Panasonic's new residential CO₂ air-to-water heat pump:coeff of performance=6.1(facebook.com)

Panasonic has launched a residential CO₂ (R744) air-to-water heat pump range designed for efficient hot water production, even in low ambient temperatures, using natural carbon dioxide refrigerant. The system offers 4.0 kW or 6.0 kW outdoor units with 250–400 L tank options, up to COP 6.1 performance, around 37 dB(A) operation, PV integration, and a 10-year warranty.