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Subject:Re: Propane and refrigerator success
From:Eric Caron
Date:Sat, 27 Jun 2015 15:29:53 -0400

Hi Jeff,

        Just out of curiosity I’ve been watching the internal temp now that I changed over to shore power.  the internal temperature is rising and is now about 35 F  and this is more then I’d expect as it is only about 3 F warmer then this morning.  I’d guess my unit actually does a bit better on propane, certainly not more efficient on shore power.

Eric 

On Jun 27, 2015, at 2:49 PM, Jeff Palmer <jpalmer@MYMTS.NET> wrote:
> 
> Sounds logical but my heart tells me it gets colder on electricity. Of course my hearts only 50% efficient :)
> 
> Sent from my iPhone
> 
>> On Jun 27, 2015, at 1:35 PM, Rocket J Squirrel <camping.elliott@gmail.com> wrote:
>> 
>> Same thing. The heat source is irrelevant, the limitation comes from the ammonia cycle.
>> 
>> -- 
>> Jack "Rocket j Squirrel" Elliott
>> 1984 Westfalia, auto trans,
>> Bend, Ore.
>> 
>>> On 06/27/2015 11:32 AM, Jeff Palmer wrote:
>>> What's the delta when it's on shore power?
>>> 
>>> Jeff
>>> 
>>> Sent from my iPhone
>>> 
>>>> On Jun 27, 2015, at 12:54 PM, Rocket J Squirrel <camping.elliott@GMAIL.COM> wrote:
>>>> 
>>>> Hey Eric,
>>>> 
>>>> I've done a lot of testing of interior temp v exterior temp on two
>>>> models of ammonia-cycle regfrigerators -- the stock Vanagon one, and a
>>>> standalone Dometic RC3000 unit that I use on longer off-the-grid camping
>>>> trips.
>>>> 
>>>> The ammonia cycle is capable of pulling something around a 40 degree (F)
>>>> differential between ambient temperature and internal temperature, and
>>>> my measurements agree with this.
>>>> 
>>>> If it's a 100-degree (F) day, the inside of the refrigerator will slowly
>>>> climb up to 60F. That is above the maximum allowable temperature for
>>>> food safety (between 40F to 140F is the "danger zone") and also results
>>>> in beer that is warmer than I like to drink.
>>>> 
>>>> --
>>>> Jack "Rocket j Squirrel" Elliott
>>>> 1984 Westfalia, auto trans,
>>>> Bend, Ore.
>>>> 
>>>>> On 06/27/2015 07:30 AM, Eric Caron wrote:
>>>>> Back to the original thread!
>>>>> 
>>>>> checked my internal refrigerator temp this morning and it is 29 F and
>>>>> the outside temperature was 67 F.  inside the van was 70 F. dial was
>>>>> set to Max cooling.
>>>>> 
>>>>> Am I correct that this is the expected functioning of my stock
>>>>> refrigerator with all stock parts and no related van mods? I was
>>>>> considering pulling it to clean and upgrade to go westy fan but am
>>>>> thinking that is probably a bad idea with it working well at this
>>>>> point.  Van has always lived inside and from what I can tell it is
>>>>> clean behind and under the unit.  I even keep the original outside
>>>>> vent cover on when not in use.
>>>>> 
>>>>> OK, I’ll admit it.  Before lighting yesterday I turned on the stove
>>>>> burners each just for a couple of seconds.  they sounded air free and
>>>>> smooth.  I’ll light refrigerator without doing this next time.  Hum,
>>>>> or maybe I’ll   keep doing it as a good luck charm!
>>>>> 
>>>>> Eric Caron 85 GL Auto Westfalia Currently on shore power waiting for
>>>>> another temp check. Beverages cold and waiting.  Is it 5:00 o’clock
>>>>> somewhere?
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>> On Jun 27, 2015, at 10:03 AM, Jim Felder <jim.felder@GMAIL.COM>
>>>>>> wrote:
>>>>>> 
>>>>>> My all-time favorite.
>>>>>> 
>>>>>> Jim
>>>>>> 
>>>>>> On Sat, Jun 27, 2015 at 9:00 AM Larry Alofs <lalofs@gmail.com>
>>>>>> wrote:
>>>>>> 
>>>>>>> And not resetting the trip odometer while the van is moving?
>>>>>>> 
>>>>>>> 
>>>>>>> On Sat, Jun 27, 2015 at 9:57 AM, Rocket J Squirrel <
>>>>>>> camping.elliott@gmail.com> wrote:
>>>>>>> 
>>>>>>>> Unless someone can come up with a scenario where air can get
>>>>>>>> into a sealed and pressurized propane line, I declare running
>>>>>>>> the stove to light the refigerator as being in the same
>>>>>>>> category as holding your tongue just right.
>>>>>>>> 
>>>>>>>> -- Jack "Rocket j Squirrel" Elliott 1984 Westfalia, auto
>>>>>>>> trans, Bend, Ore.
>>>>>>>> 
>>>>>>>>> On 06/26/2015 05:56 PM, Jim Felder wrote:
>>>>>>>>> 
>>>>>>>>> No need. The stove and the fridge are on separate gas
>>>>>>>>> "circuits"
>>>>>>>>> 
>>>>>>>>> Jim
>>>>>>>>> 
>>>>>>>>> On Fri, Jun 26, 2015 at 7:29 PM PB <pbrattan@gmail.com>
>>>>>>>>> wrote:
>>>>>>>>> 
>>>>>>>>> Oh - one more hint they gave me, and I think the manual said
>>>>>>>>> the same
>>>>>>>>>> thing:  Light the stove first.  Once the propane is
>>>>>>>>>> actually running in the stove, the fridge will start more
>>>>>>>>>> easily.
>>>>>>>>>> 
>>>>>>>>> 
>>>>>>>