Aug 14, 2025
To better align with fluctuations in real-world operating conditions and enhance the energy efficiency performance of our units—ensuring more reliable and optimized products and services for every customer—Hotran conducted a rigorous three-day efficiency test on its self-developed 60HP water-source heat pump unit. The testing took place from July 14–16 at a national-level laboratory center in Huzhou, Zhejiang Province, in strict compliance with the Chinese National Standard GB/T 25861-2023: "Steam Compression Cycle Water-Source High-Temperature Heat Pump Units."

An outstanding energy efficiency performance : COP=4.1!
The final test results were highly encouraging:
These valuable first-hand results precisely map the unit’s performance capabilities and efficiency patterns across diverse environments.


The unit’s performance exceeded national standards, demonstrating exceptional stability during variable operating conditions. These results provide critical confidence for our next phase: driving energy-saving retrofits in the market.