.
The concern at gas stations should be the fact that there is an open flame providing heat needed for an absorption refrigerator. In the case of my setup, the open flame is 30’ away from the nozzle, and 4’ up off of the ground. Fumes from any spilled gas should hug the ground around the spill. In the case of no wind, the fumes should stay in that area. In breezy conditions, the gas fumes should dissipate to a mixture that is not combustible before it gets anywhere near my fridge. My biggest concern at a gas pump is where there are 2 pumps per island, where I pull up to the furthest pump and my camper is near the 2nd pump. In that case, someone sloppy pumping on the other side could cause a problem being so close to the open fridge flame. Again, the fumes would be 6’ away, but I can see the potential there. The solution there would be to shut down the propane, and cut it back on after leaving the pumps.
A much more dangerous RV scenario is in the smaller Class Bs, Cs, and maybe some As where the gas fill is within a couple feet of the fridge.
Having a truck camper and a pop-up with ice boxes, and a Trailmanor with a 3 way fridge, this is the 1st camper that I have owned with a 2 way fridge. That took a little getting used to, and I read up as much as possible on the pros and cons with leaving the propane on. I know it has to be safer to go down the road with the propane off, but it just ain’t practical. I want my beer cold after a day of driving……..that is the 1st chore on my setup list…..have beer.
Like Wade, I too have a real problem when it comes to safety. If there were a practical and safer way to keep my food cold, then I would do it. But on the bigger fridges that are now put in our conventional campers, propane seems to be the best option. There was a thread a while back that used an inverter to power their fridge on 110 volt during transit, but it looked rather involved, and I never did hear how well it worked.
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Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS
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06-22-2010, 12:38 PM
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#14
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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ooorah
I too like a cold brew right after setting up.
Since I hate hauling ice to the campground for no good reason, The only cold beer is in the fridge.
__________________
Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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06-23-2010, 08:38 AM
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#15
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Member
Join Date: Aug 2006
Posts: 83
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Quote:
cell phones is another issue at gas stations.
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That is true. They are also a big problem while piloting your RV down the road.
I have my frig on all the way when I drive from NH to Indiana 2 times a year. My frige is on the copilot side on my truck and the gas cap is on the drivers side. I do not turn it off while I am gassing up.
Dick
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06-23-2010, 11:02 AM
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#16
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Member
Join Date: Jun 2010
Posts: 65
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I found my fridge runs off the battery or hook up to the truck while driving...never had a warm fridge even after a 10 hour trip.
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06-23-2010, 12:57 PM
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#17
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Senior Member
Join Date: Sep 2009
Location: Maple Ridge, BC, Canada
Posts: 640
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Quote:
Originally Posted by masonga
I found my fridge runs off the battery or hook up to the truck while driving...never had a warm fridge even after a 10 hour trip.
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You must have a 3-way fridge (110VAC, 12DC & propane) - These are rare birds and usually found on tent trailers only. TT's, 5er's and MH these days usually are just 110VAC and Propane.
...VTX-AL
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06-23-2010, 01:27 PM
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#18
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Member
Join Date: Jun 2010
Posts: 65
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Quote:
Originally Posted by VTX Al
You must have a 3-way fridge (110VAC, 12DC & propane) - These are rare birds and usually found on tent trailers only. TT's, 5er's and MH these days usually are just 110VAC and Propane.
...VTX-AL
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Either that or it is just well insulated...I turn it on at least 24 hours prior to departure to let it get good and cold before we leave....
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06-23-2010, 01:30 PM
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#19
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Senior Member
Join Date: Apr 2010
Posts: 107
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If cell phones at a gas pump are dangerous, why are there no signs prohibiting their use while pumping gas? I have never seen a lit cigarette ignite gasoline or the fumes of gasoline. I have put cigarettes out in a coffee can filled with gasoline without incident. While I am not telling y'all to run out and do all that, some people need to loosen up a bit. If you had to worry about propane in a moving trailer, then the accumulation inside the trailer from a leaking line would be my biggest concern. However with my trailer, it the line leaked and it blew up, my problems with my POS Concertone 7X75 would be over.
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Frank and Jean
Retired Navy
DAV Life Member
'09 Rockwood Roo 233s
'03 1500 Silverado LS
I didn't say it was your fault, I said I was going to blame you.
It may be that your sole purpose in life is simply to serve as a warning to others.
The things that come to those that wait will be the scraggly crappy junk left by those that got there first.
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06-23-2010, 01:46 PM
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#20
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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A little Chemistry
Gasoline is not flammable. Gasoline VAPORS are. If the gas is cold enough the vapor pressure is so low there are not enough vapors to support combustion (too lean a mixture).
Gasoline vapors on the other hand are explosively flammable.
A lit cigarette, RF energy from your cell phone, or static electricity from filling a plastic gas can can ignite vapors from a LONG way away if the temperature is high enough.
You can demonstrate this yourself by smelling for fuel while filling your tank. In the summer, the smell of gasoline is very strong. In the winter you may not be able to smell it at all.
So, you say. Why does my car start in the winter? Well, Virginia, the older engines used a choke and engine compression lower the atmospheric pressure and atomize the fuel in the intake manifold. This lower pressure allows vapors to form at much lower temperatures.
Newer engines with fuel injection atomize the fuel in the chamber and compression does the rest.
No choke needed in summer. Guess why?
Popeye PS:
There are cell phone signs at most of the stations I have used. You might need to look for them. They have that circle with a bar through them.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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