Weil-McLain launches dual-fuel heat pumps for residential, light commercial applications
The US-based heating specialist said its new air-to-water heat pumps use difluoromethane as the refrigerant and have a coefficient of performance of up to 5.37.
Lennox debuts residential heat pump for cold climates
The company says that its new SL22KLV heat pump system can supply heat in temperatures as low as -28.9 C. It uses R-454B as the refrigerant and has a size ranging from 2 tons to 5 tons.
Fraunhofer institutes developing electrocaloric solid-state heat pump without compressors
Six Fraunhofer institutes are developing new electrocaloric heat pumps that use elastocaloric heat pipes instead of compressors to extract heat from the sources. The first pilot systems developed by the research team achieved an electrical efficiency of 99.74%.
Record start to 2025 for UK heat pumps, batteries, MCS reports
Almost 5,000 heat pump installations in January 2025 mark the strongest start to a year on record. It follows a record-breaking 2024 for UK heat pump installations. Batteries and residential solar installations are also up on January 2024 levels.
Slovenia allocates €20 million for renewable electricity, heat
Slovenian electricity market operator Borzen has shared details of a forthcoming €20 million ($20.9 million) fund that will support the installation of heat pumps and solar thermal collectors, alongside other renewable energy devices. Applications for the subsidy will open Mar. 18, 2025.
Heat pump sales dropped across large European markets in 2024
Analysis by the European Heat Pump Association found sales of heat pumps across the 13 main European markets, that make up around 85% of the total European market, fell by an average of 23% year-on-year in 2024, with the UK the only one to buck the trend.
PVT-assisted air-source heat pump based on phase-change tank
Scientists in China have designed a photovoltaic-thermal integrated air-source heat pump hot water system that uses a phase change tank to lower energy consumption and achieve higher power generation performance than conventional heat pumps. The system is designed to use water as a working medium and to provide circulation power for forced circulation.
A closer look at Aira’s heat pump tech
Swedish manufacturer Aira launched its heat pump in Europe in 2024. The company told pv magazine it is now developing a full home energy management system proposition to integrate heating, solar, battery energy storage and electric vehicle charging.
US startup developing defrost-free residential heat pump for cold climates
TerraVis Energy claims its new heat pump system can achieve a seasonal coefficient performance of 3.5 and deliver 30 C of heat indoors at -50 C. CEO Lorenzo Rossi told pv magazine that the system could be produced at a lower cost than conventional models.
Panasonic launches decentralized water-to-air heat pumps
The Aquarea Loop heat pump system is intended for applications in residential and commercial buildings. It features a coefficient of performance of up to 5.9 and heating capacities ranging from 1.10 kW to 3.10 kW.
