Evaluation of Emerging Water Heating Technologies

This Emerging Technology (ET) study project is proposed to research emerging gas-fired water heating technologies in order to provide actionable recommendations of technologies and gaps for further study by the Statewide Gas Emerging Technologies (GET) program. This project will cover both residential (single-family and multi-family) and small commercial sector water heating systems and will include gas storage water heaters, tankless water heaters, dual-fuel water heaters, combination space & water heating systems, and water heating controls specific to emerging technologies. Research will focus on emerging technologies that are ready for lab or field studies, but other technologies that are more nascent may be included based on feedback from project stakeholders and the Technology Advisory Group (TAG). We will also evaluate incremental barriers as a forward-looking analysis to ensure that the technology is a good fit for CA programs. The research findings will be presented in the ET report template. This project aligns with Goal 1 – Phase 2 of the 2022 GET Annual Research Plan.