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CEE Gas Committee Water Heater Breakout Session. CEE Program Meeting June 14, 2007 . Agenda Review. Update on Tankless Field Test Protocol Update on ENERGY STAR Water Heater Criteria North American Water Heater Initiative Summary of Feedback from Manufacturers

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CEE Gas Committee Water Heater Breakout Session

CEE Program Meeting

June 14, 2007


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Agenda Review

  • Update on Tankless Field Test Protocol

  • Update on ENERGY STAR Water Heater Criteria

  • North American Water Heater Initiative

    • Summary of Feedback from Manufacturers

    • Setting Specification levels


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Tankless Field Test Protocol To Measure Actual Gas Savings

  • Protocol will seek to address the following

    • How does consumer use change with a tankless water heater?

    • Is there a net savings when compared to storage water heaters?

  • Members to implement this experiment in their own territory and report results to CEE


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Scope of Tankless Field Study

  • ASHRAE Technical Committee 6.6 drafting a guide for the technical monitoring of gas, water and electrical consumption

  • CEE Gas and Evaluations Team developing surveys to understand potential gas and water usage behavioral changes

  • We propose to make the protocol available by 3rd quarter so that members can begin testing this winter

  • CEE will facilitate sharing member test results

    • What are your expectations for information sharing?


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CEE Commented on ENERGY STAR Draft Criteria for Water Heaters

  • Supported inclusion of 0.62 EF gas storage water heaters

  • Supported inclusion of emerging technologies with some reservation

    • Warranties necessary

    • Minimum production threshold

    • Consumer and contractor education programs


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CEE Attended ENERGY STAR Stakeholder Meeting Heaters

  • Consensus in the room seemed to form around including a gas storage water heater at 0.65 and electric resistance storage water heater at 0.95

    • Electric tankless water heaters were also discussed but no clear consensus emerged

  • Manufacturers strongly resisted inclusion of warranty requirement, but were open to production thresholds

  • Timeline: 2d round of comments due to DOE by July 13th. Revised criteria available in late July


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Drafting a CEE Gas Water Heating Initiative Heaters

An initiative should contain

  • Summary of existing and proposed technologies

  • Natural gas savings potential

  • Major Players

  • Specifications for storage and tankless gas water heaters

  • Potential Program Approaches

  • Role of CEE

  • ENERGY STAR relationships


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Drafting a CEE Gas Water Heating Initiative Heaters

An initiative should contain

  • Summary of existing and proposed technologies

  • Natural gas savings potential

  • Major Players

  • Specifications for storage and tankless gas water heaters

  • Potential Program Approaches

  • Role of CEE

  • ENERGY STAR relationships


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Drafting a CEE Gas Water Heating Initiative Heaters

An initiative should contain

  • Summary of existing and proposed technologies

  • Natural gas savings potential

  • Major Players

  • Specifications for storage and tankless gas water heaters

  • Potential Program Approaches

  • Role of CEE

  • ENERGY STAR relationships


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Manufacturer Generally Positive About Market Transformation Heaters

  • Most manufacturers believe the advanced non-condensing and condensing units are technically viable, but need to see market assurance

  • The best way to give them market assurance is to prove that consumers are willing to buy more efficient models

  • One manufacturer suggests that advanced non-condensing may be available by 2010, and condensing available by 2011

  • Utility programs could create momentum in bringing advanced technologies to the market


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Advanced Technologies Are Cost Effective Heaters

Benefit-Cost Ratio

Energy Factor


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CEE Performance Specifications HeatersThree Tier Approach


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CEE Performance Specifications HeatersTwo Tier Approach


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What Other Criteria Should Factor Into Performance Specifications?

  • Fuel sources:

    • Include propane as well as natural gas?

    • Electric issue?

  • Commercial and Residential water heaters:

    • Should we broaden the scope to include both?

  • Will include a NOx specification

    • Set to <10 ng/J?


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Questions? Specifications?


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Additional Slides Specifications?


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Manufacturers, Distributors, Big Box Retailers, and Plumber Outreach

  • Incentivize market players to provide maintenance and technology support

  • Influence manufacturer training sessions to encourage plumbers, distributors and others to carry high-efficiency water heaters

  • Advertising to connect retailers, distributors and plumbers to market channels in exchange for carrying more efficient products


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Consumer Education and Awareness Outreach

  • Technology and maintenance support

  • Early replacement programs

  • Water heater rentals

  • In bill ads to promote high-efficiency units and installers who carry them


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ENERGY STAR Outreach & Support Outreach

  • ENERGY STAR could supply a listing of where homeowners can find high-efficiency units in their region

  • Home energy auditors could note the efficiency of the resident’s water heater during home inspections and update owners on high-efficiency options


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