Steelers
What are the two nationally recognized energy certifications for home auditors and contractors?
The Building Performance Institute (BPI) and the Residential Energy Services Network (RESNET).
What test is used to measure total air duct leakage?
A duct blower test.
What are the conditioned spaces in a residence?
Areas that are heated or cooled.
What is another term for low emittance?
Low emissivity.
What is one of the most cost-effective ways to make a home more comfortable year-round?
Add insulation to the attic.
: What tool can provide insulation level recommendations based on ZIP code and home information?
A Zip Code Insulation Calculator.
How much can homeowners cut utility bills by following energy audit recommendations?
By 15% or more.
According to the U.S. Department of Energy, what percentage of home energy use goes toward space heating and cooling?
About 55%.
What is another name for the home’s exterior?
The shell.
What does a higher R-value indicate about walls and roofs?
Better resistance to the transfer of heat.
What is carbon monoxide (CO)?
A colorless and odorless gas that can sicken or kill persons residing in the home.
: According to the US DOE, what percentage of a home’s total energy bill usually goes toward heating water?
About 12%.
Up to what R-value can cavity insulation be installed in a 2 in. x 4 in. wall?
R-15.
What causes orange streaks in a flame?
Dust particles burning.
What two terms are often used interchangeably for evaluating home energy performance?
Residential energy audit and home energy audit.
What are flexible insulation products made from mineral fibers like fiberglass and rock wool called?
Rolls and batts insulation.
Where is chimney draft measured?
In the vent stack between the combustion device and the draft diverter.
What does direct venting do?
Minimizes interaction between the furnace and other combustion appliances.
What two terms are often used interchangeably for evaluating home energy performance?
Residential energy audit and home energy audit.
What role does ventilation play in home performance?
It helps with moisture control.
What are the characteristics of a Category III furnace?
Positive vent pressure, vent gas temperatures at least 140°F above its dew point, and mid-efficiency operation.
What is draft in combustion systems?
The force that allows air to enter the combustion chamber and expels combustion gases through a vent or chimney.
What components are serviced during gas equipment preventive maintenance?
Air-side components such as the filter, blower, belt and drive, and burner section.
What type of furnaces commonly use cad cells or photo cells?
Oil furnaces (used with a primary control).
Why is adding insulation to the attic considered cost-effective?
It is relatively simple and provides significant efficiency gains.