Refrigerator Features |
The SUN FROST refrigerator employs an array of design innovations to achieve its exceptionally low energy consumption. The cooling system on the SUN FROST is top mounted. This configuration reduces energy consumption several ways. The heat generated by the compressor and condenser (black coils on the back of many refrigerators) does not re-enter the refrigerator and also with a cooler running condenser, the efficiency of the cooling system is increased.
Comparative Energy Use |
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Sun Frost RF-16 | |
Most Efficient Competitor | |
Typical Domestic Refrigerator |
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The Sun Frost RF-19 and F-19 use a quiet and highly efficient fan to help cool the condenser; on other models, the condensers are cooled passively. Because of the efficient design of the Sun Frost, the compressors used are much smaller and produce correspondingly less noise than those found on a conventional refrigerator. These features make the Sun Frost much quieter than a conventional AC refrigerator.
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Defrosting a Sun Frost is a simple process. Frost build-up in the SUN FROST freezer is very slow because there is no air circulating between the freezer and refrigerator sections. The ice which forms in the freezer collects primarily on the ceiling. When defrosting the freezer section, the contents of the freezer may be transferred to the refrigerator section so they remain frozen. After the refrigerator has been turned off for about twenty minutes, the ice is easily removed in large pieces. There is no mop-up because the ice does not need to be melted, only separated from the flat ceiling.
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Sun Frost refrigerators keep food fresher by maintaining high humidity. This prevents freezer burn and wilting caused by water loss in food. Since there is minimal water loss in foods stored in a Sun Frost, foods often last two to three times longer than in conventional refrigerators. In typical refrigerators, water, which is part of stored food, is transformed into ice on the freezer's cooling coils. This process results in the dehydration of fruits and vegetables, increases energy consumption, and accelerates frost build-up. In a conventional refrigerator, high humidity is achieved by storing food in airtight containers which creates high humidity conditions, but cuts off the food's oxygen supply. Without oxygen, plant cells break down more rapidly, which decreases shelf life. The SUN FROST allows you to store food in breathable containers, such as paper bags, often more than doubling storage life.
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The Sun Frost refrigerator typically reduces refrigerator energy consumption by a factor of five. The accompanying cost of the solar power system is similarly reduced. The SUN FROST RF-16 12 volt DC model consumes 20 KWH per month, or an average of 53 amp hours per day. By contrast, conventional refrigerators typically consume about 110 KWH per month or 305 amp hours per day. Producing the 110 KWH needed to run this refrigerator on a solar power system would require an investment of around $12,000 in hardware, batteries, and inverter. A Sun Frost will reduce this cost by a factor of at least six because of its increased efficiency and the elimination of inverter losses. Inverters convert DC battery power to 120V AC.
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The cooling system of the SUN FROST refrigerator contains a minimal
number of moving parts. Both the DC and AC compressors incorporate highly
reliable, hermetically sealed, brushless motors.
The efficient thermal design of SUN FROST refrigerators also contributes
to their reliability. The top-mounted cooling system runs at a lower
temperature than most, which prolongs the life of the system's lubricants
and reduces mechanical strain on the compressor. The cooling system should
provide well over 15 years of trouble-free operation.
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During the summer, a typical refrigerator adds as much heat to your
kitchen as a 1000 watt heater running five hours per day!
The energy needed by your air conditioner to remove this excess heat will
be about half the energy consumed by your refrigerator. Increasing the
cost of running your refrigerator by an additional 50%.
By producing much less waste heat than a conventional refrigerator, a SUN
FROST makes your kitchen more comfortable and reduces the cost of air
conditioning your home.
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Sun Frost refrigerators are designed to be mounted on a
cabinet. With the refrigerator raised, all stored food will then be at a
convenient height.
In addition, a cabinet beneath the refrigerator provides much more
accessible storage space than a ceiling mounted cabinet. The cabinet could
be built by the homeowner to match other kitchen cabinets or supplied by
Sun Frost. Sun Frost manufactures a 13 inch high cabinet for the Sun Frost
RF-16 and RF-19 refrigerators and a 24 inch high cabinet for the Sun Frost
RF-12. Each cabinet has two large side-by-side drawers.
A Sun Frost refrigerator can be placed against a wall minimizing floor
area utilized. It will not have to be moved for either cleaning or
servicing.
RF 16 shown here with base cabinets
locally fabricated to match existing
kitchen cabinets. SUN FROST can
manufacture base cabinets which
match the refrigerator's trim and
color as shown in the photos on
our Models page.
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Each custom built SUN FROST refrigerator is available in more than 100 colors of high-pressure laminate and many natural wood finishes. The spacious interior, made from sturdy fiberglass-reinforced plastic, is exceptionally easy to clean, with no exposed ducts, tubing or inaccessible corners. The adjustable door shelves can accommodate half-gallon beverage containers, while adjustable glass shelves line the refrigerator section.
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