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Mitsubishi Heavy Industries is expanding overseas sales of its ETI-W high-temperature centrifugal heat pump, previously available in Japan since 2025. The system is designed to recover low-temperature waste heat and produce hot water up to 90°C; the company reports a heating COP of 4.01 under that operating condition.
The ETI-W is a heat-recovery heat pump intended to capture waste heat from factory production processes and reuse it to make hot water. Mitsubishi Heavy Industries says the system has a maximum heating capacity of 640 kW and uses HFO-1233zd(E) refrigerant. The product has been available in Japan since 2025.
MHI Thermal Systems says overseas sales will focus on process applications in electronics, automotive, food, chemical and pharmaceutical factories. The company also identifies heating and hot-water supply at commercial and accommodation facilities as potential uses. It says system proposals will be tailored to each customer’s circumstances.
For sites that already have chillers, the company says the ETI-W can be configured to recover heat carried in the chiller’s cooling water and reuse it to produce higher-temperature water. MHI also points to data centres as a possible application, where recovered heat could contribute to building heating and hot-water supply.
Waste Heat for Industrial Hot Water
The overseas expansion brings a heat-recovery option to facilities that need hot water for production or building services and have usable waste heat on site. Rather than treating that heat solely as a by-product, an ETI-W installation could redirect it toward a useful heating load. The practical value will depend on each facility’s available heat source, hot-water demand and system design.
High-temperature output matters because some industrial and commercial uses require hotter water than lower-temperature heat pumps can supply directly. MHI says the unit can produce water up to 90°C, while its reported heating performance offers a point of comparison for prospective buyers. Actual savings, emissions effects and operating costs are not provided in the available report, so the announcement does not establish how the system would perform at a particular site.
high temperature heat pump for industrial use
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From Japanese Launch to Overseas Sales
MHI introduced the ETI-W for the Japanese market, where it has been available since 2025. The overseas expansion extends the sales plan beyond that initial market, while the company’s stated customer focus remains centred on facilities with process heat or hot-water requirements.
The announcement follows earlier reporting on MHI’s development of a centrifugal heat pump designed to use waste heat to supply hot water at 90°C. The current report describes the product’s overseas sales expansion and its intended applications, but does not provide a country-by-country rollout schedule.
“The company says it will offer thermal solutions according to the specific circumstances for each customer.”
— MHI Thermal Systems, as reported by Cooling Post
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Markets, Performance and Costs
The available report does not name the countries where overseas sales will start, give a launch timetable, or identify initial customers. It also does not state the unit’s price, installation requirements, expected payback period or project-level energy savings.
MHI’s reported COP of 4.01 is presented for heating while supplying water up to 90°C, but the source does not describe the test conditions, operating temperatures, measurement method or whether the result has been independently verified. Performance at a given facility would depend on its heat source, demand profile and integration with existing equipment.
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Rollout Details and Customer Projects
The next developments to watch are announcements identifying target countries, local sales arrangements and customer projects. Those details would show where the ETI-W will first be offered and how it is being applied outside Japan.
Potential buyers will also need site-specific information on system sizing, integration with chillers or process equipment, operating performance and project economics. MHI has said it will tailor solutions to customer circumstances, but the report does not give examples of overseas installations or a schedule for further product updates.
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Key Questions
What is Mitsubishi Heavy Industries expanding overseas?
MHI is expanding overseas sales of its ETI-W high-temperature centrifugal heat pump, which has been available in Japan since 2025.
What does the ETI-W heat pump do?
It is designed to recover low-temperature waste heat, including heat from factory processes, and use it to produce hot water up to 90°C.
Which industries is MHI targeting?
MHI identifies electronics, automotive, food, chemical and pharmaceutical factories, as well as commercial and accommodation facilities. It also cites data centres as a possible source of heating and hot-water applications.
How much heating capacity does the ETI-W have?
The reported maximum heating capacity is 640 kW. MHI’s product report also gives a heating COP of 4.01 while supplying water up to 90°C, but does not provide test conditions.
When and where will overseas sales begin?
The report confirms an expansion to overseas markets but does not name specific countries or provide a sales start date for individual markets.
Source: rss
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