2016 Hot Water Forum

2016 Hot Water Forum

Hilton Portland & Executive Tower
Portland, OR
February 21, 2016 to February 23, 2016

Program | Presentations | Past HWF Conferences

Hot Water Forum Overview

The ACEEE Hot Water Forum (HWF) is the premier technical conference dedicated to making water hot, distributing it with low losses, and using water with efficient fixtures and practices. Since 2008, the ACEEE HWF has brought together experts and newcomers from manufacturing; distribution (plumbing); electricity, gas and water utilities; government; and the research community's opportunities to learn from each other and build momentum for market transformation. Since then, the conference has emphasized both the technical efficiency potential and the policy/program implications of service hot water technology and practices, and how people use hot water. Each year, the forum features more than 32 sessions covering cutting-edge developments in these areas.

HWF participants meet, share ideas, and learn from each other's latest efforts on research, new water heating technologies, structured plumbing approaches, new demand-reduction devices (e.g., fixtures and water-efficient appliances), and programs for stimulating market uptake of new approaches. The HWF presentation program, developed each year by a dedicated steering committee, is complemented by ample time for networking with fellow attendees.

Likely Participants Include: Equipment and component manufacturers; water, gas, and electric utilities; local, state, and federal agency personnel; energy efficiency program planners, operators, and evaluators; policymakers; NGOs; and consultants.

If you have any questions about your participation at the 2016 Hot Water Forum, please email jseas@aceee.org.




Monday, February 22 | Tuesday, February 23

Monday, February 22

Welcome, Introductions, and Plenary Session

Rachel Cluett, American Council for an Energy-Efficient Economy


Plenary Session: Updates since the 2015 Federal Water Heater Standards Took Effect

Moderator: Harvey Sachs, American Council for an Energy-Efficient Economy

Ashley Armstrong, US Department of Energy

Frank Stanonik, Air-Conditioning, Heating, & Refrigeration Institute

George Chapman, Consortium for Energy Efficiency

Robert Mader, Contractor Magazine


Session 1A: Grid-Enabled, Grid-Responsive, and Grid-Interactive Electric Thermal Storage (ETS) Water Heating (GIWH): How We Got Here and Where We’re Going!

Keith Dennis, National Rural Electric Cooperative Association, Utility Industry Policy Update: How We Got Here!

Robin Roy, Natural Resources Defense Council, Efficiency Standards, Environmental Performance, and Water Heating Technology

Paul Steffes, Steffes Corporation, Grid-Interactive Loads: Pursuing Market Acceptance through Codes and Standards

Steven Koep, Vaughn Thermal Corporation, Co-Chair – PLMA GIWH Interest GroupFrom Legacy Systems to GIWH and Community Storage!


Session 1B: CO2 Heat Pump Water Heating Advancement in the US Market

Moderator: Omar Abdelaziz, Oak Ridge National Laboratory

Troy Davis, Mayekawa, CO2 for Larger Commercial Applications

John Miles, Sanden, Eco Cute for the US Market

Kyle Gluesenkamp, Oak Ridge National Laboratory, Affordable ENERGY STAR® CO2 HPWH for the US Market

Ken Eklund, Washington State University, CO2 Heat Pump Water Heater Field Tests: What We Know and What We Wish We Knew


Session 1C: Heat Pump Water Heater Marketing: How to Influence the Planners and the Procrastinators

Discussion Panelists:
Becca Yates, Northwest Energy Efficiency Alliance      

Steve Ryan, US Environmental Protection Agency


Session 1D: What Is the Future for Solar Thermal Water Heating?

Bill Healy, National Institute of Standards and Technology, Solar Thermal vs. Photovoltaic Water Heating

Rob Del Mar, Oregon Department of Energy, Residential Solar Water Heating Trends and Financial Incentives in Oregon

Jeff Curry, Lakeland Electric, Solar Thermal in a Changing Utility Landscape: Lessons from Florida

Loren Lutzenhiser, Portland State University, Understanding and Improving Solar Thermal Water Heating Effectiveness for California Households

Larry Weingarten, Field Results from a New Solar Thermal System


Session 2A: Grid Interactive Water Heating (GIWH) Research

Mark Dyson, Rocky Mountain Institute, System Level Value of GIWH

Jim Lazar, Regulatory Assistance Project, GIWH for the Multi-family Residential Sector

Ken Glaser, Connexus Energy, and Eric LeBow, Power Over Time, Demonstrating GIWH as Part of an Enhanced Load Control Strategy


