MHI Thermal Systems Expands European Market with Two New Air-to-Water Heat Pump Models Utilizing Natural Refrigerant R290

Mitsubishi Heavy Industries Launches Next-generation Heat Pumps with Eco-Friendly Refrigerant

Tokyo,Japan – October 30,2025 – Mitsubishi Heavy Industries Thermal Systems,Ltd. (MHI Thermal Systems) announced Today the rollout of two new models within its “Hydrolution EZY” series of air-to-water (ATW) heat pumps for the European market. The new heat pumps utilize R290, or propane, a natural refrigerant known for its low environmental impact and exceptional energy efficiency.

Addressing the Growing Demand for Enduring Heating Solutions

The Newly Released models, boasting capacities of 6kW and 7.1kW, are slated for release this winter. Air-to-water Heat pumps are increasingly recognized as vital components in transitioning away from traditional fossil fuel-based boilers for domestic water heating, heating, and cooling. These innovative systems extract thermal energy from the ambient air and transfer it to water, providing both hot and cold water for various applications.

Simplified Installation and Enhanced Performance

these additions to the Hydrolution EZY line are monobloc units. They feature an integrated water heat exchanger housed within the outdoor unit, requiring only water piping for installation. This design simplifies the installation process compared to split-type ATW systems, which require more complex refrigerant pipe connections between indoor and outdoor units.

R290: A Refrigerant with a Minimal environmental Footprint

The selection of R290 refrigerant highlights MHI Thermal Systems’ commitment to environmental stewardship.R290 exhibits a remarkably low global warming potential (GWP) of just 0.02. This is a critical advantage as European regulations continue to tighten in response to climate change concerns. According to the latest IPCC Sixth Assessment Report, a lower GWP translates directly into a diminished greenhouse effect.

High-Temperature Capabilities and Quiet operation

The units maintain operation at a flow temperature of 75℃, even in challenging weather conditions. They can operate effectively in temperatures ranging from -25℃ to 43℃, ensuring reliable heating and hot water supply in colder climates. The 6kW model operates at a remarkably quiet 34dB(A), and includes a “quiet mode” to minimize noise pollution in residential areas.

Safety Features and aesthetic Design

Safety is paramount,and the units are equipped with refrigerant leak detection sensors. Shoudl a leak occur, the unit will automatically shut down, and a fan will activate to dissipate any escaped refrigerant. Visually, the redesigned units present a sleek and modern aesthetic with an all-black finish accented by a silver vertical line on the fan guard for enhanced integration into various building environments.

Contributing to Carbon Neutrality Goals

By promoting a shift from fossil-fuel combustion to electric-powered ATW systems, the Hydrolution EZY series supports carbon neutrality efforts in European countries. This aligns with MHI Group’s broader MISSION NET ZERO initiative, aiming for complete corporate carbon neutrality by 2040.

Feature	Specification
Refrigerant	R290 (Propane)
Capacity	6kW and 7.1kW models
Operating Temperature Range	-25℃ to 43℃
Noise Level (6kW model)	34dB(A)
Unit Type	Monobloc

Did You Know? Propane (R290) is a byproduct of natural gas processing and biofuel production, making it a readily available and sustainable refrigerant option.

The Future of Heat Pump technology

The European heat pump market is experiencing considerable growth, driven by increasing energy prices and stringent environmental regulations. According to the European Heat Pump Association, heat pump sales increased by approximately 35% in 2023. This trend is expected to continue as more countries implement policies to incentivize the adoption of renewable heating and cooling technologies. The progress of more efficient and environmentally friendly refrigerants, like R290, will be essential in meeting the rising demand and achieving climate goals. Future innovations may include even lower-GWP refrigerants and advancements in heat pump design to further enhance performance and reduce energy consumption.

Frequently Asked Questions about the Hydrolution EZY series

What are your thoughts on the increasing adoption of heat pump technology in Europe? And how crucial do you believe eco-friendly refrigerants are in the fight against climate change? Share your insights in the comments below!

How does MHI Thermal Systems address the flammability concerns associated with R290 refrigerant in their new heat pump models?

Mitsubishi Heavy Industries (MHI) Thermal Systems is significantly bolstering its presence in the European heating market with the launch of two new air-to-water heat pump models. A key differentiator? Both utilize propane (R290) as a natural refrigerant, aligning with increasingly stringent environmental regulations and growing consumer demand for sustainable heating solutions. This move positions MHI as a leader in eco-amiable HVAC technology within Europe.

