Cooling, Equipment, Heating, Water Heating

Bosch Home Comfort Launches Two New Series of Water Source Heat Pumps Designed for Seamless Installation

April 25, 2024

New series includes residential and commercial options for greater efficiency, sustainability

WATERTOWN, MASS., (April 22, 2024) – Bosch Home Comfort, a leading source of high-quality heating, cooling and hot water systems, continues its commitment to high-quality green living with the addition of its latest HVAC solutions: Bosch CL and RL Series Water Source Heat Pumps (WSHP). The new CL and RL Series heat pumps feature a low global warming potential (GWP) refrigerant in accordance with the forthcoming AIM Act, which will go in effect in January 2025.

“We have always had a mindset of solving tomorrow’s challenges today with innovation and comfort at the forefront,” said Ian McIver, product manager at Bosch Home Comfort. “What we have solved for with our Bosch CL and RL Series heat pumps is a need for an HVAC unit design where high-quality and efficiency meet accessibility. Not only will these products make the jobs of techs and installers more seamless, but they will also offer them a deeper product portfolio to meet their customers’ needs and wants.”

Driven by industry-leading heat pump technology, the release of Bosch Home Comfort’s CL and RL Series WSHP reinforces the company’s reputation as a leading manufacturer of highly efficient, electric solution heat pumps across residential and commercial markets.

Bosch CL-255

Adaptability Meets Serviceability with Bosch CL Series Heat Pumps

The single-stage unit Bosch CL Series was designed to fit most commercial replacement projects given its compact cabinet design and its quiet operations to eliminate unwanted noise. The CL Series has a swinging electrical box, a slide out blower on the vertical units, and designated compartments for high and low voltage components. Together, these features not only improve safety conditions for technicians and installers, but also streamline routine services and repairs by offering greater accessibility to the unit’s compressor, air coils and other internal components.

The CL Series is available in vertical or horizontal units with sizes ranging from ½ to 6 tons.

Bosch RL Series a One-Stop-Shop for Retrofits and New Construction

Bosch RL-260

The Bosch RL Series builds off the company’s legacy of unrivaled HVAC technologies in a smaller design that’s easier to service and ideal for any home HVAC upgrade or new construction project. Similar to the commercial model, the Bosch RL Series is equipped with a swinging and divided electrical box for faster and safer maintenance, as well as a slide out blower on the vertical units. Additionally, each RL Series is made with Permanent Split Capacitor Motors (PSC), which use the latest stator technology at a lower cost and a Unit Protection Module (UPM) that interfaces directly with homeowners’ thermostats to provide time delays and protect the unit against freezing of the water coil and evaporated coil.

The Bosch RL Series is available in vertical and horizontal sizes and has a one-year parts limited warranty and a five-year compressor limited warranty.


Whether for residential or commercial uses, Bosch CL and RL Series come equipped with additional features including:

  • Meets or exceeds ASHRAE’s 90.1 efficiency standard
  • Low GWP compliant with R454B refrigerant
  • Quiet operation
  • Water coil and air coil freeze protection
  • Brownout protection
  • Copper or Cupro-nickel water coil
  • Standard filter drier
  • Connection between refrigerant gauges and temperature probes

For more information about Bosch Home Comfort and its product portfolio, or to join the Home Comfort PRO HVAC technician and installer benefits program, visit

About Bosch Home Comfort

Bosch Home Comfort is a leading source of high-quality heating, cooling and hot water systems. The Company offers Bosch tankless, point-of-use and electric water heaters, Bosch and Buderus floor-standing and wall-hung boilers, Bosch and FHP water-source, geothermal and air-source heat pump systems, as well as controls and accessories for every product line. Bosch Home Comfort is committed to reinventing energy efficiency by offering smart products that work together as integrated systems that enhance quality of life in an ultra-efficient and environmentally friendly manner. 

Bosch strives to bring the most energy-efficient and environmentally responsible products to global consumers. In delivering the best products at affordable prices to our markets, Bosch has established multiple collaborations and joint ventures on a global scale to bring the latest technologies to North America. All global manufacturing facilities must adhere to stringent quality standards in order to provide the trusted Bosch brand.

For more information, visit

About Bosch

Having established a presence in North America in 1906, today the Bosch Group employs 42,000 associates in more than 100 locations in the North American region (as of Dec. 31, 2023). Bosch generated consolidated sales of $16.5 billion in the U.S., Mexico and Canada in 2023. For more information visit, and

The Bosch Group is a leading global supplier of technology and services. It employs roughly 429,000 associates worldwide (as of December 31, 2023). The company generated sales of $99 billion in 2023. Its operations are divided into four business sectors: Mobility, Industrial Technology, Consumer Goods, and Energy and Building Technology. With its business activities, the company aims to use technology to help shape universal trends such as automation, electrification, digitalization, connectivity, and an orientation to sustainability.
In this context, Bosch’s broad diversification across regions and industries strengthens its innovativeness and robustness. Bosch uses its proven expertise in sensor technology, software, and services to offer customers cross-domain solutions from a single source.
It also applies its expertise in connectivity and artificial intelligence in order to develop and manufacture user-friendly, sustainable products. With technology that is “Invented for life,” Bosch wants to help improve quality of life and conserve natural resources. The Bosch Group comprises Robert Bosch GmbH and its roughly 470 subsidiary and regional companies in over 60 countries. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. Bosch’s innovative strength is key to the company’s further development. At 136 locations across the globe, Bosch employs some 90,000 associates in research and development, of which nearly 48,000 are software engineers.

The company was set up in Stuttgart in 1886 by Robert Bosch (1861–1942) as “Workshop for Precision Mechanics and Electrical Engineering.” The special ownership structure of Robert Bosch GmbH guarantees the entrepreneurial freedom of the Bosch Group, making it possible for the company to plan over the long term and to undertake significant upfront investments in the safeguarding of its future. Ninety-four percent of the share capital of Robert Bosch GmbH is held by Robert Bosch Stiftung GmbH, a charitable foundation. The remaining shares are held by Robert Bosch GmbH and by a corporation owned by the Bosch family.
The majority of voting rights are held by Robert Bosch Industrietreuhand KG. It is entrusted with the task of safeguarding the company’s long-term existence and in particular its financial independence – in line with the mission handed down in the will of the company’s founder, Robert Bosch.

Additional information is available online at,,

Exchange rate: 1 EUR = 1.0818