Session 2B: Field Testing of Integrated Space Conditioning and Water Heating Systems

Tim Kingston, Gas Technology Institute, Integrated Forced-Air System: Field Research on Combis with Condensing Gas Water Heaters and Electric Heat Pumps

Hillary Vadnal, Gas Technology Institute, Findings from Three Field Studies of Rheem’s H2AC Condenser Waste Heat Recover System at Full Service Restaurants

Paul Doppel, Mitsubishi, Development of the Mitsubishi Dual Purpose (Space Conditioning and Heating Water) Heat Pump


Session 2C: Heat Pump Water Heaters and the Northwest Market: Where Have We Been and Where Are We Going?

Moderator: Aaron Winer, CLEAResult

Jill Reynolds, Northwest Energy Efficiency Alliance, Energy Efficiency Program Perspective

Manufacturer Perspective: Francois Lebrasseur, General Electric

Utility Perspective: Roch Naleway, PG&E


Session 2D: Modeling What We Know about Hot Water Use

Richard Buswell, Loughborough University, HOTHOUSE: Hot Water Provision in Homes - Consumption, Storage, and Lifestyle

Sean Armstrong, Redwood Energy, Modeling Hot Water Use in Single Family Buildings

Bruce Wilcox and Jim Lutz, Revising Hot Water Calculations in Title 24 in California


Session 3A: Grid Interactive Water Heating Market Development: New Business Models for Scaling the GIWH Market

Dan Flohr, Sequentric, Scaling a GIWH Rental Business Model

Conrad Eustis, Portland General Electric, Standardizing GIWH and Rolling Out at Scale

Steven Koep, Vaughn Thermal Corporation, Water Heater Leasing: The New/Old Business Model for GIWH


Session 3B: Gas-Fired Heat Pump Water Heaters

Mike Garrabrant, Stone Mountain Technologies, Inc., and Patrick Geoghegan, Oak Ridge National Laboratory, Commercial Heat Pump Water Heaters                         

Saeed Moghaddam, University of Florida, Membrane Based Heat Pump Water Heaters

Moonis Ally, Oak Ridge National Laboratory, Issues Related to Development of a Residential Adsorption Heat Pump Water Heater

Paul Glanville, Gas Technology Institute, Field Evaluation of Pre-Commercial Residential Gas Heat Pump Water Heaters


Session 3C: Pipe Sizing

Gary Klein, Gary Klein and Associates, How Small Can We Go: Pressure Drop versus Flow Rate for ⅜ and ½ inch Nominal Tubing

Carl Hiller, Applied Energy Technology, Peak Design Flow Rates in Commercial Potable Hot Water Systems

Toritseju Omaghomi, University of Cincinnati, Peak Water Demand Study: Development of Metrics and Method for Estimating Design Flows in Buildings


Session 3D: Large Central Domestic Hot Water (DHW) Applications

Robert Cooley and Dennis Ensminger, EDC Technologies, Inc., Controlling and Monitoring Heat Pump Hot Water Systems Utilized in Large Central Applications (primarily in Hawaii)

Larry Acker, ACT, Inc. D’MAND Systems, Smart Ways to Control Hot Water Distribution in New and Existing Multifamily/Commercial Buildings; including a Case Study from Southern California Gas Company’s On Demand Efficiency Program


Tuesday, February 23

Session 4A: From Grid Responsive to Grid Interactive: An Evolving Perspective

Moderator: Steven Koep, Vaughn Thermal Corp.

Discussion Panelists:      
Keith Dennis, Natural Rural Electric Cooperative Association

Steve Rosenstock, Edison Electric Institute

Paul Steffes, Steffes Corporation

Eric LeBow, Power Over Time

Dan Flohr, Sequentric

Joe Childs, Eaton

Steven Koep, Vaughn Thermal Corporation


Session 4B: Heating Water with Integrated Heat Pumps

Bo Shen, Oak Ridge National Laboratory, Modeling and Analysis of Integrated Heat Pump Systems 

Jeff Munk, Moonis Ally and Van Baxter, Oak Ridge National Laboratory, Air-Source Integrated Heat Pump Test Results

Shawn Hern, ClimateMaster, Inc., and Van Baxter, Oak Ridge National Laboratory,  Ground-Source Integrated Heat Pumps: Field Test Results                                        

Ayyoub Momen and Ed Vineyard, Oak Ridge National Laboratory, Isaac Mahderekal, IntelliChoice, Water Heating via Gas Engine Driven Heat Pumps


