How should energy auditors approach assessing a home?
Use the house as a system to approach to assessing a home.
Core concepts of home performance
Don't insulate unless you air seal.
Don't air seal unless you insulate.
Don't air seal unless you have air for the fire.
Don't know if you...
✓ Heating and cooling - seasonal efficiency for fossil-fuel heating systems
range from 30 - 90%. Most older systems operate at the mid-to-lower
end of this scale.
✓ Air leakages - infiltrating air must by heated or cooled to a comfortable
temperature, and heated and cooled air is lost when air leaks out of
the building.
✓ Water heating - energy losses in heating and storage of hot water can
amount to 40% or more of that system's energy consumption.
✓ Appliances and Lighting - refrigerators, lights, entertainment systems,
computers and other appliances use considerable electrical energy
because of obsolete design, careless operations, or just the sheer
number of electrical devices in a home.
✓ Residential Behavior - The awareness and care of a buildings residents
and managers has a significant influence on how much energy the
building uses.
What are the cost effectiveness formulas?
Master01 | October, 2024/2025 | Latest update
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