US Green Building Council Exam LEED-AP-Homes Topic 7 Question 6 Discussion

The LEED for Homes Rating System (v4) includes the Energy and Atmosphere (EA) Credit: Space Heating and Cooling Equipment, which rewards the use of high-efficiency HVAC equipment that exceeds baseline standards.

According to the LEED Reference Guide for Homes Design and Construction (v4):

EA Credit: Space Heating and Cooling Equipment (1--4 points)

Install HVAC equipment that meets or exceeds the efficiency requirements of the ENERGY STAR for Homes program, Prescriptive Path, which specifies minimum efficiency ratings (e.g., SEER, AFUE) for heating and cooling systems.

Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit: Space Heating and Cooling Equipment, p. 128.

The LEED v4.1 Residential BD+C rating system confirms:

EA Credit: Space Heating and Cooling Equipment

HVAC equipment must exceed the efficiency standards set by ENERGY STAR for Homes, Prescriptive Path, to earn points for improved energy performance.

Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.

The correct answer is ENERGY STAR for Homes, Prescriptive Path (Option A), as this is the benchmark for high-efficiency HVAC equipment in this credit.

Why not the other options?

B . ASHRAE 2001 Handbook of Fundamentals: This provides general HVAC design guidance but is not a specific efficiency standard for LEED credits.

C . International Energy Conservation Code: IECC sets baseline energy codes, not the higher efficiency requirements for earning points.

D . ACCA Manual J guidelines: These are used for sizing HVAC systems, not setting efficiency standards.

The LEED AP Homes Candidate Handbook emphasizes EA credits, including HVAC efficiency, and references the LEED Reference Guide for Homes Design and Construction as a key resource. The exam is based on LEED v4, ensuring the relevance of ENERGY STAR standards.

References:

LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Space Heating and Cooling Equipment, p. 128.

LEED v4.1 Residential BD+C, USGBC LEED Credit Library, accessed via LEED Online (https://www.usgbc.org/credits).

LEED AP Homes Candidate Handbook, GBCI, October 2024, p. 12 (references study resources and exam scope based on LEED v4).

USGBC LEED for Homes Rating System (v4), available via USGBC website (https://www.usgbc.org/resources/leed-homes-design-and-construction-v4).

LEED v4.1 for Homes, USGBC, accessed via LEED Online, confirming ENERGY STAR requirements.