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Vattenfall heat pump final
January 11, 2022 Europe Heating & Ventilation

Swedish Company Launches Home CO2 Heat Pump for Space and Hot-Water Heating

The heat pump can replace a gas boiler in an existing home without expensive retrofitting, says Vattenfall.

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CO2 heat pump defrost
January 11, 2022 Europe Heating & Ventilation

Air-to-Water Heat Pump Efficiency ‘Highly Dependent’ on Optimal Defrost

The heating capacity and COP of CO2 heat pumps can decrease more then 25% during defrost, but optimal defrost can lower this to less than 10%, says Fenagy.

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California state capitol in Sacramento
November 23, 2021 Heating & Ventilation North America

California ‘Likely’ to Limit GWP for Heat Pump Water Heaters

Electrification of buildings is expected to grow demand for heat pumps, which are currently HFC-based, according to CARB.

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FENAGY H600 cropped
November 9, 2021 Europe Heating & Ventilation

Fenagy to Deliver 3.3MW CO2 Heat Pump to Danish District Heating Provider

The deal is the largest order to date for the young company, launched in the summer of 2020.

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FENAGY H600 cropped
October 14, 2021 Europe Heating & Ventilation

CO2 Heat Pumps ‘Really Good’ for District Heating Systems

CO2 is the best available technology for air-to-water heat pumps in the 0.5 to 5MW capacity range, according to Fenagy CEO Kim G Christensen.

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METUS Heat2O QAHV N560YA HPB
October 12, 2021 Heating & Ventilation North America

Mitsubishi Launches CO2 Heat Pump Water Heater in the U.S.

The air-source Heat2O is said to deliver a COP up to 4.11.

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AHR Expo 2020 image final
September 9, 2021 Heating & Ventilation North America

Free Registration Open for In-Person AHR Expo 2022

After a forced cancellation in 2021, the event is scheduled to take place in Las Vegas from January 31 to February 2.

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MHI controller final
July 8, 2021 Asia Heating & Ventilation

Japanese OEM Upgrades Control Systems to Include CO2 Heat Pump Water Heaters

Introduced in Europe, MHI’s central control consoles can manage up to 16 Q-ton CO2 units and 128 air conditioners.

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Christensen fianl
June 30, 2021 Europe Heating & Ventilation

Startup Fenagy Producing Small District-Heating CO2 Heat Pump with Novel Features

The 300kW unit uses cold gas defrost and an expander instead of an ejector.

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FENAGY H600 cropped
May 18, 2021 Europe Heating & Ventilation

Danish District Heating Provider Phases Out Fossil Fuels with CO2 Heat Pump

Vestervig Fjernvarme’s 1.2MW heat pump, to be delivered by Danish CO2 specialist Fenagy, will replace oil and wood-chip boilers.

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