heat pump

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.

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.

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.

Enercity has begun constructing a 30 MW wastewater-based heat pump in Hanover as part of its shift away from coal-based district heating, replacing capacity from the Stöcken coal plant alongside biomass, power-to-heat, and waste-heat systems.

Researchers in the United Kingdom developed a scheduling model for residential heat pumps that reduces electricity costs while maintaining thermal comfort under dynamic tariffs and uncertain rooftop PV generation. It optimizes when to use grid power, PV energy, and building thermal storage.

The Korean manufacturer said its new heat pump system can achieve a seasonal coefficient of performance of up to 4.9 under low-temperature floor heating conditions, and approximately 3.78 under higher-temperature operation at 55 C.