Safety of Household, Commercial and Similar Electrical Appliances
Thermal Storage Room Heaters
Strategic Recommendations for Thermal Storage Room Heaters — IS 302 (Part 1): 2024
Start BIS Certification in Advance of Deadlines
Manufacturers and importers should initiate BIS certification under Scheme-I well before the phased enforcement dates (1 October 2026 / 1 January 2027 / 1 April 2027) to accommodate testing, inspection, and approval timelines.
Engage ERA Compliance, Experts
ERA’s compliance team provides end-to-end support for BIS certification, including application filing, coordination with BIS-recognised laboratories, factory audit readiness, corrective action support, and ISI marking approval to ensure smooth and timely compliance.
Reach Out for Support
For product eligibility checks, documentation guidance, and certification timelines, stakeholders may directly connect with ERA’s compliance team.
📧 cs@eraglobal.co.in | 📞 +91 9599296331 | 💬 WhatsApp Support Available
Track Gazette Notifications and Amendments
Stay updated on future Government notifications, BIS amendments, and enforcement changes by regularly tracking Gazette publications and subscribing to the ERA Newsletter for timely regulatory alerts and compliance updates.
Ensure ISI Marking and Product Compliance Control
Only BIS-certified thermal storage room heaters conforming to IS 302 (Part 1): 2024 and bearing the ISI Mark should be manufactured, imported, or sold in India. Non-certified or transitional stock must be strictly segregated and managed as per the notified provisions.
| Section | Details |
|---|---|
| Product Name | Thermal Storage Room Heaters |
| Applicable Indian Standard (IS) No. | IS 302 (Part 1): 2024 / IEC 60335-1:2020. |
| Title of Indian Standard | Household and Similar Electrical Appliances — Safety, Part 1: General Requirements. |
| Notification & Amendments | Safety of Household, Commercial and Similar Electrical Appliances (Quality Control) Order, 2026 – S.O. 1739(E), dated 6 April 2026, issued by DPIIT, Ministry of Commerce and Industry; supersedes the Safety of Household, Commercial and Similar Electrical Appliances (Quality Control) Order, 2025 (except for prior actions). |
| Implementation Dates (Category-wise) | General Enterprises: 1 October 2026; Small Enterprises: 1 January 2027; Micro Enterprises: 1 April 2027. |
| Objective & Scope | To ensure safety, electrical reliability, and performance of thermal storage room heaters used in household, commercial, and similar applications by prescribing requirements related to electrical insulation, temperature control, overheating protection, construction safety, and operational performance. |
| Products Covered | Thermal storage room heaters and similar electrically operated heating appliances are designed for indoor heating applications within prescribed voltage limits. |
| Exemptions | Goods manufactured exclusively for export; limited exemption for R&D imports up to 200 units per year (non-commercial use); declared pre-implementation stock allowed for sale up to six months, subject to conditions.. |
| Special Coverage | Covers appliances operating up to 250V (single-phase) and 480V (other appliances), including direct current supplied and battery-operated variants; applicable across household, commercial, and similar usage environments. |
| Industries Impacted | Electrical appliance manufacturers, heating equipment manufacturers, OEM suppliers, importers, distributors, retailers, commercial infrastructure suppliers, and e-commerce platforms. |
| Mandatory Compliance | Products must conform to IS 302 (Part 1): 2024 and bear the ISI Mark under BIS certification (Scheme-I) before manufacture, import, sale, or distribution in India. |
| Next Steps for Stakeholders | Identify applicable heater models; initiate BIS application; conduct testing in BIS-recognised labs; ensure compliance with safety requirements; complete factory inspection; obtain BIS licence; affix ISI Mark before enforcement deadlines. |
| Certification, Enforcement & Legal Framework | Certification and enforcement are administered by BIS under Sections 16, 17, and 25(3) of the BIS Act, 2016, along with Scheme-I of BIS (Conformity Assessment) Regulations, 2018. |
| Penalty for Non-Compliance | Imprisonment up to 2 years, Fine starting from ₹2 lakh up to ten times the value of goods, Additional penalties for continuing non-compliance, and seizure of non-certified products. |
| Amendment Clause | The latest version of IS 302 (Part 1), including amendments notified by BIS from time to time, applies automatically from the date of such notification. |
| Conclusion | BIS certification for Thermal Storage Room Heaters is mandatory under the 2026 QCO from the notified enforcement dates. Timely compliance is essential to ensure uninterrupted market access and avoid regulatory penalties. |
| References/Annexures | Gazette Notification S.O. 1739(E) dated 6 April 2026; BIS Act, 2016; BIS (Conformity Assessment) Regulations, 2018; IS 302 (Part 1): 2024. |
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Notification
Thermal Storage Room Heaters have been brought under mandatory quality control through the Safety of Household, Commercial and Similar Electrical Appliances (Quality Control) Order, 2026, notified vide S.O. 1739(E) dated 6 April 2026 by the Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry. This Order supersedes the earlier Safety of Household, Commercial and Similar Electrical Appliances (Quality Control) Order, 2025, except for actions taken prior to such supersession. The regulation mandates compliance with IS 302 (Part 1): 2024, aligned with IEC 60335-1:2020 standards.
