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    Sub-Zero Designer IT-36R Refrigerator

    We expect this model to perform similarly to the tested Sub-Zero Designer IT-36RID although it may differ in price and features.

    External Dimensions
    Height: 84 in Width: 36 in Depth: 24 in

    Ratings Scorecard

    Survey Results

    Predicted Reliability

    Predicted Reliability

    Predicted brand reliability ratings are based on estimated problem rates for newly purchased built-in refrigerators, not covered by an extended warranty or service contract, within the first five years of ownership.

     /  5
    Owner Satisfaction

    Owner Satisfaction

    Brand owner satisfaction ratings are based on the proportion of members who are extremely likely to recommend their built-in refrigerator to their friends and family.

     /  5

    Test Results

    Thermostat control

    Thermostat control

    This assesses the ability of the refrigerator's thermostat to 1) achieve the desired initial set temperatures following manufacturer's recommendations 2) achieve optimum temperatures in both the fresh food and freezer sections simultaneously and 3) keep internal temperatures constant despite large changes in room temperature.

     /  5
    Temperature uniformity

    Temperature uniformity

    This performance test is based on how well a model minimizes warm and cold spots within its fresh food and freezer sections.

     /  5
    Energy efficiency

    Energy efficiency

    This reflects electricity consumption per cubic foot of measured usable storage space. For example, two models with the same energy cost per year may have different energy efficiencies -- the unit with more storage space being more efficient.

     /  5
    Noise

    Noise

    Noise level was measured when the compressor started up and during steady running. Subjective judgments by a panel of listeners supplemented our noise-meter readings.

     /  5
    Ease of use

    Ease of use

    This assesses features and design including layout, controls, and lighting.

     /  5
    Claimed capacity

    Claimed capacity

    Capacity of refrigerator is as claimed by the manufacturer.

     /  5

    About

    The Sub-Zero Designer IT-36R is part of the Refrigerators test program at Consumer Reports. In our lab tests, Built-in Refrigerators models like the Designer IT-36R are rated on multiple criteria, such as those listed below.

    Thermostat control This assesses the ability of the refrigerator's thermostat to 1) achieve the desired initial set temperatures following manufacturer's recommendations 2) achieve optimum temperatures in both the fresh food and freezer sections simultaneously and 3) keep internal temperatures constant despite large changes in room temperature.

    Temperature uniformity This performance test is based on how well a model minimizes warm and cold spots within its fresh food and freezer sections.

    Energy efficiency This reflects electricity consumption per cubic foot of measured usable storage space. For example, two models with the same energy cost per year may have different energy efficiencies -- the unit with more storage space being more efficient.

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