Bosch 2023 Department of Energy Regulatory Changes

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The Department of Energy’s (DOE) new minimum efficiency standards for new part of the ongoing initiative to consumption the Thermotechnology is positioned to be one of the first manufacturers to market with a DOE 2023 ready heat pump line.

regulations are

United States. Bosch


reduce overall energy

HVAC equipment will go into effect on January 1, 2023. These


2023 Department of Energy ChangesRegulatory

Nothing. There will be no changes to product designs, part numbers, or model numbers for any Bosch heat pumps as a result of the DOE 2023 requirements.***

The Steps We Are Taking

Environmental stewardship is a core philosophy that inspires and drives Bosch global product development. Bosch Thermotechnology strives for high efficiency in its products and is wellpositioned to meet the new, federally mandated minimum efficiency standards.

▶ Summer 2022: Bosch will complete re-rating the entire Bosch unitary heat pump portfolio. Before 2023: Bosch will add the new performance data (SEER2/ HSPF2) to AHRI and update these ratings in all of our technical documentation.

2023 Regulatory Changes

2023 Minimum Efficiency

*15.0 SEER up to 45k BTU, 14.5 SEER at/above 45k BTU, ** External Static Pressure, ***Any 14.0 SEER heat pump built before Jan 1, 2023 can still be installed on or after Jan 1, 2023. Change

For 2023, the DOE has reanalyzed and increased the minimum efficiency levels accordingly. For air conditioners in the North, the minimum efficiency will increase from 13.0 to 14.0 SEER and in the South from 14.0 to 15.0 SEER* under today’s test procedure. The national heat pump minimum efficiency will increase from 14.0 to 15.0 SEER. Distributors can be banned from selling equipment if found to be selling non-compliant products. Dealers and contractors found installing noncompliant equipment must replace the equipment at their own cost. Repeat violators can be banned from purchasing equipment. Change

Why The

What Do You Need to Do?

How is Bosch Responding? Before we design our products, we always consider the customer's journey and the evolution of technology. Because of Bosch's commitment to innovation, we are proud to be one of the first manufacturers to offer a fully DOE 2023 compliant heat pump portfolio without disrupting anything for our customers.

Effective in 2023, the United States Department of Energy (DOE) is increasing the minimum efficiencies for central air conditioners and heat pumps. These new regulations are part of the DOE's ongoing initiative to reduce overall energy consumption in the United States. The testing standards will be updated accordingly.

HVAC manufacturers will be required to follow a new testing procedure for developing efficiency ratings. With this change, the static pressure used when testing will be increased by up to 5X. The goal of this change is to develop a more rigorous method of testing that better reflects field conditions (see graphic below). Because efficiency ratings will be affected as a result of this new standard, there will be new metrics and nomenclature – SEER2, EER2 and HSPF2. Please note: ▶ The new SEER2 ratings will be lower and the minimum efficiencies will be reduced to account for the more difficult test procedures, compared to the SEER ratings on the same system – e.g. the North region’s 15.0 SEER minimum efficiency under the current test procedure will become a 14.3 SEER2 under the new test procedure. ▶ All tiers of products will need to be retested, optimized, and relaunched in accordance with the new test procedure - resulting in a much larger scale project for manufacturers compared to prior minimum efficiency changes. ▶ The new test procedure will also drive changes to the airflow set point on indoor blowers (air handlers and furnaces). Heat Pump Test Procedure Example Current Test Procedure: SEER, EER, HSPF New 2023 Test Procedure: SEER2, EER2, HSPF2 Test Procedure Change Increased external static pressure by 5X = increased blower motor watts = reduced efficiency rating 0.1 ESP 0.5 ESP New Testing Procedures 2015 vs 2023 National Standards for Bosch Heat Pumps 2015 NATIONAL STANDARDS FOR HEAT PUMPS NATIONAL SEER HSPF HP 14.0 8.2 SPP 14.0 8.0 2023 NATIONAL STANDARDS FOR HEAT PUMPS NATIONAL SEER HSPF HP 15.0 8.8 SPP 14.0 8.0

