AWHI teamed up with Tacoma Power, Tacoma Housing Authority, and Ecotope to create two factsheets and a case study that highlight best practices in Central heat pump water heater (HPWH) design and installation. These resources explore the process of designing, installing and commissioning two Central HPWHs at a large affordable housing complex in the Pacific Northwest.
Download the case study and flyer using the buttons below.
Thursday, December 18 - 9:00 AM
Join us for a live Manufacturer Interview with Cala Heat Pump Water Heaters on the AWHI’s Heat Pumps & Cardigans series, where we’ll dive into Cala’s next-generation HPWH—an intelligent, water heater that seeks to adapt to hot water usage, energy pricing, solar production, and even weather. We’ll explore how this startup is bringing their HPWH to market and what we can expect from them in 2026. Bring your questions for a live Q&A with the Cala team and get an inside look at an innovative HPWH entering the market.
Thursday, December 11 - 10 AM Pacific
In our annual, end of year, All Stakeholders Meeting we will be looking at the state of the heat pump water heater market and present our “year in review” on the major technology, policy and market trends from this year. Join us Thursday, December 11 at 10 AM Pacific with the live meeting link below.
CalMTA received approval from CPUC and issued its first market transformation initiative request for proposal for room heat pumps. With the 5-0 decision from the California Public Utilities Commission (CPUC) to fund the first market transformation initiatives (MTI) in California, CalMTA been moving forward with an announcement and a request for proposals (RFP) for the Room Heat Pumps MTI. The Induction Cooking MTI, which was conditionally approved, will move to implementation later in 2026
CalNEXT study on split heat pump water heaters - VEIC released its final report for the CalNEXT Multifamily Split-System Heat Pump Water Heater Market Study. The study examines the emerging role of split-system heat pump water heaters (HPWHs) as a solution for space-constrained multifamily buildings in California. Read the report here
CalNEXT study on HPWH paired with existing gas water heater - TRC and Frontier Energy recently completed a CalNext field demonstration project that explored the efficacy of installing a heat pump water heater in-series with an existing tanked gas water heater in a restaurant setting. Read the report here.
As part of our manufacturer interview with Navien in November, we included an image that showed “new” HPWH manufacturers that have come to market with HPWHs over the last several years. Some of our readers suggested that we show all major HPWH manufacturers and we updated the article accordingly. We’ve included both relevant images here as well and will be updating the AWHI website in early 2026 up-to-date information on both residential and commercial HPWHs.
AWHI’s working groups are always full of incredible content on advanced water heating. Here’s a little bit from our November AWHI presentations:
Southern California Edison’s equitable water heater program has installed over 3,000 HPWH in 2025 alone in low income house holds. Watch their Residential Working Group presentation here.
Hilltop Housing, Tacoma installed two central HPWH systems to serve two affordable housing buildings and over 240 units. Watch the Equity Working Group presentation here.
Carbon Zero Buildings is installing Central HPWHs with innovative designs and at lower price points in California. Watch their presentation at the Commercial AWHI Working Group here.
Palmetto talks about offering leasing and financing products for HPWHs. Watch their presentation at the Residential Working Group Here.
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