What happens when a heat pump faces months of relentless frost and sub-zero temperatures? Power World took its system to Mohe, which is China's northernmost extreme cold testing ground to find out. Not in a lab, but through a full six months winter campaign.
Mohe: A Six Months Trial by Ice
Mohe endures seven months of snow cover, with daily lows often below -30℃ and historic records hitting -53℃. Under these conditions, Power World ran its heat pump continuously for the entire heating season. The system weathered prolonged freezing temperatures, repeated frosting/defrosting cycles, and heavy ice loads, yet the official test report confirmed zero fault related shutdowns throughout the entire period. No failures, no interruptions, just steady, reliable operation day after day, in the harshest real world environment.
From Extreme Validation to the H8 Helios Pro Series
The Mohe insights directly shaped the H8 Helios Pro Series,a full DC inverter monoblock heat pump built on the R290 natural refrigerant platform. The H8 achieves A+++ efficiency at both 35℃ and 55℃ water temperatures, delivering high seasonal performance even at harsh outdoor conditions.
AI Intelligent Defrost Technology automatically detects frost and reverses the four way valve for fast, efficient defrosting for shortening defrost cycles while keeping heating stable. Our 5 Stage Noise Reduction system ensures operation as low as 35 dB(A) .
Beyond our own Mohe trials, Power World's heat pumps also have been certified by third-party testing laboratory. And the official test report confirms zero fault-related shutdowns during heating operation, further validating its reliability in low ambient conditions.
Built for European Homes
The H8 delivers 75℃ instant hot water on demand, ensuring compatibility with radiators, underfloor heating, and existing systems.
Smart energy integration is built-in: PV Direct allows direct solar utilisation, while SG Ready enables automatic load shifting based on PV output or grid pricing. The system also complies with Germany's §14a EnWG, intelligently limiting power draw during peak hours to support grid stability.
Also, the centralised bottom connections and built-in hydraulic module simplify mounting and maintenance. The 7 inch capacitive touchscreen offers an intuitive interface, and Smart IoT Cloud provides real-time monitoring, remote diagnostics, OTA updates, and big data analytics, cutting service time and costs for users, dealers, and manufacturers.
Power World : 22 Years of Proven Expertise
With 22 years experience in air-source heat pump development and manufacturing, Power World continues to validate its technology through real-world testing in the harshest environments. The Mohe test is not just a milestone; it is the standard we build into every H8 unit for the European market.
