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Old 05-14-2010, 01:24 AM   #15
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i read an interesting article on ac-propane fridges recently.
the gist of the article is not to leave the selector on automatic.
when on shore power if the refrigeration unit fails and leaks on the auto setting, it will switch to propane and the flame can ignite the refrigerant.
is is better to leave the setting on ac or propane and switch it manually when necessary.
if you smell ammonia, turn the fridge off and ventilate the moho. do not use the fridge again until the leak has been fixed.
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Old 05-14-2010, 07:47 AM   #16
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Just for clarification...the FMCA article that is being referred too was written by a new get in bed with FMCA advertiser. GMAC Insurance Company.
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Old 05-14-2010, 04:23 PM   #17
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[QUOTE=DAN L;640856] it will switch to propane and the flame can ignite the refrigerant.
/QUOTE]

If you manage to have a small ammonia leak and the burner manages to ignite the ammonia, it will not continue to burn. You will possibly get a pop. Ammonia has a very narrow explosive limits and is hard to ignite due to this. It will not burn excerpt in the presence of a flame and sufficient oxygen. Remove the flame and it goes out. One pop and the oxygen is gone and the ammonia is out side of the explosive limits.

Ammonia is a major irritant to the respiratory system and eyes and you will get the heck out of there well before it reaches the explosive limits.

I think some one is confusing ammonia and propane.

It never ceases to amaze me at the garbage that insurance companies and lawyers come up with.

Go ahead and run your frig on propane and auto switch over and enjoy life.

Jim, has anyone challenged the GMAC garbage?

Ken
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Old 05-16-2010, 10:21 AM   #18
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Originally Posted by DAN L View Post
i read an interesting article on ac-propane fridges recently.
the gist of the article is not to leave the selector on automatic.
when on shore power if the refrigeration unit fails and leaks on the auto setting, it will switch to propane and the flame can ignite the refrigerant.
is is better to leave the setting on ac or propane and switch it manually when necessary.
if you smell ammonia, turn the fridge off and ventilate the moho. do not use the fridge again until the leak has been fixed.
Hi Dan,
Do you recall in the article why they said the power source would switch from AC to propane in the event of a cooling unit leak? It seems to me that as long as the AC power source is available there would be no need to switch. I don't see the link between the power source and a cooling unit leak. I always leave my refrigerator in Auto so if the park loses power while I'm away for a few days it will switch to propane.
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Old 05-16-2010, 10:42 AM   #19
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/QUOTE]


Jim, has anyone challenged the GMAC garbage?

Ken[/QUOTE]

Just me...

This is GMAC's response posted on the FMCA forum...

Greg Helm, GMAC’s director of claims, explains why GMAC advised driving with the propone off:

“I think folks may be interpreting this as a fear of a fire being caused because the propane is on while driving. What we’re really getting at is that if an accident occurs while driving with the propane on, there is an increased risk of fire as a result of the propane being on/open. There are certainly safety procedures built into the RV, but they are not fail-safe.

“In the end, this is a personal choice that a customer has to make — the risk is small, but the results can be significant. Organizations focused on safety will side toward keeping the propane off almost universally.

“Having said that, if someone chooses to drive with the propane on and something happens, we still have coverage for that loss (provided all other policy conditions/coverages are in order).

“Our position is focused on safety, but we also understand the RV lifestyle and that there is a convenience aspect with this that a customer may weigh more heavily. We handle covered losses the same, whether the system was on propane or not. We do not use this as a reason to decline claims.”
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Old 05-17-2010, 02:47 AM   #20
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Propane

Jim - "Organizations focused on safety will side with keeping the propane off almost universally" - if these 'organizations' had their way RV's would be classified as being too dangerous to drive on public streets - what about vehicles that use propane and natural gas as an engine fuel? - or other machinery such as a forklift in a warehouse with some models runing on propane vapour and some on liquid? - or the icemaking machines inside an enclosed arena with a skating rink? - insurance companies use statistics as one of the determining factors to form their policies and these 'safety organizations' can be beneficial to consumers or you can have someone who is very opinionated running one of these groups ( who may not like RV's ) and will do everything possible to make the statistics look bad and you end up with an 'us versus them' battle - RV's are no different than any other vehicle with an on board propane system - if this company uses these organizations as a reference point without contacting the manufactures of RV's and appliances and the propane systems and getting the true facts about what they are insuring, then it's time to change your insurance company - also FMCA is endorsing this -not a good situation- would the insurance coverage be different for an RV that had a fridge affected by the recalls than one that wasn't if something happened? - in the insurance business everything is subject to interpretation and it wouldbe interesting to hear from from any forum members who have had to make a claim on their RV's .
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Old 05-17-2010, 10:53 PM   #21
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Have to agree with all TXiceman said (spent many years in the trade). As I have only been RVing a bit over 35 years will present my limited experience/opinon that I feel it is safe to operate on propane anywhere except in a refueling area. Always turn my frig off prior to pulling up to pumps and back on after pulling away. Use 'auto" all the time
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Old 11-03-2010, 09:26 PM   #22
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Well assuming this is a serious question here goes.