Type National



Split System HPs 15.0

System Type NEW SEER

HSPF2 Packaged Heat Pumps, Gas Electrics and Dual-Fuel HPs 14.0 SEER and


System Type NEW

Split Heat pump minimum efficiency standards will increase by 1.0 to 15.0 SEER and a minimum of 8.8 HSPF is required. 2023. Please note that only the SEER rating will be impacted by the 2023 DOE standards. All part and model numbers for Bosch heat pumps will remain the same. efficiency requirements for products will not increase but will be required to comply with the new test procedure. NATIONAL STANDARDS Minimum Efficiency Standard AND SEER2 AND 8.0 HSPF 13.4 SEER2 and 6.7 HSPF2 NATIONAL STANDARDS Minimum Efficiency Standard SEER AND HSPF SEER2 AND HSPF2 SEER and 8.8 HSPF 14.3 SEER2 and 7.5 HSPF2 Thermotechnology is positioned to be one of the first manufacturers to market with a DOE 2023 ready heat pump line.

small packaged


Packaged Heat Pump Ratings The

Type National



Split Heat Pump Ratings

Please Note Any heat pumps that do not reach the new minimum DOE requirements can no longer be manufactured. Outdoor Unit Indoor Unit (A2EER-95°F) SEER (RegionHSPFIV) (A2EER2-95°F) SEER2 HSPF 2 (Region IV) BOVB-36HDN1-M20G BVA-24WN1-M20 14 20.5 10.5 13.0 20.0 9.5 BOVB-36HDN1-M20G BVA-36WN1-M20 12.5 20 10.5 12.0 19.0 9.5 BOVB-60HDN1-M20G BVA-48WN1-M20 13.5 20 10.5 12.0 18.5 9.5 BOVB-60HDN1-M20G BVA-60WN1-M20 12.5 19 10.5 11.7 18.0 9.5 Figure 1 IDS Premium Connected Unitary Heat Pumps: Below is a table which have 2 ton, 3 ton, 4 ton, 5 ton IDS Premium Connected systems as an example of the typical update for Bosch unitary heat pumps. As shown in this chart, the SEER will decrease from 20 SEER to 19 SEER2. (See Figure 1 IDS Premium Connected) In general, the efficiency level will appear to be lower in SEER2/HSPF2/EER2 vs. the similar SEER1/HSPF1/EER1 rating with the old standard. Examples are below. All Bosch SEER2 ratings will be available in our technical documentation in the coming months. Outdoor Unit Indoor Unit (A2EER-95°F) SEER (RegionHSPFIV) (A2EER2-95°F) SEER2 HSPF 2 (Region IV) BMS500-AAS009-1CSXRC BMS500-AAU006-1AHWXC 15.8 26.5 14 15.8 26.5 13.6 BMS500-AAS009-1CSXHC BMS500-AAU009-1AHWXC 16.2 28.1 13 16.2 28.1 11.5 BMS500-AAS012-1CSXHC BMS500-AAU012-1AHWXC 14 25.5 13 14 25.5 10.4 BMS500-AAS018-1CSXHC BMS500-AAU018-1AHWXC 12.5 21.5 13 12.5 21.5 10.7 BMS500-AAS024-1CSXHC BMS500-AAU024-1AHWXC 13 21.5 12 13 21.5 11.4 Figure 2 Cimate 5000 Wall Mounted System Ductless Mini-Splits: There are minimal changes in the SEER2 rating for Bosch ductless mini-splits. The HSPF rating will decrease by 1-2.6 rating points for HSPF2, depending on the model. Below is the chart for ductless wall-mounted systems as an example. (Figure 2 Cimate 5000 Wall Mounted System) Bosch Products and the New BeforeStandardEverything, There’s Bosch. Simple. Reliable. Innovative.

About Bosch Bosch Group

Bosch Thermotechnology is a leading source of high quality water heating and comfort systems. The company offers gas tankless, electric whole house and point-of-use water heaters, Bosch and Buderus floor-standing and wall mounted boilers, Bosch and FHP geothermal, water-source and air-source systems as well as controls and accessories for all product lines. Bosch Thermotechnology is committed to being Simply Smart by offering products that work together as integrated systems that enhance quality of life in an ultra-efficient and environmentally friendly manner. For more information, visit

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The Bosch Group is a leading global supplier of technology and services in the areas of Automotive, Industrial Technology, Consumer Goods and Building Technology. The company was founded in Stuttgart, Germany, in 1886 and presently has more than 440 subsidiaries and is represented in over 150 countries. In the U.S., Canada and Mexico, the Bosch Group manufactures and markets automotive original equipment and aftermarket solutions, industrial drives and control technology, power tools, security and communication systems, packaging technology, thermotechnology, household appliances and software solutions. The Bosch Group’s products and services are designed to improving quality of life by providing innovative and beneficial solutions. In this way, the company offers technology worldwide that is “Invented for life.” Additional information is available online at and