Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "LEED Interpretation" "1413" "2006-07-13" "Homes, Mid-rise" "Do multi-family buildings with central fossil fuel fired heating systems need to have closed combustion systems?" "Yes, multi-family buildings have to have closed combustion systems. However, both multi- and single-family buildings are exempt from this requirement if the combustion system is in a detached utility building or an open-air facility (e.g. roof). If a builder can demonstrate an alternative design that meets the intent of this requirement, specific details of the system design must be submitted and the TASC will consider it. Updated 10/1/13 for rating system applicability. " "None" "None" "LEED Interpretation" "1466" "2006-04-01" "Homes, Mid-rise" "Are alcohol-based fireplaces (aka eco-fireplaces) allowed?" "Yes, but all of the requirements for natural gas and propane fireplaces must be met (e.g. glass doors, exhaust to outdoors, dedicated air, etc.) Updated 10/1/13 for rating system applicability. " "None" "None" "X" "LEED Interpretation" "1705" "2007-03-08" "Homes, Mid-rise" "Are CO monitors required if combustion equipment is outside of the thermal envelope? " "CO monitors are required under every circumstance, regardless of the type of HVAC equipment, garage type, etc. There are numerous CO deaths each year unrelated to combustion equipment that could be preventable through the use of CO monitors and alarms. Updated 10/1/13 for rating system applicability. " "None" "None" "X" "LEED Interpretation" "2137" "2008-05-01" "Homes, Mid-rise" "The Rating System does not indicate whether the CO monitors should be battery powered or hardwired. Is there a requirement, or a preference?" "LEED for Homes does not require CO monitors to be battery-powered or hard-wired, but ideally the CO monitors will be hard-wired with battery backup. Many CO deaths are caused during power outages, when homeowners operate gas-powered appliances or generators in the home. Updated 10/1/13 for rating system applicability. " "None" "None" "LEED Interpretation" "2765" "2010-01-19" "Homes, Mid-rise" "Does part (d) apply to fireplaces?" "No, part (d) does not apply to fireplaces or fireplace inserts. Updated 10/1/13 for rating system applicability. " "None" "None" "LEED Interpretation" "2766" "2010-01-19" "Homes, Mid-rise" "Does part (d) apply to woodstoves if they are used as space heating equipment? If so, can this be satisfied by having supply air, closed doors, and a chimney? This is standard practice among woodstoves." "Yes, part (d) does apply to any woodstoves or other appliances that are intended to be used for space heating. If a project does not meet the specific requirements in part (d), submit project-specific information about the specific space heating equipment (e.g. woodstove) being used and how it intends to meet the intent of the requirement. Updated 10/1/13 for rating system applicability. " "None" "None" "LEED Interpretation" "5280" "2008-02-27" "Homes, Mid-rise" "This gut rehab has a gas fireplace that is being exhausted (per EQ 2.1, part d ii) with an exhaust fan that will be mounted on the ceiling or wall near the fireplace and exhausted to the outside. The fan will be on a controller integrated with the fireplace ignition to turn on before the fireplace ignites and stay on for so many minutes after the fireplace is turned off. Will this approach meet the requirement for EQ 2.1 d ii ? It is designed to act similar to using a vented range hood over a gas stove.\n" "This approach is not allowed for a home that is pursuing LEED for Homes certification. EQ 2.1, part (a) states that ""no unvented combustion appliances are allowed."" Updated 10/1/13 for rating system applicability. " "None" "None" "LEED Interpretation" "5314" "2008-05-01" "Homes, Mid-rise" "EQ 2.1 requires a CO Detector ""on every floor."" In a multi-family project, does that mean a CO detector is required on every floor for every unit?" "Yes, a CO monitor is required in each unit. If individual units have multiple stories, then each story in each unit must have a CO monitor. Updated 10/1/13 for rating system applicability. " "None" "None" "X" "LEED Interpretation" "10385" "2014-04-02" "Homes, Mid-rise" "Are there any situations when a project can opt out of installing doors on gas fireplaces for EQ 2.1 Basic Combustion Venting Measures c) in LEED for Homes?" "Gas fireplaces (not wood burning) may choose to not install a glass door if they meet the following requirements. However, no credit may be awarded for EQ c 2.2 Enhanced Combustion Venting Measures in Homes v2008:\n\n 1) There must be exterior air ducted to the fireplace (per IRC SECTION R1006 EXTERIOR AIR SUPPLY, details provided below). Note that we will not follow the provision in the IRC exempting exterior air supply if ‘the room is mechanically ventilated and controlled so that the indoor pressure is neutral or positive’. \n AND 2) The flue must be mechanically powered, OR the space around the fireplace must pass the BPI or RESNET back draft potential test.\n\n SECTION R1006 EXTERIOR AIR SUPPLY \n R1006.1 Exterior air. \n Factory-built or masonry fireplaces covered in this chapter shall be equipped with an exterior air supply to assure proper fuel combustion unless the room is mechanically ventilated and controlled so that the indoor pressure is neutral or positive. \n\n R1006.1.1 Factory-built fireplaces. \n Exterior combustion air ducts for factory-built fireplaces shall be a listed component of the fireplace and shall be installed according to the fireplace manufacturer’s instructions. \n\n R1006.1.2 Masonry fireplaces. \n Listed combustion air ducts for masonry fireplaces shall be installed according to the terms of their listing and the manufacturer’s instructions.\n\n R1006.2 Exterior air intake. \n The exterior air intake shall be capable of supplying all combustion air from the exterior of the dwelling or from spaces within the dwelling ventilated with outside air such as nonmechanically ventilated crawl or attic spaces. The exterior air intake shall not be located within the garage or basement of the dwelling nor shall the air intake be located at an elevation higher than the firebox. The exterior air intake shall be covered with a corrosion-resistant screen of 1/4-inch (6 mm) mesh. \n\n R1006.3 Clearance. \n Unlisted combustion air ducts shall be installed with a minimum 1-inch (25 mm) clearance to combustibles for all parts of the duct within 5 feet (1524 mm) of the duct outlet.\n\n R1006.4 Passageway. \n The combustion air passageway shall be a minimum of 6 square inches (3870 mm2) and not more than 55 square inches (0.035 m2), except that combustion air\n\n R1006.5 Outlet. \n Locating the exterior air outlet in the back or sides of the firebox chamber or within 24 inches (610 mm) of the firebox opening on or near the floor is permitted. The outlet shall be closable and designed to prevent burning material from dropping into concealed combustible spaces.\n" "None" "None" "X"