The immersion heater is a convenient and popular appliance across homes, offices, and service areas for quick water heating. Due to the high-risk nature of the device—operating directly with electricity while immersed in water—strict compliance with the Legal Regulations for Immersion Heaters in Vietnam is an absolute prerequisite before any production, import, or distribution activity in the Vietnamese market.
See more: Capacity Profile Of Phuc Gia Laboratory Corporation
Table 1: Procedures for Implementing Licenses for Immersion Heaters

I. What is an Immersion Heater?
The immersion heater (or electric heating rod) is a household electrical appliance designed for rapid water heating by directly immersing its element into the fluid. While simple and commonly used in homes and offices, its basic structure—which includes a resistance heating element, insulated handle, and control switch—places it under high scrutiny.
Modern units often feature critical safety mechanisms like anti-overheating or boil-dry protection. Given the inherent risks associated with high power and direct immersion in water, all components and features must rigorously satisfy the mandatory safety and performance requirements dictated by the Legal Regulations for Immersion Heaters in Vietnam.

Given that immersion heaters operate at high power and are in direct contact with water, they are classified as high electrical risk devices. Consequently, their production, import, and distribution must rigorously adhere to all legal requirements concerning quality, electrical safety, conformity certification and declaration, and energy labeling. Full compliance with the Legal Regulations for Immersion Heaters in Vietnam is the only way for enterprises to ensure their product operates safely and legally before being distributed to consumers.
Table 2: Testing Requirements for Immersion Heaters

