Navien unveils residential air-source heat pump
The South Korean heating specialist said its new heat pump can achieve a seasonal coefficient of performance of up to 4.87 and flow temperatures of up to 75 C.
Rhoss launches non-reversible water-source heat pumps for high-temperature heating
Italy-based Rhoss has developed a cascaded water-source heat pump that uses either R1234ze or R515B as the refrigerant. It can purportedly produce hot water to a temperature of up to 85 C.
Solimpeks presents air-to-water heat pump for residential, commercial applications
The Turkish manufacturer said its Varm BCP heat pump has a heating capacity of 3 kW at 20 C outdoor temperature and a coefficient of performance ranging from 3.62 to 4.48.
Woltair expands online heat pump, solar PV platform
After finding growth in its home market and Poland, Czech Republic-based Woltair raised venture capital to expand its heat pump and solar PV software platform, used by both installers and homeowners, into Germany and Italy.
Rooftop PV reduces building retrofitting costs by up to 50%
Cambridge researchers have analyzed the benefits of installing a PV system on the roof of an apartment building in addition to energy refurbishment and have found that photovoltaics, especially if combined with heat pumps, makes retrofit projects more affordable.
Bosch unveils water source heat pumps for residential, commercial applications
Bosch Home Comfort has presented two new heat pumps series that can be used for both retrofits and new buildings. Both products have a size of a size of ½ to 6 tons and a coefficient of performance of up to 4.9.
Fraunhofer ISE presents propane heat pump with heating, cooling performance of 5.6
The German research institute said the new heat pump was developed in partnership with ZAE Bayern and Mafac E. Schwarz. The system uses propane (R290) as the refrigerant and is suitable for industrial processes with a temperature range of 50 C to 70 C.
Japanese researchers unveil solar chemical heat pump system for buildings
The novel heat pump concept combines solar energy with chemical storage and reportedly consume 75% less electricity than conventional heat pumps. The system relies on a battery and a heat storage tank that can be used either separately or simultaneously, depending on the outdoor conditions.
Combining residential air heat pumps with air-geothermal heat exchangers
Researchers in Italy have found that combining residential air heat pumps with air-geothermal heat exchangers may reduce power consumption by up to 30%. They tested the proposed combination using Matlab in a passive single-family building located in Valtellina, northern Italy.
Denmark to restart heat pump subsidy scheme
Danish citizens will once again be able to apply for heat pump subsidies from May 27. A DKK 17,000 ($2,469) grant will be available for air-to-water pumps and DKK 27,000 for liquid-to-water heat pumps.
