heat pump

EcoFlow has launched a new air-to-water heat pump for residential applications. The new product, equipped with R290 refrigerant, is available in 9 kW and 20 kW versions. The US-headquartered manufacturer has also developed a new smart immersion heater, which uses surplus solar energy to heat up water. It is compatible with all available rooftop PV systems.

The German manufacturer said the new air-to-water systems are part of its Hybrox series. Their coefficient of performance is between 4.3 and 5.3 and their size ranges from 11 kW to 16 kW.

New research from Germany showed that PV-powered heat pumps could require less surface than their solar thermal-driven counterparts in district heating networks. The scientists also found that increasing energy prices would have a minimal impact on the viability of both concepts.

The new heat pumps use R-454B as a refrigerant and have a size ranging from 2 tons to 5 tons. Their coefficient of performance (COP) ranges between 3.24 and 3.40, according to the manufacturer.

The Japanese manufacturer said its new heat pump line features a modular approach to system design. The new products are available with capacities of 100 kW, 125 kW and 160 kW and can reportedly achieve a water output temperature of 60 C.

Researchers at Germany’s Frauhofer ISE have analyzed the performance of a residential heat pump connected to a rooftop PV system relying on battery storage and have found that this combination significantly improves the performance of the heat pump while also increasing considerably the solar array’s self-consumption rate.

The Japanese manufacturer claims the new product has a seasonal energy efficiency ratio of up to 9.47 and a seasonal coefficient of performance of up to 5.20.

The Chinese manufacturer said its new heat pump has a coefficient of performance of up to 5.3 and a maximum heating capacity of 16 kW. It can reportedly achieve a topwater output temperature of 80 C.

The Chinese manufacturer said its new heat pump has a coefficient of performance of 4.2 at 7 C and a maximum heating capacity of 9.1 kW. It can reportedly achieve a topwater output temperature of 75 C.

The new products are intended for commercial applications and and multi-dwelling buidlings. They have a size of 20 kW to 30 kW and use R290 as the refrigerant.