II. Legal Regulations for Immersion Heaters in Vietnam
1. Procedures for Implementing Licenses for Immersion Heaters
a) For Imported Immersion Heaters
| MANAGING MINISTRY | IMPORTED IMMERSION HEATERS | |
| Implementing Steps | Authorizing/Implementing Body | |
| Ministry of Science and Technology | Step 1: State control registration (*) | Local Department of Standards, Metrology and Quality / Department of Science and Technology where the declaration is opened |
| Step 2: Regulation conformity testing | Phuc Gia® | |
| Step 3: Regulation conformity certification (**) | Phuc Gia® | |
| Step 4: Submit the certificate of conformity and related documents to the registration authority from Step 1 | The enterprise submits the dossier to the Local Department of Standards, Metrology and Quality / Local Department of Science and Technology where the declaration is opened | |
| Step 5: Affix the CR conformity stamp (Before circulating on the market) |
The enterprise self-implements after being licensed | |
Notes: Phuc Gia®: Phuc Gia Laboratory Corporation
(*) Online Submission: Submission for State Inspection is conducted online via https://vnsw.gov.vn/
(**) QCVN 4:2009/BKHCN Certification: Certification is conducted according to Method 5 or Method 7.
Method 5: Includes factory assessment, sample sealing, testing of a representative sample, Certificate (GCN) valid for 3 years, with periodic surveillance not exceeding once every 12 months.
Method 7: Includes batch inspection, sample sealing, testing of a batch representative sample, Certificate (GCN) only valid for the specific batch.
b) For Domestically Manufactured Immersion Heaters
| MANAGING MINISTRY | DOMESTICALLY MANUFACTURED IMMERSION HEATERS | |
| Implementing Steps | Authorizing/Implementing Body | |
| Ministry of Science and Technology | Step 1: Regulation conformity testing | Phuc Gia® |
| Step 2: Regulation conformity certification (*) | Phuc Gia® | |
| Step 3: Declaration of conformity | Local Department of Standards, Metrology and Quality / Department of Science and Technology (where the business is registered) | |
| Step 4: Affix the CR conformity stamp (Before circulating on the market) |
The enterprise self-implements after being licensed | |
Notes: Phuc Gia®: Phuc Gia Laboratory Corporation
(*) QCVN 4:2009/BKHCN Certification: Certification is conducted according to Method 5 or Method 7.
Method 5: Includes factory assessment, sample sealing, testing of a representative sample, Certificate (GCN) valid for 3 years, with periodic surveillance not exceeding once every 12 months.
Method 7: Includes batch inspection, sample sealing, testing of a batch representative sample, Certificate (GCN) only valid for the specific batch.
2. Legal Regulation Documents
| MINISTRY OF SCIENCE AND TECHNOLOGY | |
| Legal Regulation Documents | – Decision 2711/QĐ-BKHCN (30/12/2022) of the Ministry of Science and Technology (MOST) on announcing the list of Group 2 products and goods (mandatory quality inspection).
– Circular 01/2022/TT-BKHCN (16/02/2022) of MOST on amending Circular 07/2018/TT-BKHCN and Circular 08/2019/TT-BKHCN. – Circular 06/2020/TT-BKHCN (10/12/2020) of MOST guiding and implementing Decrees 132/2008/NĐ-CP, 74/2018/NĐ-CP, 154/2018/NĐ-CP, and 119/2017/NĐ-CP. – Circular 02/2017/TT-BKHCN (31/03/2017) of MOST promulgating regulations on standard conformity declaration, regulation conformity declaration, and conformity assessment methods. – Circular 21/2016/TT-BKHCN (15/12/2016) of MOST promulgating Amendment 1:2016 to QCVN 4:2009/BKHCN – National Technical Regulation on Safety for Electrical and Electronic Equipment. – Circular 28/2012/TT-BKHCN (30/09/2009) of MOST promulgating regulations on standard conformity declaration, regulation conformity declaration, and conformity assessment methods. – Circular 21/2009/TT-BKHCN (30/9/2009) of MOST promulgating and implementing the National Technical Regulation on Safety for Electrical and Electronic Equipment (QCVN 4:2009/BKHCN). |
3. Types of Immersion Heaters within the Scope of Application
| Ministry of Science and Technology | |
| Types of Immersion Heaters within the Scope of Application | Electric immersion heaters for household and similar purposes, with a rated voltage not exceeding 250 V (including electric heating rods) – HS Code: 8516.10.30. |
4. Currently Effective Regulations/Standards
| Ministry of Science and Technology | |
| Currently Effective Regulations/Standards | QCVN 4:2009/BKHCN and Amendment 1:2016 QCVN 4:2009/BKHCN (Specifically applicable according to TCVN 5699-2-74:2010 (IEC 60335-2-74:2009) – National Standard on Household and similar electrical appliances – Safety – Part 2-74: Particular requirements for electric heating rods). |
5. Important Notes in Importation, Manufacturing, and Business Policies under the Legal Regulations for Immersion Heaters in Vietnam
| Ministry of Science and Technology | |
| Important Notes | – Testing and certification must be carried out by a testing and certification organization designated, registered, or recognized by the Ministry of Science and Technology (MOST).
– Domestic enterprises manufacturing or importing [Note: referring to relevant liquid heating appliances like stored water heaters] in Vietnam, after obtaining conformity certification, must register the declaration of conformity at the local Sub-Department of Standards, Metrology, and Quality (STAMEQ) where the enterprise is registered, before circulating the product in the market. – The Certificate of Conformity is valid for no more than 3 years. The enterprise must retain records for no less than 10 years from the date the last product of the registered type/model was shipped. – Additional requirements may apply to equipment designed for use in vehicles, ships, or aircraft. – Additional requirements may be specified by competent authorities regarding health, occupational safety, and similar competent bodies. – The appliance must be marked with the maximum and minimum immersion depth. This depth can be indicated only by straight lines, provided they are explained in the instructions (marking is not required if the appliance is designed to float). |
III. PHUC GIA LABORATORY CORPORATION: COMPREHENSIVE SERVICES FOR IMMERSION HEATERS
| ORD | PHUC GIA® CAPABILITIES | Ministry of Industry and Trade | Ministry of Science and Technology |
| 1 | Testing Capabilities (Certification/ Designation) |
Phuc Gia has been designated and the designation remains valid. (Detail) | Phuc Gia® has been designated for testing and certification of electrical safety and electromagnetic compatibility (EMC) and remains effective/valid. (Detail) |
| 2 | Quotation and Duration for Tests | The official listed quotation is available here. | |
| 3 | Support | – Consultancy on product quality improvement;
– Free 24/7 consultation service; – Consultancy on product quality improvement. |
|
| 6 | Contact for Services |
For assistance with testing/certification, please contact:
Address: ICD Long Bien, No. 01 Huynh Tan Phat, Sai Dong B Industrial Park, Long Bien Ward, Hanoi |
|
| Note: Phuc Gia Laboratory Corporation directly performs testing and certification for immersion heaters according to the regulations of the Ministry of Science and Technology (MOST). | |||
RELATED POSTS:
- Guidance on Electrical Safety Testing for Immersion Heaters under QCVN 4:2009/BKHCN
- Conformity Certification for Electric Heating Rods
- Guidance on Electrical Safety Testing for Electric Kettles under QCVN 4:2009/BKHCN
- Declaration of Food Safety for Rapid-Boil Kettles
- Conformity Certification for Rapid-Boil Kettles
For more details, please contact us at:
PHUC GIA LABORATORY CORPORATION
PHUC GIA CERTIFICATION CENTER
PHUC GIA INSPECTION TESTING CENTER
Address: ICD Long Bien, No. 01 Huynh Tan Phat, Sai Dong B Industrial Park, Long Bien Ward, Hanoi City, Vietnam.
Hotline: 0981 996 996/ 0982 996 696/ 024 7779 6696
E-mail: lab@phucgia.com.vn/cert@phucgia.com.vn/info@phucgia.com.vn
Website: phucgia.com.vn
Working time: Monday to Friday 8:00 – 18:30; Saturday 8:00 – 12:00
