Man Retrofits Freezer to Make an Ultra-Efficient Fridge

An off-grid experimenter in Australia, Tom Chalko, has retrofitted a chest freezer to create a fridge that uses only 100 watt-hours (0.1 kWh) per day! Why a chest freezer? Tom points out that vertical door refrigerators are inherently inefficient. As soon as you open a vertical fridge door the cold air escapes, simply because it is heavier than the warmer …

Sunfrost Refrigerators

Sunfrost refrigerators are the most efficient ones out there. Here are the specs on a typical model: Energy Consumption : 585-845 Whr / day (42-58 Amp Hours) DC, 20 kWh / month, 249 kWh / year Annual Energy Cost: $21 Capacity: 16 cu. ft. Dimensions: 62.5″ H, 34.5″ W, 27.75″ D Weight: 300 lb. (44 cu ft. volume) Available from: …

Avanti 1201W-01 CF Refrigerator (Mid Capacity)

Power Consumption: 277 kWh per year Annual Energy Cost: $23 Capacity: 11.2 cu ft Dimensions: 23.5" W, 66.75" H, 25" D Weight: 130 lb. Power: 120 V AC Best Price: $320 ( also a counter-high version available at Amazon for $139.88

NovaKool RU7600-DC

Power Consumption: 480 watt hours/day or 240 watt hours /day with insulation (70°F day) Capacity: 7 cu. ft. Dimensions: 18.5" W, 41" H, 28" D Shipping weight: 138 lb. Power: 12 or 24V DC Best Price: $1196 (E-Marine)