News

May 18, 2026

Updating CEE Specifications for Water Heating and HVAC: Process, Content, and Purpose

At the Inaugural CEE Spring Industry Partners Meeting held at the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) headquarters in Washington, DC, the Consortium for Energy Efficiency (CEE) convened industry stakeholders to advance the next phase of its specification revision work for water heating and HVAC equipment.

CEE staff opened the meeting by contextualizing the revisions within the organization’s five-year strategic objectives, which include advancing energy efficiency, decarbonizing the built environment, shaping electrification to support grid reliability, scaling load management capabilities, embedding equity as a measurable outcome, and representing consensus interests to government agencies. These goals provide the trajectory for the evolution of CEE specifications levels and why they matter.

Codifying an Annual Specification Revision Process

Beginning in June 2025, CEE launched a revised specification development process with a predictable annual calendar and multiple touchpoints for industry engagement. This established framework is intended to provide greater transparency to all stakeholders, engage industry partners earlier and more often for feedback opportunities, and allot advanced time for manufacturers, program administrators, and other vested parties to prepare for upcoming changes. The in-person meeting in Washington DC was one of several planned stages, complementing written comment periods and Committee reviews before proposals advance to the CEE Board.

Across both water heating and HVAC discussions, three themes consistently surfaced: the need for lower, mass-market tiers to address affordability; the continued importance of advanced tiers that signal where the market is headed; and ongoing uncertainty around the future role of the ENERGY STAR® program, which has historically served as a key reference point for efficiency specifications.

What’s Changing in Water Heating and HVAC

For residential water heating, proposed revisions introduce more differentiated tier structures to better reflect the landscape of product offerings. These include recognizing efficient electric heat pump water heaters without load management capabilities, distinguishing split-system models, and aligning tier levels with forthcoming federal minimum efficiency standards. Parallel updates to gas water heater specifications aim to simplify tiers while preserving the ability for efficiency programs to differentiate higher-performing models.

Commercial water heating discussions focused on system-level performance, clearer scope definitions, and a more intentional approach to load flexibility. Stakeholders raised important considerations around test methods, reporting requirements, and the pace of adoption, underscoring the need for specifications that are both ambitious and practical.

On the HVAC side, proposed updates to residential air source heat pump specifications address affordability, cold-climate performance, and winter peak demand impacts using new metrics derived from existing rated data. Manufacturers were generally supportive of the proposal but raised concerns about the changes in the context of other market expectations. For commercial HVAC, current revisions span small equipment and variable refrigerant flow systems, while large unitary equipment and rooftop units will be in development later this year. Key areas of attention pertained to timing considerations, strategies to best support market adoption, as well as upcoming federal standards and evolving test procedures.

Why It Matters—and a Measured Outlook

CEE specifications play a critical role in aligning voluntary efficiency programs across North America, helping program administrators deliver consistent market signals while giving manufacturers room to innovate. The current revision cycle reflects growing complexity in the market: more product types, more control strategies, and higher expectations for flexibility and performance.

At the same time, discussions at the Inaugural CEE Spring Industry Partners Meeting highlighted the importance of pacing. Stakeholders emphasized the need for clear timelines, coordination with regulatory changes, and caution around requirements, such as load management or new metrics, that depend on still-evolving standards and infrastructure.

As CEE continues to review written comments and refine proposals with an aim to finalize over the summer, the focus remains on consensus-driven specifications that advance efficiency and decarbonization while remaininggrounded in real-world market conditions.