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Mitsubishi Heavy Industries is expanding overseas sales of its ETI-W centrifugal heat pump, previously available in Japan since 2025. The system captures low-temperature waste heat and can produce hot water up to 90°C; the company reports a heating COP of 4.01 at that supply temperature.
Mitsubishi Heavy Industries is expanding overseas sales of its ETI-W centrifugal heat pump, a system designed to recover low-temperature waste heat and produce hot water at up to 90°C. The move targets industrial and commercial users outside Japan that need high-temperature water for processes, heating or hot-water supply.
The ETI-W is a heat-recovery heat pump intended to capture heat that would otherwise be released from factory production processes. MHI says the unit has a maximum heating capacity of 640 kW and uses HFO-1233zd(E) refrigerant. It has been available in Japan since 2025, and the company is now extending sales to overseas markets.
MHI Thermal Systems plans to focus on process applications in electronics, automotive, food, chemical and pharmaceutical factories. The company also identifies commercial and accommodation facilities as potential users for heating and hot-water supply. It says it will propose thermal solutions based on the circumstances of individual customers; the source report does not identify particular overseas countries, customers or installation dates.
The company reports that the ETI-W achieved a heating coefficient of performance (COP) of 4.01 while supplying water at up to 90°C. That figure is a company-reported performance result, not a guarantee for every operating site. The report does not provide the test conditions, annual performance data or independent verification of the result.
Waste Heat for High-Temperature Needs
Many industrial processes and buildings need hot water, while factories and cooling equipment can discharge usable heat. A heat pump that can raise the temperature of recovered heat may help a facility put some of that energy back to work, reducing reliance on separately produced heat. Whether it lowers energy use or costs at a particular site will depend on the waste-heat source, operating hours, system design and the heat pump’s performance in actual conditions.
The proposed applications include facilities that already operate chillers. MHI says the ETI-W can be configured to recover heat retained in a chiller’s cooling water and reuse it as high-temperature water. The company also points to data centres as a possible source of heat for building heating and hot-water demand. These are potential uses described by the manufacturer; the report does not confirm specific projects or measured savings.
industrial waste heat recovery heat pump
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From Japan to Overseas Markets
The ETI-W was introduced for the Japanese market before this overseas sales expansion. A related report published on October 4, 2025, described MHI’s development of a centrifugal heat pump intended to use waste heat to supply water at 90°C. The current development is the extension of sales beyond Japan, rather than a newly announced change to the product’s stated temperature or capacity.
The unit’s use of HFO-1233zd(E) and its centrifugal design are part of the product specification reported by Cooling Post. MHI’s stated overseas focus spans industrial process heat and building services, but no sales volumes, regional rollout schedule or export-market approvals are included in the available report.
“It will offer thermal solutions according to the specific circumstances for each customer.”
— MHI Thermal Systems, as reported by Cooling Post
high temperature heat pump for factories
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Markets, Projects and Performance Data
The announcement, as reported, does not specify which overseas markets will receive the ETI-W first, when deliveries will begin, or whether orders have been secured. It also gives no pricing, production capacity, installation count or customer names.
Further information is needed to assess performance in different settings. The reported COP does not come with test conditions or a comparison baseline, and the source does not state expected savings, emissions reductions, maintenance requirements or how output changes with operating conditions. Those details matter because waste-heat temperature and availability vary by facility.
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Overseas Rollout Details to Come
The next developments to watch are MHI’s identification of target countries and sales partners, along with announcements of customer installations. Project details could show how the heat pump is integrated with existing chillers or production equipment and what site conditions are required.
For potential buyers, information on operating performance, installation costs and measured energy use would help establish whether the system suits a particular facility. None of those figures or project timelines is included in the current report, so the scale and pace of the overseas expansion remain unconfirmed.
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Key Questions
What is the MHI ETI-W?
It is a centrifugal heat-recovery heat pump designed to capture low-temperature waste heat and produce hot water at up to 90°C.
How much heating capacity does it have?
MHI lists a maximum heating capacity of 640 kW. The available report does not describe output under different operating conditions.
Which facilities is MHI targeting?
The company identifies factories in the electronics, automotive, food, chemical and pharmaceutical sectors, as well as commercial and accommodation facilities. It also describes possible uses in facilities with chillers and data centres.
What does the reported COP of 4.01 mean?
COP is a ratio used to describe heat-pump performance. MHI’s reported heating COP of 4.01 applies to operation supplying water up to 90°C, but the source does not provide test conditions or independent verification.
When will the ETI-W be available overseas?
MHI is expanding overseas sales, but the report does not name specific countries, delivery dates or confirmed overseas installations.
Source: rss
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