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Circulator Pumps

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

  • Circulator Pumps

Circulator Pumps

At a Glance

Status 
active
Fuel type 
dual fuel
Sector 
commercial, residential
Applications 
pumps
Sunset date 
Jun 30, 2023

Typical applications for circulator pumps are hydronic heating or cooling and potable hot water recirculation to provide hot water on demand. Ciculator pumps are small, single-stage, overhung, rotodynamic pumps supported in-line by system piping. Of the main applications for these pumps, hydronic heating is the largest, both in residential and commercial buildings. These pumps present a high opportunity for savings due to improved motor efficiency and motor speed controls in these applications. Circulators used in domestic hot water applications keep hot water pipes hot to reduce wait time at the end use. The main opportunity for energy savings here is with run-hour, on/off controls. 

Workbook

Latest Version

Circulator Pumps v3.0

File Circulator Pumps v3.0
Updated with 2021 Plan cost effectiveness methodology
Date 
Apr 18, 2022
Version number 
3.0

Past Versions

version date document
2.3
Sep 27, 2021
File Circulator Pumps 2.3
Reran through ProCost 3.1.05 to correct for minor error
2.2
Aug 27, 2021
File Circulator Pumps v2.2
An error was corrected resulting in increases to the savings and costs for motors 2.5 HP to 5 HP.
2.1
Aug 10, 2020
File Circulator Pumps v2.1
QC complete
2.0
Jun 23, 2020
File Circulator Pumps v2.0
Measure workbook approved at the June 2020 RTF Meeting. Currently undergoing QC.
1.3
Apr 09, 2019
File Circulator Pumps v1.3
Error found and corrected on the Water Heating Energy sheet. Results in only a minor change to savings.
1.2
Sep 26, 2017
File Circulator Pumps v1.2
QC review complete.
1.1
Mar 22, 2017
File ComResCirculatorPumps_1_1.xlsm
Measure workbook approved at the March 2017 RTF Meeting. Original savings workbook. Currently undergoing QC.
Supporting Documents
File Circulator Pumps Research Strategy

Decisions

Expand All Decisions

Latest decision

Decision details

Decided 
June 23, 2020
RTF Meeting: June 23, 2020

Approved Measure Changes

Decision Details

Approve updates to Circulator Pumps UES measure as presented. Keep the Category at Planning, Keep the Status at Active, Set the sunset date to June 30, 2023.

Decided 
March 24, 2020
RTF Meeting: March 24, 2020

Extend Sunset Date

Decision Details

Extend the sunset date of the Circulator Pumps UES measure to July 2020.

Decided 
March 21, 2017
RTF Meeting: March 21, 2017

Approve new measure analysis

Decision Details

Adopt the measure specification, savings, costs, life, and research strategy for the Circulators UES measure;

  • Set Status as Active
  • Set Category as Planning
  • Set Sunset Date to March 31, 2020
  • Update costs per Sarah Widder's latest estimate
  • Update Research Strategy to include questions about user satisfaction and to require collection of hot water consumption (gallons).

Small/rural Checklist

Latest Version

March 2017 Circulator Pumps Small/Rural Checklist v1

File March 2017 Circulator Pumps Small/Rural Checklist v1
Date 
Mar 22, 2017

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