Domestic Hot Water

Related Measures

• Enhanced Air-To-Water Heat Pumps (AWHPs)

  Measure Overview

  This proposal seeks to introduce mandatory and prescriptive requirements in Section 120.5 and 140.4, respectively for AWHP. This measure includes three proposals. Improve quality installation and operation and reduce the gap between manufactured…

• Unitary HP/ER Heaters in Systems with Recirculation

  Measure Overview

  This measure would add prescriptive requirements to Title 24 Part 6 to ensure that unitary Heat Pump / Electric Resistance (HP/ER) hybrid water heaters installed in central Heat Pump Water Heater (HPWH)…

• Return-to-Primary Configuration

  Measure Overview

  This measure proposes to create a prescriptive pathway to require return-to-primary configuration for split-system Heat Pump Water Heater (HPWH) systems in nonresidential (NR) buildings. This proposal would include an alternative pathway for products…

• Circulator Pump Controls

  Measure Overview

  This measure would prescriptively require circulator pumps serving central water heating systems in nonresidential buildings to have advanced digital pump controls. Applicable controls would include internal or external controls that reduce energy…

• Nonresidential HPWH Ventilation Clean Up

  Measure Overview

  This measure would simplify the four compliance pathways in the 2025 code to make HPWH…