Field Test Evaluation of Conservation Retrofits of Low-Income, Single-Family Buildings in Wisconsin: Audit Field Test Implementation and Results Page: 17 of 84
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Until recently, the U.S. Department of Energy (DOE) funded low-income
weatherization activities limited to infiltration control, insulation, and
adding storm windows, with an expenditure limit of $1,000 per house. Under
these conditions, most retrofit programs operated from a fixed priority list
such as: control infiltration, insulate water heater, add ceiling insulation to
some level, and spend the remainder on storm windows. Each house received about
the same treatment, and the same amount was spent on each house.
Revised DOE regulations allow an average expenditure per dwelling of $1,600
and permit an expanded list of retrofits, including:
- heating and cooling system tune-ups, repair, and modification;
- installation of thermostat control systems, heat exchangers, and
heat pump water heaters; and
- furnace and boiler replacement.
This expanded retrofit repertoire provided options for more effective energy
savings, but it also complicated the process of selecting the best combination
DOE asked Oak Ridge National Laboratory (ORNL) to select or develop and
field test a procedure for selecting the optimum combination of building shell
and heating system retrofits for single-family dwellings. No single combination
of retrofits, indeed, no single priority list will give optimum results more
often than occasionally. The optimum combination of retrofits always depends on
the characteristics of the house which is to receive the retrofits. This fact
led to the necessity of using a retrofit audit to find the optimum retrofits for
individual houses. Another report in this series (ORNL/CON-228/P3) describes
the audit-directed retrofit program (ADRP) developed in response to DOE's
The field test was designed to test the ADRP concept. Energy savings and
cost effectiveness of the savings were used as measures of ADRP performance.
The field test was performed during the winter of 1985-86 in four South Central
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McCold, L.N. Field Test Evaluation of Conservation Retrofits of Low-Income, Single-Family Buildings in Wisconsin: Audit Field Test Implementation and Results, report, January 1, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc740901/m1/17/: accessed February 16, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.