Session 4C: Midstream and Upstream Utility Programs

George Chapman, Consortium for Energy Efficiency, Survey of Heat Pump Water Heater Programs

Marshall Johnson, Energy Trust of Oregon, Efforts to Shift from Traditional Rebate Programs to Upstream Approaches

Jennifer Parsons, The United Illuminating Company, Upstream Hot Water Program at the Connecticut Utilities


Session 4D: Changes to Codes and Standards

Discussion Panelists: Jim Lutz, and Gary Klein, Gary Klein and Associates


Session 5A: Grid-Responsive Water Heaters

Jeffrey Munk, Oak Ridge National Laboratory, Field Test Results of Grid-Responsive HPWH

Samuel DuPlessis, General Electric, Development of Grid-Enabled Units

Bill Hosken, A.O. Smith, Grid-Connected Electric Resistive and HPWHs

Dennis Stiles, Pacific Northwest National Laboratory, EERE Tech to Market: Grid Responsive HPWHs


Session 5C: Heat Pump Water Heaters and the Northern Climate Specification Update

Discussion Panelists:  
Geoff Wickes, Northwest Energy Efficiency Alliance                                       

Ben Larson, Ecotope                                                                               

Christian Douglass, Ptarmigan Research


Session 5D: Distribution in Large Buildings

Ben Schoenbauer, Minnesota Center for Energy and Environment, Demand Control Recirculation in Commercial and Hotel Properties

Gary Klein, Gary Klein and Associates, Inc., Controls for Circulation Systems in Large Buildings

Gabriel Ayala, Enovative Group, Energy Research on Improving the Balancing and Mixing of Domestic Hot Water


Session 6A: US Department of Energy’s Working Group on Adopting a Standard Communications Port for Water Heaters

Moderator: Brian Spak, Portland General Electric

Discussion Panelists: 
Robin Roy, Natural Resources Defense Council

Bill Hosken, A.O. Smith

Chris Granda, Appliance Standards Awareness Project



Session 6B: Distribution in Residential Buildings

Farhad Farahmand, TRC Solutions, Single Family Compact Domestic Hot Water Distribution Design

Peter Grant, Davis Energy Group, Drain Water Heat Recovery Research

Eddie Huestis, Pacific Gas & Electric Applied Technology Services, Hot Water Research Facility at PG&E

Troy Sherman, Evolve Technologies, LLC, Structural Waste versus Behavioral Waste


Session 6C: What’s Cooking? Using a Targeted Approach to Selling ENERGY STAR® Certified Commercial Water Heaters

Moderator: Mark Michalski, Cadmus

Discussion Panelists:  

Casey Hollabaugh and Jeff Woodard, Hollabaugh & Associates


Session 6D: Innovating Storage Water Heaters 

Holly Meyer, Northwest Natural, A Utility Case for Continued Innovation in Storage Water Heating

Troy Trant, Rheem Manufacturing, NAECA III Generation Water Heaters and Their Performance Measurement

Cory Weiss, Field Controls Inc. and Dave Kalensky, Gas Technology Institute, Emerging Technology: Unplugged Smart Flue Damper


Session 7A: Plumbing Pathogens

Carl Hiller, Applied Energy Technology, Pathogens in Hot Water Systems: Where Are They, How Do They Get There, and How Do We Get Rid of Them?

William Rhoads, Virginia Tech, Challenges Associated with Pathogen Control Considerate of the Water-Energy News


Session 7B: Field and Lab Monitoring in Commercial Kitchens

Amin Delagah, Fisher-Nickel, Inc., Results from 18 Field Monitoring Projects on Rack and Flight Conveyor Dishwashers

Don Fisher, Fisher Consultants, Updates from an In-Depth Hot Water System Replacement Project in a Full Service Restaurant

Eddie Huestis, Pacific Gas & Electric Applied Technology Services, Recent Testing and Added Features of the 2nd Generation Hot Water System Testing Laboratory at PG&E


Session 7C: Application of the CTA 2045 Standard for Grid Interactive Water Heaters

Discussion Panelists:  

Conrad Eustis, Portland General Electric

Josh Keeling, Portland General Electric

Chris Kotting, USNAP Alliance


Session 7D: Showers: Recycling or Capturing Waste Heat - Which is the More Efficient Option?

Discussion Panelists:  

Kaity Tang and James Domanski, CLEAResult

Rick Caruso, Swing Green

David Epstein, Orbital Systems