China Updates Energy Efficiency Test Methods for Range Hoods & Bath Heaters

by  BlidFive

Country : China | Date : 2026-04-23

Overview

China has notified an important amendment to its national standard GB 29539-2025, which sets minimum allowable values and grades for energy efficiency in household and similar range hoods and A.C. electric ventilating fans. This Amendment No.1, currently a draft for comments, specifically updates the referenced technical standard for testing heating energy consumption in bath heaters. Exporters of these appliances to China must understand these revised testing protocols to ensure continued market access and compliance.

Key Details

• Country / Notifying Member: China
• Document Symbol: G/TBT/N/CHN/2084/Add.1
• Notification Date: 2026-04-23
• Comment Deadline: Not specified (document is a draft for comments)
• Expected Entry into Force: Not specified
• Objective: Energy efficiency, quality standards, consumer protection

What Is Being Regulated

This amendment impacts the regulation of "household and similar range hoods and A.C. electric ventilating fans." Specifically, it targets the test methods for "Heating Energy Consumption of Bath Heaters," which are covered under Appendix C of the GB 29539-2025 standard. The document does not specify HS codes or other product categories beyond these descriptions.

Key Requirements & Technical Changes

• The amendment revises Appendix C (Normative) "Test Method for Heating Energy Consumption of Bath Heaters" within GB 29539-2025.
• For the standard laboratory setup (C.1), the referenced standard is changed from GB/T 14806-2017 to GB/T 22769-2023.
• For the measurement method of radiant appliance temperature rise and power consumption (C.2), the referenced standard is changed from GB/T 14806-2017 to GB/T 22769-2023.
• For the measurement method of fan appliance forced convection temperature rise and power consumption (C.3), the referenced standard is changed from GB/T 14806-2017 to GB/T 22769-2023.

Trade Impact & Who Should Act

Manufacturers and exporters of household and similar range hoods, A.C. electric ventilating fans, and especially bath heaters, destined for the Chinese market, are directly affected. While the core energy efficiency limits of GB 29539-2025 are not altered by this specific amendment, the foundational test methods for compliance are changing. Non-compliance with the updated testing standard (GB/T 22769-2023) will pose a significant market-access risk for products requiring these energy efficiency certifications in China.