Heat Pumps

Mitsubishi has expanded its Hydrolution EZY R290 heat pump series with two models with capacities of 10 kW and 14 kW. The new products use R290 refrigerant and can deliver up to 75 C flow temperatures.

Amazon has conducted a six-month field trial of a rooftop heat pump system developed by U.S. startup Transaera at one of its logistics facilities. The system uses metal–organic framework (MOF)–based dehumidification to remove moisture from outdoor air before cooling.

The Italian manufacturer has expanded its propane monobloc heat pump range with new models delivering up to 85 C flow temperature and achieving a seasonal coefficient of performance of 4.95.

A research team in Italy developed a PVT-driven heat pump system for domestic hot water production that combines packed-bed latent heat storage with sensible thermal storage to better balance supply and demand. Their simulations showed that hybrid storage coupled with temperature-based routing significantly improves system efficiency, raising heat pump coefficient of performance and increasing renewable energy utilization.

Finnish energy company Fortum has switched on two industrial-scale heat pumps in southern Finland that will utilize excess heat from two local data centres belonging to Microsoft from next year. The company states data centre waste heat could cover around 40% of the total 2 TWh annual district heating demand of users in the area.

An international research team has developed and tested a hybrid energy system combining photovoltaic-thermal collectors, borehole thermal energy storage, and a dual-source heat pump to supply low-carbon heating for livestock buildings. The full-scale prototype, demonstrated on an Italian swine farm, showed high efficiency, strong seasonal performance, and reduced reliance on fossil fuels while enabling partial self-supply of electricity and heat.

Researchers in Canada designed an air-source heat pump integrated with an air-based solar collector and radiant floor heating for cold climates, showing that the proposed system configuratuon could improve the coefficient of performance from 2–4 to 2–6 and reduce significantly annual energy consumption.

Nusku has developed a prototype of a fully integrated air-source heat pump system that combines the heat pump with a hot water cylinder and controls into a single outdoor unit. The design aims to simplify installation and reduce space requirements by replacing separate indoor and outdoor components with one pre-packaged system.

Daikin has launched the Altherma 3 H HT, a pre-engineered air-to-water heat pump using R-32 refrigerant, operating down to −28 C and delivering up to 70 C leaving water temperature for direct boiler replacement in existing radiator systems. The system reportedly achieves a coefficient of performance of 4.86.

The system integrates a battery, hybrid inverter, and home energy management system into a single device. It supports the integration of additional appliances, including heat pumps via SG-Ready interfaces. A connection to Tesla’s proprietary wallbox is also planned.