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Old 03-15-2017, 06:12 PM   #11
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I find when I drive with my fridge on 12volt it barely keeps the temperature where it was. Is this normal? I know it is drawing from my batteries because I once left the thing on while away from the coach for a couple of hours and when I checked my house batteries they were in need of charging.
This is typical for 3 way absorption refrigerators. On shore power, the boiler draws around 350 watts but in the DC mode it's around 250 watts, close to 20 amps at 12 volts which accounts for the battery discharge you observed. The DC mode is barely able to hold refrigerator temperature. Some systems won't even permit 12 VDC operation if the ignition is off but yours apparently will..The most efficient way of running the fridge underway or at rest is on propane. There are differing opinions regarding the use of propane while underway. Some regard it as unsafe, but I ran propane underway for years without incident and shut it down only when fueling.
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Old 03-15-2017, 06:26 PM   #12
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There are differing opinions regarding the use of propane while underway. Some regard it as unsafe, but I ran propane underway for years without incident and shut it down only when fueling.
I have read that some experience the flame going out when travelling with the propane going. What I wonder is does the propane keep flowing? Or does it stop when the flame goes out?
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Old 03-15-2017, 07:02 PM   #13
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I have read that some experience the flame going out when travelling with the propane going. What I wonder is does the propane keep flowing? Or does it stop when the flame goes out?
FWIW: Back when I had a propane fridge, I never had an issue with flame-out while driving. I imagine a poorly-designed venting system might cause that.

The fuel does NOT keep flowing. There is a flame sensor. That's why you have to hold the extra button in when you light it--to override the sensor.
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