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Advanced Water Heating Specification v8.0
The Advanced Water Heating Specification Version 8.0 (AWHS Version 8.0) will stay up as reference for organizations. The newest version of the AWHS Version 8.1 succeeds the AWHS Version 8.0 and was made available in July 2024. If you have any questions and or insights please contact us. This specification provides guidance to manufacturers and other market actors…
Residential -
Northwest Heat Pump Water Heater Market Progress Evaluation Report #6
The Northwest Energy Efficiency Alliance (NEEA) contracted with NMR Group in early 2021 to conduct its sixth Market Progress Evaluation Report (MPER) for the alliance’s Heat Pump Water Heater (HPWH) program. The findings of this MPER will help inform and refine program interventions in the market. The objectives of the report were to 1) Provide…
Residential -
Non-Powered Damper Gas Storage Water Heater Lab Testing
The Northwest Energy Efficiency Alliance (NEEA) contracted with Gas Technology Institute (GTI) to verify the rated performance of the new ENERGY STAR certified line of natural gas water heater products from A.O. Smith. Rating tests were conducted according to the U.S. Department of Energy (US DOE) “Uniform Test Method for Measuring the Energy Consumption of…
Natural Gas|Residential -
Combi System Field Study
The Northwest Energy Efficiency Alliance (NEEA) contracted with Energy 350 and ILLUME Advising, LLC to conduct field testing to demonstrate performance of combi systems in cold northwest climates and identify potential barriers to market adoption. According to results from this field study, combi systems, also known as combination water and space heating systems, save more…
Natural Gas|Residential -
Laboratory Assessment of Rheem Generation 5 Series Heat Pump Water Heaters
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc., Cascade Engineering Services, Inc. and Larson Energy Research to conduct a laboratory assessment of Rheem’s next generation (Generation 5 or “Gen5”) heat pump water heaters (HPWH). The water heater series consists of two distinct lines: Premium/Plus and Builder, each aimed at different market segments. Each line includes…
Residential -
2019 Alliance Cost Effectiveness Model Review for Heat Pump Water Heaters
The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc., to review the Alliance Cost Effectiveness (ACE) model for the Heat Pump Water Heater program. For the report, Ecotope focused on reviewing NEEA staff’s proposed method to aggregate Residential Building Stock Assessment II data so that the savings forecast reflects new “alternate” savings weights. These…
Residential -
Advanced Water Heating Specification v7.0
The Advanced Water Heating Specification Version 7.0 (AWHS Version 7.0) will stay up as reference for organizations. The newest version of the AWHS Version 8.1 succeeds the AWHS Version 7.0 and the more recent AWHS Version 8.0. If you have any questions and or insights please contact us. This specification provides guidance to manufacturers and other market…
Residential -
Robur Heat Pump Field Trial
The Robur air-source gas absorption heat pump (GAHP) has been identified as an efficient product for water and space heating in buildings in the Northwest. Utilization of a heat pump to heat water allows for a coefficient of performance that exceeds one, however actual heat pump performance varies throughout the year and is dependent on ambient…
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Natural Gas Advanced Water Heating Specification
This specification provides guidance to manufacturers and market actors who are interested in developing products that can provide high levels of consumer satisfaction and energy performance in a range of climates.
Natural Gas -
Gas Tankless Water Heater Combined Research Report
In 2019, the Northwest Energy Efficiency Alliance (NEEA) contracted with ILLUME Advising to examine the successes and challenges of the tankless gas water heater market in the Northwest. The study was conducted in two phases; Phase 1 occurred in early 2019 and focused on an extensive secondary literature review, while Phase 2 began in late…
Natural Gas