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Heat/Cool

Heat/Cool

Cooking, Heating and Cooling

Conventional electric cooking, space heating and water heating equipment use a prohibitive amount of electricity. Electric ranges use 1500 watts or more per burner, so bottled propane or natural gas is a popular alternative to electricity for cooking. A microwave oven has about the same power draw, but since food cooks more quickly, the amount of kilowatt hours used may not be large. Propane and wood are generally better alternatives for space heating. Good passive solar design and proper insulation can reduce the need for winter heating. Evaporative cooling is a more reasonable load than air conditioning and in locations with low humidity; the results are almost as good. One big plus for solar cooling: the largest amount of solar energy is available when the need for cooling is the greatest.

 

Refrigeration

Gas powered absorption refrigerators are a good choice in small systems if bottled gas is available. Modern absorption refrigerators consume 5-10 gallons of LP gas/month. If an electric refrigerator will be used in a standalone system, it should be a high-efficiency type. Some high-efficiency conventional AC refrigerators use as little as 1200 watt-hours of electricity/day at a 70º average air temperature. A comparably sized Sun Frost refrigerator/freezer uses half that amount of energy and a SunDanzer refrigerator (without a freezer) uses less than 100 watt-hours per day. The higher cost of good quality DC refrigerators is offset by savings in the number of solar modules and batteries required.

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Ceiling Fan 12 Volt DC, 42" Oak Blades, Brass Hub w/Remote, KSOL Power
$189.90
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This is a 42" four-blade ceiling fan with light oak wood blades and a bright brass housing. Ideal for off-grid homes, RVs, etc. Learn More
SOUTHWEST SOLAR SOLAR CHILL 1412XP 14" 12 VOLT DC EVAPORATIVE COOLER
$1,125.00
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Air Flow 1,000 CFM. 38-52 watts used. 60-80 PV watts recommended. Learn More
SNAP-FAN DC POWERED VENTURI EXHAUST FAN 12" 12/24/32 VOLT DC
$349.00
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These fans have a 3-wing polypropylene fiberglass blade mounted in a square injection mounded fiberglass venturi frame for easy mounting and long life. Learn More
SOUTHWEST SOLAR SOLAR CHILL 1812XP 18" 12 VOLT DC EVAPORATIVE COOLER
$1,249.00
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Air Flow 1,500 CFM. 53-73 watts used. 85-130 PV watts recommended. Learn More
SOUTHWEST SOLAR SOLAR CHILL 2412XP - 24", 12 VOLT DC EVAPORATIVE COOLER
$1,595.00
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Air Flow 3,000-4000 CFM. 80-120 watts used. 120-200 PV watts recommended. Learn More
SOUTHWEST SOLAR SOLAR CHILL 4212XP 42" 12 VOLT DC, BELT DRIVE, EVAPORATIVE COOLER
$3,595.00
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Air Flow 8,000 CFM. 200-400 watts used. 450-600 PV watts recommended. Learn More
SOUTHWEST SOLAR SOLAR CHILL 1424XP 14" 24 VOLT DC EVAPORATIVE COOLER
$1,125.00
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Air Flow 1,000 CFM. This unit uses 38 to 52 watts at 24 volts DC and can be run direct with a 180 watt, 24 volt nominal PV panel, although we recommend deep cycle batteries for best performance. Learn More
SOUTHWEST SOLAR SOLAR CHILL 1824XP - 18", 24 VOLT DC EVAPORATIVE COOLER
$1,249.00
Add to Cart
Air Flow 1,500 CFM. This unit uses 38 to 52 watts at 24 volts DC and can be run direct with a 180 watt, 24 volt nominal PV panel, although we recommend deep cycle batteries for best performance. Learn More
SOUTHWEST SOLAR SOLAR CHILL 2424XP - 24", 24 VOLT DC EVAPORATIVE COOLER
$1,595.00
Add to Cart
Air Flow 3,000-4000 CFM. This unit uses 80-120 watts at 24 volts DC and can be run direct with a 180-200 watt, 24 volt nominal PV panel, although we recommend deep cycle batteries for best performance. Learn More
SOUTHWEST SOLAR SOLAR CHILL 4224XP - 42", 24 VOLT DC, BELT DRIVE, EVAPORATIVE COOLER
$3,595.00
Add to Cart
Air Flow 8,000 CFM. This unit uses 200-400 watts at 24 volts DC and can be run direct with 450-600 watts, 24 volt nominal PV array, although we recommend deep cycle batteries for best performance. Learn More

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