There's approximately 91,500 btu's in a gallon of propane. I have a 12 cu/ft Norcold refrigerator that burns 2400 btu/hr. So one gallon of propane will last about 38 hrs. However that's if the refrigerator runs constantly. Again, assuming it runs for 8 hours out of a 24 hr. period a gallon of propane should last about 5 days. Naturally it all depends on how hot the outside temperature is, how full the refrigerator is, the temperature setting and how often you open the door. If you have a 30 gallon propane tank it should last about 150 days.

Mathematically correct, but tanks are usually measured in pounds, like the typical 20lb tank on a gas grill, or like the 20 or 30lb tank(s) on RVs. Propane weighs about 4lbs per gallon, so a typical 20lb tank would have 5 gallons of propane. I'm betting you meant a 30 POUND tank (typical on an rv), not a 30 GALLON tank. So in your math you would have about 38 days on one 30lb tank. Which is about what mine burns, 1lb/day.
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Old 11-04-2010, 09:32 PM   #23
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AS with most insurance companies, I believe they're just full of crap, pure & simple. They know very little and talk a lot.
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Old 11-04-2010, 09:47 PM   #24
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Mathematically correct, but tanks are usually measured in pounds, like the typical 20lb tank on a gas grill, or like the 20 or 30lb tank(s) on RVs. Propane weighs about 4lbs per gallon, so a typical 20lb tank would have 5 gallons of propane. I'm betting you meant a 30 POUND tank (typical on an rv), not a 30 GALLON tank. So in your math you would have about 38 days on one 30lb tank. Which is about what mine burns, 1lb/day.
Hi West Texas...........you are essentially correct however most motorhomes are equipped with a permanently mounted tank that is sized in gallons of water capacity (w.c.). The propane capacity is 80% of the w.c.
Travel trailer and fifth wheel trailers typically have DOT cylinders that are sized in pounds.
So, if RJay has a motorhome he probably has a permanently mounted tank.
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Old 11-04-2010, 10:04 PM   #25
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Hi West Texas...........you are essentially correct however most motorhomes are equipped with a permanently mounted tank that is sized in gallons of water capacity (w.c.). The propane capacity is 80% of the w.c.
Travel trailer and fifth wheel trailers typically have DOT cylinders that are sized in pounds.
So, if RJay has a motorhome he probably has a permanently mounted tank.
Exactly. My propane tank is permanently mounted with a capacity of 32 gallons or approx. 25 gallons of propane when properly serviced.
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Old 11-04-2010, 11:01 PM   #26
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Quote:
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Well assuming this is a serious question here goes.

There's approximately 91,500 btu's in a gallon of propane. I have a 12 cu/ft Norcold refrigerator that burns 2400 btu/hr. So one gallon of propane will last about 38 hrs. However that's if the refrigerator runs constantly. Again, assuming it runs for 8 hours out of a 24 hr. period a gallon of propane should last about 5 days. Naturally it all depends on how hot the outside temperature is, how full the refrigerator is, the temperature setting and how often you open the door. If you have a 30 gallon propane tank it should last about 150 days.

what he said
i filled my rv tank last spring (march) and have been scooting allover running the fridge on lp, about 45 days on gas so to speak
this past week i had the tank topped off, took less than 4 gallons to be full. oh i used the water heater on gas for about 7 days as we were on a 30 amp pole for a week. this was also included in the top off
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Old 11-04-2010, 11:12 PM   #27
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Every spring I do my usual checkout, part of that is checking the fridge thermocouple. After running for a few minutes with the cover off I'll blow the flame out. As I'm drawing my next breath the igniter is popping away to relight it. If I keep it blown out it goes into check mode. It's very quick to detect the flame went out and tries to relight it before any appreciable gas escapes. I then put all the shielding back on.

I'm not terribly worried about it, seems to be a pretty sound system.
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Old 11-05-2010, 08:23 AM   #28
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Exactly. My propane tank is permanently mounted with a capacity of 32 gallons or approx. 25 gallons of propane when properly serviced.
Wow, those are big tanks. Puts the twin 30 pounders (12 gallons) I have on my travel trailer to shame!

TX
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