Record No: CB 120239    Version: Council Bill No: CB 120239
Type: Ordinance (Ord) Status: Passed
Current Controlling Legislative Body City Clerk
On agenda: 12/13/2021
Ordinance No: Ord 126508
Title: AN ORDINANCE relating to Seattle's construction codes; amending Sections C404.2.3, C404.2.3.1, C406.8, C406.8.1, C503.4.6, and C503.5 and Table 406.1 of the 2018 Seattle Energy Code, adopted by Ordinance 126279.
Sponsors: Andrew Lewis, Dan Strauss
Supporting documents: 1. Summary and Fiscal Note, 2. SDCI - SEPA Note to File 2018 Energy Code Amendment (2021), 3. Central Staff Memo, 4. Presentation (12/3/21), 5. Amendment 1, 6. Signed Ordinance 126508, 7. Affidavit of Publication
CITY OF SEATTLE
ORDINANCE __________________
COUNCIL BILL __________________
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AN ORDINANCE relating to Seattle's construction codes; amending Sections C404.2.3, C404.2.3.1, C406.8, C406.8.1, C503.4.6, and C503.5 and Table 406.1 of the 2018 Seattle Energy Code, adopted by Ordinance 126279.
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BE IT ORDAINED BY THE CITY OF SEATTLE AS FOLLOWS:
Section 1. Section C404.2.3 of the Seattle Energy Code, adopted by Ordinance 126279, is amended as follows:
C404.2.3 ((Group R-1 and R-2 occupancies with central service)) Service water heating ((systems)) system type. In buildings with central service water heating systems serving four or more Group R-1 or R-2 dwelling or sleeping units, and in any other building that has a heated water circulation system or a combined water heating capacity greater than 15 kW (51,195 Btu/h) under a single permit, the primary service water heating equipment shall not use fossil fuel combustion or electric resistance. Service hot water shall be provided by an air-source heat pump water heating (HPWH) system meeting the requirements of this section, or a ground-source heat pump water heating (GSHP) system. Supplemental service water heating equipment is permitted to use electric resistance in compliance with Section C404.2.3.4.
SDCI Informative Note: A "central service water heating system" in this context is a system that serves more than one dwelling unit, sleeping unit, tenant space, or building area. It can consist of a single water heating system or multiple systems each serving individual floors, risers or building areas. The term does not apply to an individual water heater serving a single use, such as a restaurant in a food court, a pair of toilet rooms, or an apartment building party room.
Exceptions.
1. Permits applied for prior to January 1, 2022.
2. A service water heating system in a tenant space under a separate permit with a total heating capacity in that tenant space that is no greater than...

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