Hers Rater Questions Latest Update 2025-2026 130 Questions and 100% Verified Correct Answers Guaranteed A+
250 Pascals is how many inches of water gauge? - CORRECT ANSWER: 1 Pascal =
0.004 inches at sea level 250 Pascals = 0.004*250 inches at sea level = 1 inch at sea level
A homeowner has paid for 17 CCF of natural gas on their monthly bill. How many Btu's
did they use? - CORRECT ANSWER: 1 CCF = 102,000 Btu's
17 CCF = 17 x 102,000 = 1,734,000
Adiabatic walls are found in what type of construction? - CORRECT ANSWER:
Multifamily
An air source heat pump? - CORRECT ANSWER: 7.8 HSPF heating mode, 13 SEER
cooling mode
Can any energy analysis software be used to produce a HERS rating? - CORRECT
ANSWER: No -- The software must be a RESNET accredited software tool.
Describe a "Section View" - CORRECT ANSWER: A sectional view is like looking at a slice of the house. It shows the details of the construction as well as the relationships between floors/ceilings and header heights
Do thermal breaks in metal framed windows raise or lower the U-factor? - CORRECT
ANSWER: Lowers the U-factor.
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Homes are heated or cooled by what types of heat transfer? Give examples. -
CORRECT ANSWER: Convection (forced air systems), Radiation (radiant floors)
How are window dimensions determined? - CORRECT ANSWER: By measuring the
rough opening (frame + glass).
How can you tell if a coating is installed on a window? - CORRECT ANSWER: Use a
lighter or match and count the reflections (1 reflection per pane or coating)
How do you correct for magnetic deviation? - CORRECT ANSWER: Magnetic North
must be determined with a compass that hasn't been affected, and then the affected compass is pointed in the known direction of magnetic North. If the affected compass is off to the West, the appropriate number of degrees is added; if the compass is off to the East, the appropriate number of degrees is subtracted. This information should stay with the compass as a correction card.
How do you determine the orientation of the windows in an exterior wall? - CORRECT ANSWER: Stand with your back to the outside of the wall and look at the direction of the compass needle in reference to the direction you are facing.
How is the HSPF calculated? - CORRECT ANSWER: Btu's of heating / watts of
electricity to produce the heating
How is the SEER calculated? - CORRECT ANSWER: Btu's of cooling / watts of
electricity to produce the cooling
How many gallons of mid-grade gasoline equal the energy content of 1 cord of apple
wood? - CORRECT ANSWER: 1 MMBtu = 1,000,000 Btu
28.72 MMBtu = 28,720,000 Btu
- gallon of mid-grade gasoline = 125,000 Btu
28,720,000 Btu / 125,000 Btu = 229.76 gallons of mid-grade gasoline 2 / 3
- gallon of gasoline = 0.125 MMBtu
28.72 / 0.125 = 229.76 gallons of gasoline
How many kWh are in 14,000 Btu's? - CORRECT ANSWER: 1 kWh = 3,413 Btu's
14,000 Btu's / 3,413 Btu's = 4.1 kWh
How many therms are in 18 CCF of natural gas? - CORRECT ANSWER: 1 CCF of
natural gas = 1 therm 18 CCF of natural gas = 18 therms
How many therms? - CORRECT ANSWER: 1 CCF of natural gas = 1 therm
17 CCF of natural gas = 17 therms
How many tons of lignite coal would it take to equal the energy content of 1 cord of
Pinon Pine? - CORRECT ANSWER: 1 cord of Pinon Pine = 33.50 MMBtu
- ton of lignite coal = 13.95 MMBtu
33.50 MMBtu / 13.95 MMBtu = 2.4 tons of lignite coal
How much energy consumption is typically accounted for by lights and appliances? -
CORRECT ANSWER: 20% of the home's energy consumption.
How much heat flows through that wall if the interior temperature is 70°F and the
outside temperature is 34°F? - CORRECT ANSWER: Q = U x A x ∆T
Q = 0.0578 x 105 x 36 Q = 218 Btu/hr
How much heat flows through that window if the interior temperature is 73°F and the
outside temperature is 45°F? - CORRECT ANSWER: Q = U x A x ∆T
Q = 0.43 x 15 x 28
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