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CAUTION STATEMENT |
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TURN OFF UTILITIES: Turn off electricity, gas, propane, and other utilities before starting repairs, cleaning, or installations to avoid accident or injury.
BE AWARE OF LEAD-BASED PAINT HAZARDS: Many residences built before 1978 have paint that contains lead, which can pose a serious health hazard if paint, chips, and dust are not handled properly. See the U.S. Environmental Protection Agency (EPA) lead brief before disturbing painted surfaces in homes of this vintage. Follow the HUD “Lead-Safe Housing Rule” for requirements for notification, evaluation and reduction of lead-based paint hazards.
BE AWARE OF ASBESTOS HAZARDS: Homes older than 1977 may have building products that contain asbestos such as insulation, high-temperature gaskets, roofing and siding shingles, and vinyl sheet flooring. See the EPA asbestos brief before disturbing such materials.
BE AWARE OF MOLD AND MOISTURE HAZARDS: Molds can gradually destroy materials they grow on; can irritate the eyes, skin, nose, throat, and lungs of both mold-allergic and non-allergic people; can cause asthma attacks in people with asthma who are allergic to mold; and can cause other serious health problems. To learn more about preventing and cleaning up mold in homes, see these mold guides and the EPA brief on What to Wear When Cleaning Moldy Areas.
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M1. Replace Older Refrigerators with High-Efficiency Units
Description
After
lighting, refrigerators are the second largest users of electricity
in most households (not including households with electric heat
or hot water). Because refrigerators are such a significant user
of energy, they should be a focus of conservation efforts. Older
units use up to four times more electricity than the most efficient
new models available in the same size. Replacing these inefficient
units with new, more efficient refrigerators can realize substantial
energy and cost savings. In many cases, it is cost-effective to
replace older refrigerators before scheduled replacement because
of the electricity cost savings.
The most common size of refrigerators in public housing is the 14- to 15-cubic-foot range. In that range, the most efficient refrigerator available today uses 372 kWh per year. This automatic-defrost model is ENERGY STAR® qualified because it is 15 percent more efficient than federal standards require. By contrast, the average refrigerator in that size purchased before 1991 uses around 1,100 kWh, with older units using more than 1,500 kWh per year.
Energy
savings from refrigerator replacement depend on the efficiency of
the old units. In general, the older and bigger a refrigerator,
the more electricity it uses. The following table presents sample
paybacks for replacing old units in the 14- to 15-cubic-foot size
range with the most efficient model available. If the payback
is shorter than the number of years left before scheduled replacement,
it is cost-effective to replace them ahead of schedule.
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Sample
Paybacks for Replacing Older 15-cubic-foot Refrigerators with
ENERGY STAR® Models
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Old
Model Annual Energy Use (Approx. Age)
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New
Model Annual Energy Use (Approx. Age)
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Annual
Energy Savings
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Annual
Cost Savings ($0.10/kWh)
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Payback
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~800
kWh (late 1980s)
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372
kWh
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428
kWh
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$42.80
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9
years
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~1100
kWh (early 1980s)
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372
kWh
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728
kWh
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$72.80
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7.6
years
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~1400
kWh (1970s)
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372
kWh
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1028
kWh
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$102.80
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5.4
years
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Applicability
- Single-family
and multifamily buildings with refrigerators over eight years
old
Types
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Top freezer
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Bottom freezer
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Side-by-side
Considerations
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The PHA or a qualified contractor must properly dispose of old
refrigerators.
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Generally, automatic-defrost models are less efficient than ones
with manual defrost.
Performance/Economics
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The most efficient new models are two to four times more efficient
than older refrigerators.
Resources/Links
ENERGY STAR Program: Refrigerators. Identifies refrigerators that
meet Energy Star program requirements.
PHECC ENERGY STAR Page. Includes PIH notice encouraging the use of ENERGY STAR in HUD housing, a fact sheet on how PHAs can use ENERGY STAR, and a process for bulk purchasing refrigerators.
HUD Energy Efficient Rehab Advisor. Discusses upgrading to energy efficient kitchen appliances.
Energy Conservation for Housing
A Workbook, HUD, September 1998. Pages 7-141 through 7-144
address replacing older refrigerators with high efficiency units.
Improving
Energy Efficiency in Apartment Buildings, American Council
for an Energy-Efficient Economy, 1995. ISBN 0-918249-23-6. Pages
116 through 118 address replacing older refrigerators with high-efficiency
units.
Consumer
Guide to Home Energy Savings, American Council for an Energy
Efficient Economy, 1999, ISBN 0-918249-38-4. Pages 137 through 141
address replacing existing refrigerators with high efficiency units.
High-Efficiency Refrigerators. A brief overview of high-efficiency refrigerators
that includes information on cost-effectiveness and limitations.
Top-Rated
Energy-Efficient Appliances: Refrigerators. The American
Council for an Energy-Efficient Economy's list of the top-rated
refrigerators and freezers.
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