Top Hybrid Water Heater Brands for Efficient Energy Use

In recent years, the demand for energy-efficient appliances has seen a significant surge, particularly with hybrid water heaters leading the charge in sustainable home heating solutions. These innovative systems combine the high efficiency of heat pump technology with traditional electric heating to deliver seamless hot water delivery while minimizing energy use. Brands like Rheem, A.O. Smith, and Stiebel Eltron have become household names, renowned for their cutting-edge designs, reliability, and energy-saving technology. To explore a comprehensive list of the best hybrid water heater brands that could enhance your home's efficiency, continue reading the sections below.

Illustration of hybrid water heater

Best brands of hybrid water heater in 2025

Rheem

Rheem is a leading producer of hybrid water heaters, with a strong presence in the U.S. market, where they, along with A. O. Smith, supply over 70% of the overall water heater market. Rheem's hybrid water heaters, such as the Rheem Hybrid, feature advanced technologies like heat pump efficiency, achieving a uniform energy factor of 3.55, and are EnergyStar compliant. The U.S. hybrid water heater market, dominated by Rheem and A. O. Smith, has seen significant growth, with sales doubling over the last five years, from 52,000 units in 2016 to 104,000 in 2020. Rheem's products are widely available through major retailers like Home Depot and Menards, with their manufacturing plants in Mexico also contributing to their strong market position. For more information, you can visit their FAQs page.

A.O. Smith

A. O. Smith is a leading manufacturer of hybrid water heaters, boasting one of the broadest product lines with highly efficient models such as the Voltex family, which includes the only 120-volt unit available nationwide. The company holds a significant market share, supplying over 70% of the overall U.S. water heater market in 2020, and its Energy Star-certified units have driven growth, with U.S. HPWH market sales doubling from 52,000 units in 2016 to 104,000 in 2020. A. O. Smith's products feature advanced technologies like iCOMM connectivity and integrated leak detection, enhancing efficiency and user convenience. The company's strong retail presence is supported by its sole supply agreements with major retailers like Lowe's, True Value, and Do It Best. A. O. Smith's commitment to energy efficiency and innovation has made it a trusted brand in the industry. For more details on their offerings, visit their heat pump water heaters page.

Bradford White

Bradford White is a leading manufacturer of hybrid water heaters, known for its high-quality and energy-efficient products. The company, with over 135 years of experience, has seen significant growth in the hybrid water heater market, with the U.S. HPWH market doubling in size over the last five years, from 52,000 units in 2016 to 104,000 in 2020. Bradford White's hybrid water heaters, such as the Eco-Defender models, emit 75 percent less NOx emissions than standard models, highlighting their commitment to environmental sustainability. The company's products are built to last, with features like the Defender Safety System and Microban(r) antimicrobial technology, ensuring safe and reliable operation. As the third-largest supplier to the overall U.S. water heater market, Bradford White continues to innovate and meet consumer demands for efficient and safe water heating solutions.

Stiebel Eltron

Stiebel Eltron is a leading producer of hybrid water heaters, renowned for its cutting-edge German engineering and high-performance designs. The company's heat pump water heaters are known for their energy efficiency, with some models achieving up to 99% energy conversion, minimizing waste and reducing running costs. In 2022, the Asia Pacific market, where Stiebel Eltron has a significant presence, accounted for 43.07% of the global heat pump water heater market share, valued at USD 0.84 billion. Stiebel Eltron's products are also recognized for their advanced features, such as variable speed compressor technology and smart controls, which enhance efficiency and user convenience. The company's commitment to eco-friendly solutions aligns with the growing demand for energy-efficient and sustainable water heating systems.

Rinnai

Rinnai is a leading producer of hybrid water heaters, renowned for its innovative and environmentally friendly products. The company's ECO ONE X5 hybrid water heater with heating system received the Director-General Prize of the Agency of Natural Resources and Energy in 2022, highlighting its commitment to quality and sustainability. Rinnai aims to contribute to CO2 emission reduction, targeting a reduction of 7 million tons through its products. The company has also expanded its production in the U.S. market and focuses on developing 100% hydrogen combustion technology for residential water heaters. With a 100-year commitment to quality and industry-leading warranties, Rinnai stands out in the market. For more information, visit Rinnai's website.

Westinghouse

Westinghouse, a renowned brand in the water heater industry, is particularly notable for its innovative hybrid water heaters, which combine the efficiency of heat pump technology with traditional water heating methods. These hybrid water heaters have seen significant growth, with the U.S. market for heat pump water heaters (HPWHs) doubling in size over the last five years, from 52,000 units in 2016 to 104,000 in 2020, though they still account for only about 2% of the overall water heater market. Westinghouse's offerings in this segment are praised for their energy efficiency, lower operational costs, and environmental benefits. The brand's products cater to both residential and commercial needs, with capacities ranging from 30 to 100 liters, which dominate the market with a significant revenue share. Westinghouse's commitment to technological advancements and customer preferences for eco-friendly solutions positions it as a leading producer in the hybrid water heater market.

Bosch

Bosch stands out as a leading producer of hybrid water heaters, particularly with its GreenTronic 7000 T model, which integrates efficient heat pump technology into an electric storage water heater, making it 3-4 times more efficient than traditional electric water heaters. This model is available in 50 and 80-gallon capacities and is eligible for a federal tax credit, enhancing its appeal for homeowners seeking sustainable solutions. Launched in March 2024, this innovation reflects Bosch's commitment to energy efficiency and sustainability. The global electric water heater market, which includes Bosch's offerings, is expected to expand at a CAGR of 8.5% from 2024 to 2030. Bosch's hybrid electric water heaters are designed to meet all hot water needs while reducing energy costs. For more details, visit Bosch's hybrid electric water heaters page.

Navien

Navien is a leading brand in the tankless water heater market, renowned for its innovative and energy-efficient products. Founded in 1978, Navien has been at the forefront of technological advancements, including the development of Asia's first condensing gas boiler and pioneering condensing tankless water heaters. Their products, such as the NPE-180S2 and 240A2, offer high efficiency, low emissions, and advanced features like the EZNav(tm) software. Navien's focus on condensing technology has made them the global standard in ultra-efficient water heating, with a strong presence in North America and Europe. The company's commitment to green technology and customer comfort has solidified its position as a market leader. Learn more about Navien's innovations and product offerings.

General Electric

General Electric (GE) is a leading producer of hybrid water heaters, particularly with its innovative GeoSpring™ line, which exceeds U.S. Department of Energy's energy efficiency standards. The 80-gallon GeoSpring model, introduced in 2015, is 67% more efficient than standard electric water heaters and can save households up to $500 annually. Despite discontinuing the GeoSpring production in 2016 due to low demand, GE's hybrid water heaters were notable for their advanced heat pump technology and features like vacation mode and smart controls. These heaters operated efficiently even in colder temperatures and provided significant energy savings. However, other manufacturers have continued to advance in this competitive market segment.

State Water Heaters

State Water Heaters is a leading producer of hybrid water heaters, known for their energy-efficient and cost-effective solutions. Their Premier(r) AL Smart Hybrid Electric heat pump water heater features a 66-gallon tank and a Uniform Energy Factor (UEF) of 3.70, making it one of the most efficient water heaters on the market. This model can save homeowners almost $600 per year on utility bills and qualifies for up to $2,000 in federal tax credits. The U.S. market for heat pump water heaters, including those from State Water Heaters, has seen significant growth, with sales doubling from 2016 to 2020 and a 26% increase in 2022. State Water Heaters' products are highly regarded for their innovative features, such as leak detection and optional automatic water shutoff.