GB 30720-2025 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 30720-2025 | English | 200 |
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Minimum allowable values of energy efficiency and energy efficiency grades for gas cooking appliances
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| GB 30720-2014 | English | 85 |
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Minimum allowable values of energy efficiency and energy efficiency grades for domestic gas cooking appliances
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GB 30720-2025: Minimum allowable values of energy efficiency and energy efficiency grades for gas cooking appliances
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB30720-2025
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.010
CCS F 01
Replacing GB 30531-2014 and GB 30720-2014
Minimum Allowable Values of Energy Efficiency and Energy
Efficiency Grades for Gas Cooking Appliances
Issued on. FEBRUARY 28, 2025
Implemented on. MARCH 1, 2026
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 Energy Efficiency Grades... 5
5 Technical Requirements... 5
6 Test Methods... 6
Appendix A (normative) Test Method for the Thermal Efficiency of Steam Generators
and Steam-generating Type Steam Boxes... 7
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement for GB 30720-2014 Minimum Allowable Values of
Energy Efficiency and Energy Efficiency Grades for Domestic Gas Cooking Appliances and GB
30531-2014 Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for
Commercial Gas Cooking Appliances. In comparison with GB 30720-2014 and GB 30531-
2014, apart from structural adjustments and editorial modifications, the main technical changes
are as follows.
a) The scope of application of the Standard is modified (see Chapter 1; Chapter 1 of GB
30720-2014 and Chapter 1 of GB 30531-2014);
b) The definition and requirements of “evaluating values of energy conservation” are
deleted (see 3.2 of GB 30720-2014 and 3.2 of GB 30531-2014);
c) The energy efficiency grade requirements for domestic gas cooking appliances and
commercial gas cooking appliances are modified (see 4.1; 4.2 of GB 30720-2014 and
4.2 of GB 30531-2014);
d) The test methods are modified (see Chapter 5; Chapter 5 of GB 30720-2014 and
Chapter 5 of GB 30531-2014);
e) The inspection rules are deleted (see Chapter 6 of GB 30720-2014 and Chapter 6 of
GB 30531-2014).
Please be noted that certain content of this document may involve patents. The institution
issuing this document does not undertake the responsibility of identifying these patents.
This document was proposed by and shall be under the jurisdiction of Standardization
Administration of the People’s Republic of China.
The issuing of the previous versions.
---First issued in 2014 as GB 30720-2014 Minimum Allowable Values of Energy Efficiency
and Energy Efficiency Grades for Domestic Gas Cooking Appliances;
---This is the first revision, which incorporates the content of GB 30531-2014 Minimum
Allowable Values of Energy Efficiency and Energy Efficiency Grades for Commercial
Gas Cooking Appliances.
Minimum Allowable Values of Energy Efficiency and Energy
Efficiency Grades for Gas Cooking Appliances
1 Scope
This document specifies the energy efficiency grades, technical requirements and test methods
for gas cooking appliances.
This document is applicable to domestic gas stoves and integrated stoves with a rated heat load
of not greater than 5.23 kw using town gas (hereinafter collectively referred to as “domestic gas
cooking appliances”), and is also applicable to cooking stoves with a rated heat load of not
greater than 60 kw, large pot stoves with a rated heat load of not greater than 80 kw, water-tank
type and steam-generating type steam boxes and steam generators with a rated heat load of not
greater than 80 kw (hereinafter collectively referred to as “commercial gas cooking
appliances”).
This document does not apply to gas cooking appliances used in means of transportation.
NOTE. the rated heat load of domestic gas stoves and integrated stoves refers to the heat load of a
single combustor; the rated heat load of cooking stoves, large pot stoves, steam boxes and
steam generators refers to the heat load of a single combustion unit.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB 16410 Domestic Gas Cooking Appliances
GB 35848-2024 Commercial Gas-burning Appliance
3 Terms and Definitions
The terms and definitions defined in GB 16410 and GB 35848, and the following are applicable
to this document.
3.1 minimum allowable values of energy efficiency for gas cooking appliances
Under the test conditions specified in this document, the minimum thermal efficiency that a gas
cooking appliance is allowed to achieve.
4 Energy Efficiency Grades
4.1 Domestic Gas Cooking Appliances
The energy efficiency grades of domestic gas cooking appliances are divided into 3 grades,
among which, Grade 1 signifies the highest energy efficiency.
5 Technical Requirements
5.1 Domestic Gas Cooking Appliances
The minimum allowable values of energy efficiency of domestic gas cooking appliances shall
comply with Grade 3 in Table 1.
6 Test Methods
6.1 Domestic Gas Cooking Appliances
6.2 Commercial Gas Cooking Appliances
6.2.1 The test method for the thermal efficiency of steam generators and steam-generating type
steam boxes shall be carried out in accordance with Appendix A.
6.2.2 The test conditions and test methods for water-tank type steam boxes, cooking stoves and
large pot stoves shall be in accordance with GB 35848.
Appendix A
(normative)
Test Method for the Thermal Efficiency of Steam Generators and Steam-generating
Type Steam Boxes
A.1 General Requirements
A.1.1 The test conditions shall satisfy the requirements of 6.14.1 in GB 35848-2024.
A.1.2 The thermal efficiency test device shall satisfy the requirements of 6.14.2.1 in GB 35848-
2024.
A.1.3 During the test, the outlet generating steam shall be connected to the steam inlet of the
water-steam separator. The schematic diagram of the structure of the water-steam separator is
shown in Figure A.1.
A.2 Test Methods
Follow the steps below to conduct the test.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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