efficient 20 cu' Refrigerator/Freezer [RE-wrenches]

[matthew tritt]

James,

This is also a subject around our house lately. We have a 1950 GE, 12 cu ft
"Combination", with a tiny freezer, which needs de-frosting 2X per year. I
love the thing for it's looks and because it uses about 1.2 (less in a cool
year) kWh a day, and it's QUIET. Most new reefers seem to run all the time,
the old ones don't. But, because the freezer's so small, there are forces at
work to get a new one. Oh well.

We found an 18.2 cu ft Kenmore that uses 479 kWhrs/yr, comes with an ice
maker, and costs $450.00. Not as efficient as the 20 cu ft one you found,
but also not as expensive. We were going to get a RF 16 Sunfrost, but, if
you really think about it, would take years and years to make up such a huge
initial price differential; I figure well over 20 years @ $.12 per kWhr.
Hardly worth it!

Matt
----- Original Message -----
From: "James Lamb, Middle Fork Engineering" <j.lamb at pecorp.com>
To: <RE-wrenches at topica.com>
Sent: Monday, December 02, 2002 8:52 AM
Subject: RE: efficient 20 cu' Refrigerator/Freezer [RE-wrenches]


> Todd
> In 1992 I bought a Brand New cycle defrost 13.4 cubic foot General
Electric
> refrigerator for $ 285.00 one day sale 8 years ago. Its design energy
usage
> is 2 KWH/Day
> Its still running using less that a Kilowatt a day. Since the running time
> is less that half the time it should last twice as long.
> I did this 10 years ago. I guess the manufactures getting there? Why does
it
> take so long?
>
> The cycle defrost refrigerator requires you to defrost the freezer section
> only about 3-4 times a year. The freezer has its separate door and is on
> top. The refrigerator section is on the bottom with its separate door and
> has an evaporator (cooling) coil in it.  When the compressor is off, the
> temp in the refrigerator section (38 degrees) melts the ice on the coil.
> There is a small heater on that coil that turns on automatically when the
> compressor is not running. This coil is designed to keep the refrigerator
> section defrosted in the worst of conditions. I disconnected it and there
> was  no frost build up even on hot summer days. If the house is cold the
> refrigerator would not work as much and the freezer would still be below
> freezing but the ice cream would be soft.
>
> I insulated the inside the freezer section on the non coil surface area
> (right and left side of freezer). I also insulated around the outside of
the
> freezer and refrigerator.  I carefully tilted the evaporator coil  on the
> back of the refrigerator to increase air flow around it. I also raised the
> refrigerator a few inches off the floor for more air flow around it. By
> having the freezer on top, cold travels down, so this helps to use the
cold
> better. That's why the old wooded refrigerator requires  the ice to be
> placed on top.
>
>
>
>
>
>
>
> -----Original Message-----
> From: Todd Cory, Mt. Shasta Energy Services
> [mailto:toddcory at finestplanet.com]
> Sent: Monday, December 02, 2002 10:31 AM
> To: RE-wrenches at topica.com
> Subject: Re: efficient 20 cu' Refrigerator/Freezer [RE-wrenches]
>
>
> These are still pretty dismal numbers considering our sunfrost uses only
140
> kWh
> a year. It is hare to understand why manufacturers are unable to make a
> standard
> refrigerator more efficient. Yes ours is an RF12, so not as large, but
even
> running 2 would still use about 1/2 the energy use.
>
> Todd
>
>
> "David Palumbo, Independent Power & Light" wrote:
>
> > Shopping for efficient RF, 20 to 22 cubic feet.
> >
> > Have seen: Kenmore 20.5 cu' #622424 retails for $644 and uses 458
kwhr/yr.
> >
> > Kenmore 21.6 cu' #72202 retails for $899, add $ 200 for stainless
exterior
> > finish, uses 457 kwhr/yr.
> >
> > What were the numbers on the efficient Maytag that people were talking
> about
> > a year or so ago?
> >
> > Thanks,
> >
> > Dave
>
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