Light Commercial
Dual Fuel Systems
Pro 6.5 – 12.5 Ton Dual Fuel Heat Pumps
Choice 12.5 – 25 Ton Dual Fuel Heat Pumps
High-Performance for All Climate Conditions
Pro Performance and a Smart Choice
Combining an advanced electric heat pump with a high-performance gas furnace, Bosch dual fuel systems leverage smart controls to automatically choose the right heat source for any climate condition — keeping buildings comfortable and compliant while also reducing energy costs, minimizing downtime and advancing sustainability goals.
General Features
▶ Adjustable balance point: optimize for comfort, cost or emissions reduction
▶ Backup heating mode: if one heat type fails, the other auto-engages
▶ Hot gas reheat (HGRH): available on heat pumps with built-in humidity control
Unique Features (Pro)
▶ Dual independent refrigeration circuits
▶ Slide-out blower; hinged, tool-less panels
▶ Direct replacement of footprint available since 1999
Unique Features (Choice)
▶ Direct-drive plenum fans (DDP)
▶ Higher static capability
▶ Competitive curb compatibility
Our premium, high-efficiency rooftop unit
Why Choose Bosch Rooftop Units?
Verifiably Cost-Effective
Bosch dual fuel systems can reduce monthly energy bills, especially in regions with fluctuating gas and electricity prices. Also, dual fuel heat pumps with gas backup will typically have lower carbon emissions and operating costs than heat pumps relying solely on electric resistance.*
Expertly Engineered
The adjustable balance point control, dual-circuit redundancy, backup heating mode, operating cost and emissions tool, and the ability to reduce costs while meeting decarbonization goals are all optimized for year-round comfort and performance.
Automatically Efficient
Bosch dual fuel heat pump systems leverage the benefits of both heat pump and gas furnace heat sources to ensure peak efficiency in every climate condition, offering effortless energy savings and emissions reductions.
Smart Technology
A smart sensor monitors ambient outdoor conditions and automatically switches to the furnace when temps fall below the changeover set point, while Bluetooth-enabled controls simplify system integration and setup.
Easy Maintenance
Bosch dual fuel systems feature hinged panels and slide-out blowers to simplify servicing and minimize maintenance time.
Uniquely Reliable
The two-way backup heating mode automatically switches between heating options to maintain comfort when a source goes offline. Similarly, dual-circuit refrigeration ensures 50% capacity even if one circuit fails.
Highly Flexible
An adjustable changeover setpoint helps optimize performance and savings. Pro (6.5–12.5T) and Choice (12.5–25T) rooftop units fit a range of budgets and goals. Optional hot gas reheat (HGRH) provides precise humidity control. An easy-install, retrofit-ready design fits over 70% ofcompetitor curbs without an adapter (Choice), helping reduce operating costs and simplify replacements.
Consistently Comfortable
Instead of relying on inefficient electric resistance heating for supplemental capacity, a dual fuel system automatically switches to a more efficient gas furnace in freezing conditions, while also operating the gas furnace as an auxiliary heat source, enabling a delayed defrost cycle that reduces the “cold blow” common with electric-only systems in frigid weather.
Factory-Backed Warranty§
Bosch offers a limited warranty that delivers dependable, long-term peace of mind backed by the Bosch’s reputation for reliability:
▶Parts: 1 year
▶Coils: 1 year (3 years if coated)
▶Compressor and electric heat: 5 years
▶Aluminized heat exchanger: 10 years (15 years if stainless)
*Actual savings will vary based on the efficiency of the heat pump and the legacy heating system, as well as the climate, operating conditions and utility rates.
The Impact of Climate on Efficiency
At 47 °F, a 6.5-ton heat pump may offer 75,000 BTU/h heating capacity, whereas a gas furnace can output 146,000 BTU/h in the same conditions
The Bosch Pro and Choice Rooftop Units are ideal for commercial spaces. Their efficiency, precise control, and smart system integration make both units a strong fit for projects that need reliable, long-term performance.
About Bosch
Bosch Home Comfort Group
The Bosch Home Comfort Group is a global provider of efficient heating, ventilation, and air conditioning (HVAC) solutions with an innovative product portfolio adapted to regional needs. Following its landmark strategic acquisition in the residential and light commercial HVAC business in August 2025, the company unites a comprehensive portfolio of global and regional brands, including Bosch, Buderus, Hitachi, and YORK®. The Bosch Home Comfort Group employs more than 25,000 people worldwide and has a strong market presence in America, Asia, and Europe / Middle East / Africa, with a global network of 33 production sites and 26 development centers (including minority interests). With the acquisition, the Bosch Home Comfort Group almost doubles in size to more than eight billion euros in sales. For more information, visit www.bosch-homecomfortgroup.com and www. bosch-homecomfort.us.
Bosch Group
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, home comfort solutions, 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 www.bosch.com
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