Overview
Thermal storage room heaters are designed to store thermal energy during off-peak hours and release heat gradually, making them energy-efficient heating solutions for residential and commercial environments. Given their continuous operation, high-temperature exposure, and electrical load characteristics, these appliances must comply with stringent safety and performance requirements. IS 302 (Part 1): 2024 prescribes essential parameters such as electrical insulation, thermal protection, mechanical strength, construction safety, and operational reliability to prevent hazards such as overheating, electric shock, or fire risks.
Objective & Scope
The regulatory framework aims to ensure that thermal storage room heaters used in India meet standardized safety and performance benchmarks, thereby safeguarding users and infrastructure. The scope includes the manufacture, import, sale, and distribution of such appliances across household, commercial, and similar applications within specified voltage limits. The regulation applies uniformly to conventional electric as well as battery-operated or DC-powered variants, ensuring comprehensive coverage across modern product configurations.
Products Covered
The coverage includes all types of thermal storage room heaters intended for indoor heating applications, including those used in residential buildings, offices, commercial establishments, and similar environments. Products must fall within the scope of IS 302 (Part 1): 2024 and operate within the defined voltage thresholds. The regulation ensures that all such appliances meet uniform safety, design, and performance requirements before being introduced into the Indian market.
Exemptions Provided
Limited exemptions are available under the Order, including products manufactured exclusively for export, research and development imports up to 200 units per year (non-commercial use), and declared pre-implementation stock which may be sold for up to six months from the applicable enforcement date, subject to prescribed conditions. These exemptions are conditional and require strict adherence to documentation and declaration requirements.
Industries Impacted
The regulation impacts a wide range of stakeholders, including manufacturers of heating appliances, OEM suppliers, importers, distributors, retailers, and e-commerce platforms dealing in electrical heating equipment. Commercial infrastructure developers and facility operators relying on such heating systems are also indirectly affected due to compliance-driven procurement requirements.
Mandatory Compliance Requirements
Manufacturers and importers are required to obtain BIS certification under Scheme-I, conduct product testing through BIS-recognised laboratories, ensure compliance with safety and construction requirements, and affix the ISI Mark on each compliant unit. Factory inspection, quality control systems, and ongoing surveillance are also part of the compliance framework to ensure consistent product quality.
Enforcement Timeline
As per the implementation schedule notified in S.O. 1739(E) dated 6 April 2026, compliance becomes mandatory from 1 October 2026 for general enterprises, 1 January 2027 for small enterprises, and 1 April 2027 for micro enterprises. These staggered timelines provide transitional flexibility; however, manufacturers and importers must ensure that certification, testing, and marking requirements are completed well in advance to avoid supply disruptions and regulatory non-compliance.
Next Steps for Stakeholders
Stakeholders should identify applicable product models, initiate BIS certification processes, align manufacturing and quality systems with IS requirements, and coordinate testing and inspection activities well before enforcement deadlines. Advance planning is critical to ensure an uninterrupted supply and avoid last-minute compliance bottlenecks.
Legal Provisions & Penalties
Certification and enforcement are administered by the Bureau of Indian Standards (BIS) under Sections 16, 17, and 25(3) of the BIS Act, 2016. Non-compliance attracts strict penal provisions including imprisonment up to two years, monetary fines starting from ₹2 lakh and extending up to ten times the value of goods, or both, along with additional penalties for continued violations.
Conclusion
Compliance with IS 302 (Part 1): 2024 and BIS certification is mandatory for Thermal Storage Room Heaters from the notified enforcement dates. Early compliance not only ensures uninterrupted market access but also strengthens product safety, reliability, and consumer trust in the Indian market.
Ready to start your certification journey?
Let us help you navigate regulatory challenges and achieve certification with ease. Leave us your details, and we’ll get back to you—or request a free consultation today.