inverter size for fridge

 Hi;
For those that are already using one.
For backup power,I wish to run my full size 120volt house fridge on a
battery and inverter,so that I do not have to loaf a genny all day.
On a sears page there is a fridge that claims 468 kwhs per year.
That gives ~ 1.3 kwh hours per day.
If the fridge runs ~ 15 minutes per hour,24 hours a day then it is ~
214 watts.
This is small for a inverter except for surge.
214 watts X ~10 for surge = 2000 or 2100 watts surge.
Please check my math and reasoning.
Are any of you running a full size fridge on a 2000 watt surge
inverter ?
a gas(Dc charger) should be able to recharge 1.3 kwh quickly(short run
time).
Thanks
Mike
PS I do not check the e-mail at the above address

  bead_runner@hotmail.com (Bead Runner) wrote:

No, but my Watts Up Pro tells me that three fridges I tested recently
measure, in order of age (oldest first):

150W Run, 1,900W Peak (fridge over, non-frost-free)
200W Run, 2,400W+ Peak (SideBySide, icemaker, FF)
200W Run, 2,300W Peak (SideBySide, Icemaker, FF)

If that's really the only thing you want to run on this inverter, I'd
make sure it's rated for 2,500 to 3,000 surge, and has a good
warranty.

 
<William P.N. Smith> wrote in message

     Did you test them over a 24-hour period?  What was their daily consumption?

     Perhaps it's just because I live in South Florida, but I think that the 15
minutes/hour assumption made by the origininator of this thread is impossibly
optimistic.  I have tried this with a 1,200 watt inverter (peak capacity
unknown) with mixed results at best.  You would need a truly impressive battery
bank to make this idea practical.  For only occasional power outages, it would
be far cheaper to just run an appropriately-sized generator.  This would be a
great job for an inverter-type generator (but that is also an expensive
solution).

Vaughn

 
I tested them over several days.  Monthly KWHR averages were ,
95, and 95.  The first one is in my basement in MA, the third one is
in my kitchen in MA, and the middle one is in the Turks & Caicos
Islands.  The means that it was running at an average of 40
KWHR/month until a power failure, then it started up again at 25
KWHr/month, yeah very strange...)

Duty cycle was , 95, and (60+/- 10) percent.  Different ages,
different technologies, different environments.  I'd suggest the OP
get a Watts Up Pro and log his actual fridge for a while and then plan
either his inverter setup or a new fridge...

 

Did it have heater strips in the door frame? These are often used to
prevent condensation. They've often got a manual switch hidden away
somewhere labeled "energy saver" or "humidity control".

they, natch, waste plenty of power - both by running and by pumping extra
heat into the frame -> the refrig space.

Could be that either you flicked the wsitch or that a fused
connection/relay/whatever died during the power hit.
--
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