Qingdao Haiang HVAC Equipment Co., Ltd.,

Qingdao Hiounce HVAC Equipment Co., Ltd., established in 1958, specializes in the R&D and manufacturing of gas-fired combination boilers, condensing boilers, and modular boilers—with an annual output of 120,000 units. In partnership with Italy’s Cosmo Group, the company is committed to delivering international-standard, high-quality, low-carbon, and environmentally friendly gas thermal energy equipment solutions.

Contact Info

ZunYao Series

ZunYao Series

Fast-Heating Electric Wall-Mounted Boiler / Open-Type Electric Heating Boiler

This product features an instant heating element design for rapid, silent, and stable heating with long-term durability. As it operates without combustion, it produces no exhaust gas, dust, or noise—making it exceptionally clean and eco-friendly, fully aligned with green, low-carbon heating principles.

No complex piping network is required, enabling flexible installation suitable for residential, office, and commercial applications. Multi-layer safety protection ensures reliable operation, while smart remote control supports real-time monitoring and alarm functions—allowing users to stay informed about equipment status at all times.

Additionally, the elegant glass panel enhances visual appeal, delivering a safe, efficient, comfortable, and hassle-free heating experience for home use.

  • Instant Heating Element
    High thermal efficiency, silent operation during heating, and durable performance.
  • No Exhaust Gas, No Dust, No Noise
  • Zero Pollution
    Aligned with the trend of green heating.
  • No Complex Piping Network Required
    Adaptable to multiple application scenarios.
  • Multi-Layer Protection
    Reduces operational risks.
  • Smart Remote Control
    Enables real-time monitoring and safety alerts.
  • Glass Panel Design
    Exceptional aesthetics.
Parameter HA-RD8 HA-RD10 HA-RD12 HA-RD16 HA-RD20
Dimensions (mm) 680×400×260 680×400×260 680×400×260 680×400×260 680×400×260
Voltage (V) 220 220 380 380 380
Current (A) 36 45 18 24 30
Heating Area 60–80 m² 80–100 m² 100–120 m² 140–160 m² 180–200 m²
Required Wire Gauge ≥6 mm² National Standard Copper Wire ≥10 mm² National Standard Copper Wire ≥6 mm² National Standard Copper Wire ≥6 mm² National Standard Copper Wire ≥10 mm² National Standard Copper Wire