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LEED BD+C: Multifamily Midrise | v2008

Combustion venting in mid-rise buildings

MEQc2 | Possible 0 point

Intent

Minimize the leakage of combustion gases into the occupied space of the building.

Requirements

Prerequisites

2. Basic combustion venting measures. Meet all of the following requirements:

  1. No unvented combustion appliances (e.g. decorative logs) are allowed.
  2. A carbon monoxide (CO) monitor must be installed on each floor of each unit.
  3. All fireplaces and woodstoves must have doors.
  4. Space and water heating equipment that involves combustion must meet one of the following. Space heating systems in buildings located in IECC-2006 climate zone 1 or 2 are exempt.
    1. It must be designed and installed with closed combustion (i.e. sealed supply air and exhaust ducting);
    2. it must be designed and installed with power-vented exhaust; or
    3. it must be located in a detached utility building or open-air facility.

Credits

None.

Table 29. Fireplace and stove combustion-venting requirements
Fireplace or stove Enhanced combustion-venting measures
Better practice (1 point) Best practice (2 points)
None See ‘best practice’. Granted automatically.
Masonry wood-burning fireplace Install masonry heater as defined by American Society for Testing and Materials Standard E-1602 and International Building Code 2112.1. Meet requirement for ‘better practice’, and conduct back-draft potential test to ensure ∆ P ≤ 5 Pascals (see “conducting a back-draft potential test” below).
Factory-built wood-burning fireplace Install equipment listed by approved safety testing facility (e.g., UL, CSA, ETL) that either is EPA qualified or meets the following: equipment with catalytic combustor must emit less than 4.1 g/hr of particulate matter, and equipment without catalytic combustor must emit less than 7.5 g/hr of particulate matter. Meet requirement for better practice, and conduct back-draft potential test to ensure ∆ P ≤ 5 Pascals (see “Conducting a Back-Draft Potential Test,” below).
Woodstove and fireplace insert Install equipment listed by approved safety testing facility that either is EPA qualified certified or meets following requirement: equipment with catalytic combustor must emit less than 4.1 g/hr of particulate matter, and equipment without catalytic combustor must emit less than 7.5 g/hr of particulate matter. Meet requirement for better practice, and conduct back-draft potential test to ensure ∆ P ≤ 5 Pascals (see “conducting a back-draft potential test” below).
Natural gas, propane, or alcohol stove Install equipment listed by approved safety testing facility that is power-vented or direct-vented and has permanently fixed glass front or gasketed door. Meet requirement for better practice, and include electronic (not standing) pilot.
Pellet stove Install equipment that is either EPA certified or listed by approved safety testing facility to have met requirements of ASTM E 1509-04, “Standard Specification for Room Heaters, Pellet Fuel-Burning Type.” Meet requirement for better practice, and include power venting or direct venting.

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