Understanding the Shift to R290 Heat Pumps

The heating industry is undergoing a rapid conversion, driven by the need to reduce carbon emissions and phase down high-GWP (Global Warming Potential) refrigerants like traditional HFCs.R290, a hydrocarbon, offers a compelling alternative.

* Zero Ozone Depletion Potential (ODP): unlike many synthetic refrigerants, R290 doesn’t harm the ozone layer.

* Low GWP: R290 boasts a GWP of just 3, significantly lower than even the newest HFO refrigerants and drastically lower than older HFCs.

* High Efficiency: Propane’s thermodynamic properties contribute to excellent heating performance, even in colder climates.

* Natural Refrigerant: Being a naturally occurring substance, R290 reduces reliance on synthetic chemicals.

However, R290 is mildly flammable, requiring specific safety measures in heat pump design and installation – a challenge MHI Thermal Systems has demonstrably addressed.

New Models: Key Features and Specifications

MHI’s new air-to-water heat pumps are designed for both new construction and retrofit applications, catering to a broad range of residential and light commercial properties. While specific model numbers and detailed specifications are still being finalized for certain European regions, key features include:

* High Coefficient of Performance (COP): Expect COPs exceeding 4.5, translating to significant energy savings for homeowners.

* Wide Operating Range: Designed to deliver efficient heating even in temperatures as low as -20°C, making them suitable for colder European climates.

* Compact Design: Optimized for ease of installation,even in space-constrained environments.

* Smart Home Integration: Compatibility with leading smart home systems for remote control and monitoring.

* Low Noise Operation: Engineered for quiet operation, minimizing disturbance to occupants.

* R290 Safety Features: Incorporating advanced leak detection,charge reduction techniques,and robust system design to mitigate flammability risks.

Safety Considerations with R290 and MHI’s Approach

The use of flammable refrigerants necessitates a heightened focus on safety. MHI Thermal Systems has implemented several key measures:

1. Reduced Refrigerant Charge: Minimizing the amount of R290 used in each unit significantly reduces the risk.
2. Leak Detection Systems: Advanced sensors continuously monitor for refrigerant leaks, triggering automatic shutdown if necessary.
3. Robust System Design: Components are designed and tested to withstand potential pressure fluctuations and prevent leaks.
4. Installation Training: MHI is providing complete training to installers on the safe handling and installation of R290 heat pumps, adhering to relevant European standards (EN 378).
5. Compliance with Regulations: The new models are fully compliant with the latest European F-Gas regulations and safety standards.

The European Heat Pump Market: Trends and Opportunities

The European heat pump market is experiencing explosive growth, fueled by government incentives, rising energy prices, and increasing environmental awareness.

* EU Green Deal: The European Union’s ambitious climate goals are driving demand for renewable heating technologies.

* F-Gas Regulation: The ongoing phase-down of high-GWP refrigerants is creating a market possibility for natural refrigerant solutions like R290.

* Energy Security: The geopolitical landscape is prompting a shift towards energy independence, with heat pumps offering a locally sourced heating alternative.

* Retrofit Demand: A significant portion of the European building stock requires modernization, presenting a large market for heat pump replacements.

MHI’s expansion comes at a crucial time, positioning them to capitalize on these favorable market conditions.

Benefits of choosing an R290 Air-to-Water Heat Pump

Beyond environmental benefits, homeowners and building owners can expect several advantages:

* Lower Energy Bills: High efficiency translates to reduced heating costs.

* Increased Property Value: Eco-friendly heating systems are becoming increasingly desirable to buyers.

* reduced Carbon footprint: Contribute to a more sustainable future.

* Government Incentives: Many European countries offer financial incentives for installing heat pumps.

* Long-Term Reliability: MHI Thermal Systems is known for its high-quality, durable products.

Practical Tips for Selecting and Installing an R290 Heat Pump

* Professional Assessment: Have a qualified HVAC professional assess your heating needs and recommend the appropriate heat pump size.

* Certified Installer: Ensure the installer is certified to work with flammable refrigerants (R290).

* Proper Ventilation: Adequate ventilation is crucial for safety.

* Regular Maintenance: Schedule