Solar Cooker Box Type refers to the renewable energy cooking appliance which makes use of
sun energy for cooking food without using any fuel at all. This appliance can be used in
domestic homes, communal kitchens, and other far-flung places where there is no power
supply. The process of cooking uses the principle of trapping solar radiation in an insulated box
to create heat that helps to cook the food.
Adherence to IS 13429 (Part 1):2020 establishes the key parameters for box-type solar cookers
according to Indian standards. The certification process includes assessment of the efficiency of
the cooker in terms of its thermal efficiency, heat storage capacity, material strength and safety
issues.
What is IS 13429 (Part 1): 2020
This is the Indian Standard for Solar Cookers used for solar-based cooking applications. It
specifies the thermal performance and safety requirements to ensure efficient and reliable
cooking using solar energy. As per the BIS (Bureau of Indian Standards), these solar cookers
are:
- Tested for cooking performance
- Checked for thermal efficiency
- Assessed for insulation performance
- Evaluated for durability
Solar Thermal Cooker BIS Approval Eligibility Guide
BIS authorisation under IS 13429 (Part 1): 2020 is required for businesses involved in
manufacturing, importing, or supplying box-type solar cookers in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the Solar Heat Box Cooker are
covered under QCO.
- Foreign Manufacturers - Need certification to export the products to India.
- Importers/Brand Owners - Must ensure that the products are BIS-certified before sale.
- Sellers/Distributors - Should only sell certified Solar Cookers.
Testing and Inspection Requirements
To ensure consistent quality of Solar Cooker (Box Type), the Bureau of Indian Standards
outlines the minimum requirements under IS 13429 (Part 1): 2020. This certification ensures
that manufacturers produce solar cookers with proper thermal efficiency, insulation quality,
durability and safe cooking performance.
The BIS testing parameters and quality checks for the Solar Cooker are listed below:
BIS License Steps for Domestic Solar Cooker

The BIS Authorisation process ensures that the Solar Thermal Box Cooker meet the required
safety standards. This process is set by the Bureau of Indian Standards (BIS) and includes the
following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for physical properties, moisture content, chemical characteristics, dimensional stability, and overall material performance.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: The Bureau of Indian Standards officials inspect the manufacturing units to verify the production process, safety measures, and quality control system.
- Grant of BIS License:Upon successful verification of all requirements, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: Once approved, the manufacturer can use the ISI mark on the product with a CM/L number, confirming that the product meets BIS standards.
IS 13429 (Part 1): 2020 license Documents Checklist
| Document Category | Documents Required |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| Raw Material Details | List of Raw Materials, Supplier Details, Raw Material Invoices, Raw Material Test Certificates |
| Testing & Quality Control | List of Testing Equipment, Calibration Certificates, QC/Lab In-charge Appointment Letter & Qualification |
| Production Details | Annual Installed Capacity, Last Year Production Value |
| Product & Packaging Details | Quantity per Package, Nature of Packing, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| Brand & Certification Documents | Trademark / Brand Certificate, Consent Letter from BIS Recognized Laboratory |
| Additional Documents | Weekly Off Details, Hygiene Document (if applicable), Relaxation Letter (if applicable), Any Other Relevant Document |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
The Foreign manufacturers are required to appoint an Authorized Indian Representative (AIR) in India. The representative is the local point of contact for the Bureau of Indian Standards (BIS) and takes care of all rules and compliance work in India.
Marking Requirements & License Validity
Marking Requirements
Once the Solar Cooker gets certified by BIS, the ISI Mark must be written clearly and
permanently either on its packaging or on the product. The mark should also carry information
about the identity of the manufacturer and the CM/L number. Additional details are provided
below:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 13429 (Part 1): 2020 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note: Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
sun cooker BIS License Validity and renewal details
| particulars | Details |
|---|
| Initial Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillane | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
Fee breakdown for eco-friendly solar cooker BIS Approval
The cost of BIS Approval for a coir felt sheet includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- The marking fee is determined based on the product category and production volume (MSME benefits may apply).
- Testing charges are to be paid directly to BIS-recognised laboratories.
- Consultancy fees can vary depending on product type and factory location.
Conclusion
The certification procedure for Solar Cooker (Box Type) using the BIS based on IS 13429 (Part
1): 2020 standard will help ensure the systematic control of quality, design, and performance of
the thermal aspect during production. It will ensure that there will be no problems regarding the
standards, such as efficient heat retention, good insulation efficiency, design strength, and
effective use of solar energy. Further, it is expected to reduce any inefficiencies related to heat
losses, poor performance, and inefficient use under different solar radiation.
It is important to note that certification according to this standard will provide regulatory approval
and will help with compliance for manufacturers involved in the renewable energy industry.
EVTL India assists applicants in obtaining certification and reduces procedural challenges. They
provide support during documentation, testing processes, and certification application
procedures.