Qingdao Haiang HVAC Equipment Co., Ltd.,

Qingdao Haiang HVAC Equipment Co., Ltd., founded in 1958, specializes in the R&D and manufacturing of gas-fired heating and hot water boilers, condensing boilers, and modular boilers, with an annual production capacity of 120,000 units. In partnership with Italy’s Cozmo Group, the company is committed to delivering international-standard, high-quality, low-carbon, and environmentally friendly gas thermal energy equipment solutions.

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Quality Assurance

Quality

8-Step Inspection for Exceptional Quality

POP

Ignition System Inspection

100% Ignition Success Rate in accordance with national standards

RP

Heating Power Inspection

Stable blue flame with smooth, responsive power control.

CP

Airtightness Inspection

Excellent airtightness to prevent gas leakage and ensure safe operation.

FLP

Burner Inspection

Fast flame propagation, no flashback, and excellent combustion performance.

HI

Heat Exchange Inspection

Checks heat transfer performance and water system compliance.

PRP

Safety Protection Inspection

Highly responsive safety protection that automatically cuts off the gas supply within 30 seconds of accidental flameout.

AP

Appearance Inspection

Clean, flawless finish with no scratches.

WP

Final Performance Testing

Normal operation, full compliance with national standards, and complete product markings.