855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 480
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standard models. [151] Performance equivalent for international projects means that the product meets the ENERGY STAR® key product criteria for the product type outlined on the ENERGY STAR® website.
UNVENTED COMBUSTION APPLIANCES
Unvented combustion appliances such as charcoal and propane grills are a significant source of air pollution and are not permitted within the project. Lease agreements should clearly identify this requirement for all residents.
CARBON MONOXIDE MONITORING
Hard-wired CO monitors are required for each dwelling unit. A monitor must be installed on each level for dwelling units with multiple floors. Specify CO monitors with battery backup to ensure continuous functionality in the event of a power outage.
INDOOR FIREPLACES AND WOOD STOVES
Indoor fireplaces and wood stoves must include solid glass enclosures or doors that seal when closed to reduce the risk of smoke exposure for residents.
For projects that do not include smoke control elements (closed combustion or power-venting), perform a backdraft potential test for each appliance. Testing must confirm the depressurization of the combustion appliance zone is less than five Pascals. This is the pressure difference considered safe to ensure proper combustion air intake for natural draft appliances, preventing dangerous back drafting while still allowing for efficient operation. [152]
DWELLING UNIT SPACE-HEATING AND WATER-HEATING EQUIPMENT
Many residences have their own water-heating equipment in the dwelling unit, including equipment that uses combustion (i.e., gas-fired water heaters). When including these systems, design and confirm that the installed systems use a closed combustion design.
151 “Ventilation fans” , (n.d.), ENERGY STAR®, https://energystar.gov/products/ventilation_fans. 152 Fitzgerald, J., Bohac, D., “Measure Guideline: Combustion safety for natural draft appliances through appliance zone isolation”, The National Renewable Energy Laboratory and U.S. Department of Energy’s Building America Program, NorthernSTAR, and Center for Energy and Environment, (2014), https://www1.eere.energy.gov/buildings/publications/pdfs/building_america/measure_guide_combustion_safety_appliancezone.pdf.
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 470