LEED v5 BD+C Rating System_November 2025_clean - Page 094
Extracted Content
OR
Option 2. No On-Site Combustion Except at Low Temperatures (1–4 points)
Pursue any combination of the following paths for a maximum of 4 points:
PATH 1. SPACE HEATING (2 POINTS)
Design space heating to be capable of operating without on-site combustion except in low temperatures. Projects in climate zones 3 and above must have a weighted average space heating equipment efficiency of at least 1.8 COP.
The following equipment may be excluded from the COP determination:
- Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 2. SERVICE WATER HEATING (1 POINT)
Design SWH systems to be capable of operating without on-site combustion except at low temperatures. Projects with total SWH capacity exceeding 34,000 Btu/hr (10 kW) must have a weighted average service hot water equipment efficiency of at least 1.8 COP OR domestic hot water solar fraction of at least 0.4.
The following equipment may be excluded from the COP determination:
-
SWH equipment in nonresidential spaces complying with the point-of-use water heater criteria in ASHRAE 90.1-2022, Section 11.5.2.3.3, W05, without exceptions.
-
Supplemental or auxiliary heating equipment designed only for operation at low temperatures.
AND/OR
PATH 3. COOKING AND OTHER PROCESS LOADS (1 POINT)
Design cooking, laundry, process equipment, and on-site power generation except emergency support systems to be capable of operating without on-site combustion. Projects that do not have these systems automatically earn this point.
The following equipment may be excluded:
- Process heating equipment designed for operation at low temperatures.
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, November 2025 Edition 87