Large industrial split system air conditioner with two blue-coiled vents and a gray metal exterior, shown from the front against a white background.
Large industrial HVAC unit with blue cooling fins and metal exterior casing, viewed from an angle—an example of advanced Midea air conditioning and modern heating and cooling solutions.
A vertical metal commercial HVAC unit with a visible blue heat exchanger and labels on the lower panel, designed for heating and cooling solutions using a split system air conditioner.
Large industrial split system air conditioner with two blue-coiled vents and a gray metal exterior, shown from the front against a white background.
Large industrial HVAC unit with blue cooling fins and metal exterior casing, viewed from an angle—an example of advanced Midea air conditioning and modern heating and cooling solutions.
A vertical metal commercial HVAC unit with a visible blue heat exchanger and labels on the lower panel, designed for heating and cooling solutions using a split system air conditioner.

Mars Large R290 Commercial Heat Pump

Midea Mars Large R290 Commercial Air Source Heat Pump delivers high-capacity heating, cooling and hot water for demanding commercial and industrial applications. Available in 50, 60 and 70 kW capacities, this high-temperature air-to-water heat pump utilises natural R290 refrigerant and inverter-driven technology for efficient, lower-carbon heating and cooling. Capable of producing leaving water temperatures up to 85°C at −5°C ambient, the Mars Large is ideal for commercial heating projects requiring high-temperature performance.

With a scalable modular design supporting up to eight units in cascade, the Mars Large provides a versatile solution for large commercial developments, including hotels, healthcare facilities, offices and retail buildings.

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Download full product specifications. Specification varies per size.

Installers with a Midea account benefit from next day delivery across the UK, ensuring equipment arrives exactly when it’s needed to avoid delays and keep installations moving.

With same day quotes available, you can price projects quickly and respond to customers without delay. Combined with our streamlined logistics network and dedicated trade service, account holders benefit from efficient order processing, dependable lead times, and the support needed to deliver every project on schedule.

Midea offers an industry-leading warranty, designed to support reliability and performance, our warranty ensures systems are protected when installed, registered and serviced in line with our guidelines.

With clear processes and dependable support, we make it easy to manage warranties and maintain high standards across every project.

Visit our warranty page for more information.

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High Temperature Heating Solution

From large-scale developments to complex heating system upgrades, the Mars Large R290 offers a versatile solution for projects where performance, efficiency and reliability are essential. Designed to accommodate varying heating demands, it provides the flexibility to support both new installations and the transition towards lower-carbon commercial heating.

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Mars Large R290 Commercial Heat Pump

Engineered specifically for large-scale commercial and industrial applications with high cooling, heating and hot water demands. Delivers powerful, reliable performance for offices, retail, hospitality and healthcare developments. Available in three phase capacities of 50, 60 and 70kW.

Supports sustainability targets and helps future-proof projects against evolving environmental regulations. Utilises R290 refrigerant with ultra-low GWP = 3 (GWP: Global Warming Potential).

A lightbulb with a plant inside sits on grass next to a label for R290 natural refrigerant, highlighting its low global warming potential (GWP=3) in commercial HVAC and Midea air conditioning systems.

Delivers leaving hot water temperatures of up to 85°C at -5°C ambient temperature, ensuring reliable heating and hot water all year round.

Up to 8 units can be cascaded to achieve substantial system capacity for large commercial applications, providing flexibility for phased developments and allowing for future system expansion. Provides system redundancy, if one module is offline, others continue operating to maintain service continuity. One wired controller can manage up to 8 units.

Utilises inverter-driven compressors for precise output modulation, cutting energy use during part-load operation, minimising compressor cycling, and extending system lifespan while improving seasonal efficiency.

Suitable for urban and noise-sensitive commercial environments. Standard, silent, super silent and night silent modes available.

Heavy-duty casing and corrosion-resistant components for long-term durability. Designed for rooftop, plant deck, or ground-level commercial installations. Built for year-round operation with dual-system alternating defrosting.

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