[VAC] Re: refrig

["Howard Lefkowitz" <wa3vez@xxxxxxxx>]

The battery operated Dometic uses about 25 amps at 12 volts in my three-way
fridge.  You cannot supply this level of current from the tow vehicle when
towing a trailer.  The alternator does not put out sufficient current or
voltage and the length of wire lines needed would require something on the
order of battery size cables.  Even in my 1990 Motor Home I find the
batteries in need of a good charge after several hours of driving when using
the 12 volt mode.  At one time I used to run the generator about an hour,
while traveling, to charge the batteries and operate the fridge.  Several
years ago I decided that this was not a very good solution  and started to
use the gas mode while traveling.  When entering a no gas tunnel etc. I
simply stop and turn off the gas.  I have found that all of the no gas areas
are well marked with signs.  During a ferry ride on the Newfoundland Caravan
the gas had to be turned off during the entire ride.  As long as the fridge
is not opened it would probably keep everything frozen for 12 or 15 hours
with no problems.  My next box will be a two-way 110VAC/propane.