Skip to Content
Home

Commercial Unitary Heat Pump Water Heaters

The RTF is a technical advisory committee to the Northwest Power and Conservation Council established in 1999 to develop standards to verify and evaluate energy efficiency savings

NWCouncil.org Contact
Calendar
Work products
UES Measures Standard protocols list Demand Response Technologies Supporting Documents Propose a measure or standard protocol Proposed measures and status Whole Building Efforts
Subcommittees
  • Agricultural Irrigation
  • Air Source Heat Pumps
  • Commercial HVAC
  • Compressed Air
  • Connected Thermostats
  • Demand Response
  • Ductless Heat Pumps
  • Duct Sealing
  • Guidelines
  • Heat Pump Water Heaters
  • Implementers Group
  • Market Analysis
  • Natural Gas Subcommittee
  • New Homes Standard Protocol
  • Non-Residential Lighting
  • Operations
  • Pump Systems
  • Research and Evaluation
  • Residential Behavior
  • Residential Lighting
  • RTF Policy Advisory Committee
  • Small and Rural Utilities
  • Statistical Methods
  • Whole Building Subcommittee
Home Calendar News and updates Decisions Guidelines

About the RTF

  • RTF Membership – 2022-2024
  • Work plan and budget
  • Request for proposals
  • Charter and bylaws
  • Conflict of interest policy
  • RTF Policy Advisory Committee
  • Contacts
  • Conservation achievements

Work Products

UES Measures Standard protocols list Demand Response Technologies Supporting Documents Propose a measure or standard protocol Proposed measures and status Whole Building Efforts

Subcommittees

  • Agricultural Irrigation
  • Air Source Heat Pumps
  • Commercial HVAC
  • Compressed Air
  • Connected Thermostats
  • Demand Response
  • Ductless Heat Pumps
  • Duct Sealing
  • Guidelines
  • Heat Pump Water Heaters
  • Implementers Group
  • Market Analysis
  • Natural Gas Subcommittee
  • New Homes Standard Protocol
  • Non-Residential Lighting
  • Operations
  • Pump Systems
  • Research and Evaluation
  • Residential Behavior
  • Residential Lighting
  • RTF Policy Advisory Committee
  • Small and Rural Utilities
  • Statistical Methods
  • Whole Building Subcommittee
Close Navigation
  1. /

UES Measure

  • Commercial Unitary Heat Pump Water Heaters

Commercial Unitary Heat Pump Water Heaters

At a Glance

Status 
active
Fuel type 
electric
Sector 
commercial
Applications 
water heating
Sunset date 
Mar 31, 2025

This measure requires installing an ENERGY STAR-certified HPWH with an integrated tank to serve a commercial space. It applies to both existing buildings and new construction, provided a HPWH is not mandated by local code. In addition to efficiency requirements, the ENERGY STAR specification is restricted to units with rated maximum power draw of at least 12 kW and tank volume of at most 140 gallons.

The RTF has separate UES measures for residential water heaters in commercial applications and for unitary commercial water heaters with plans to develop a measure for larger commercial split/built-up systems in the future. In all cases, there is savings uncertainty due to variations in water heater technology, water usage patterns, distribution losses, and other factors.

Workbook

Latest Version

Commercial Unitary HPWH v1.1

File Commercial Unitary HPWH v1.1
Approved at the March 2022 RTF meeting. QC complete.
Date 
Apr 29, 2022
Version number 
1.1

Past Versions

version date document
1.0
Mar 25, 2022
File Commercial Unitary HPWH v1.0
Approved at the March 2022 RTF meeting. Currently undergoing QC.
Supporting Documents
File Commercial Unitary HPWH Research Strategy (March2022)
Mar 25, 2022
Adopted at the March 2022 RTF Meeting with v1.0 of the measure. Document describes research needed to support proven savings for commercial unitary HPWHs.

Decisions

Expand All Decisions

Latest decision

Decision details

Decided 
March 22, 2022
RTF Meeting: March 22-23, 2022

Adopt New Measure

Decision Details

Adopt the Unitary Commercial HPWH UES measure:

  • Set recirculation hours to 16 hrs/day for all building types;
  • Set pipe insulation to R-4 for recirculation loops;
  • Set the Measure Category to Planning;
  • Set the Measure Status to Active; and
  • Set the Sunset Date to March 31, 2025.

AN ADVISORY COMMITTEE OF:

Northwest Power & Conservation Council

ARCHIVES  •  ELCAP  •  CONSERVATION ACHIEVEMENTS

© 2022 Regional Technical Forum. All Rights Reserved.