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If you are manufacturing or importing a mini domestic water heater that operates on piped natural gas, BIS certification is not optional. It is a legal requirement. Before the product reaches a consumer’s home, it must meet the safety conditions laid down under IS 17150:2019 and must carry the ISI mark.
This standard exists because gas-based water heaters are sensitive appliances. Even a small fault in design or material can lead to serious safety issues. BIS certification is meant to prevent that.
You cannot rely on self-declaration. BIS approval is mandatory.
IS 17150:2019 applies only to mini domestic water heaters designed for use with piped natural gas (PNG). These are small-capacity water heaters intended for household use.
The standard focuses on:
It does not apply to electric water heaters, LPG-only heaters, commercial or industrial gas heating systems.
If your product uses PNG and heats water for domestic purposes, BIS will assess it under this standard.
Under the Bureau of Indian Standards Act 2016 certain products are notified for compulsory certification. Gas appliances used in homes fall under this category
For mini PNG water heaters:
Without the ISI mark:
This is not a branding requirement. It is a safety regulation.
BIS does not approve a product based only on documents. The evaluation is technical and physical.
BIS checks:
The product must pass testing exactly as per IS 17150:2019.
If the product fails even one safety parameter, certification is not granted.
When you apply for ISI mark registration, BIS expects complete and consistent documentation.
Commonly required documents include:
For foreign manufacturers:
All documents must match the actual factory setup.
This is how the process generally moves
You confirm that your product falls under IS 17150:2019 and requires ISI certification
Product samples are sent to a BIS-recognised laboratory in India. Testing is carried out strictly as per the standard
You submit the BIS application along with documents and test reports
A BIS officer visits the manufacturing unit. The officer checks production capability, quality control, and testing arrangements.
BIS may seal or draw samples during inspection for independent verification.
If BIS raises observations you must respond with corrective action or clarification
Once BIS is satisfied the ISI license is issued
Only after this can you mark the product with the ISI symbol
BIS ISI Mark Registration for Stationary storage type electric water heaters IS 2082: 2018
BIS charges are fixed, but the total cost depends on the product and testing.
Government fees include:
Laboratory testing charges vary depending on test scope and samples:
Other expenses may include:
In most cases manufacturers should expect a total cost between ₹80,000 and ₹1,80,000
The ISI license is generally issued for one year initially.
It can be renewed for up to five years.
During the license period:
Certification must be maintained continuously
Some problems appear repeatedly:
These issues usually delay certification.
If you are manufacturing or importing a mini domestic water heater that uses piped natural gas ISI mark registration under IS 17150:2019 is mandatory. There is no alternative route
The process involves testing, inspection and ongoing compliance. It is technical and must be handled carefully. If you want support that focuses on accuracy, documentation and timely approval Agile Regulatory can assist you through the BIS ISI mark registration process from start to license grant.
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
Get Instant Solution By an Expert Advisor
(4.8)
We simplify compliance through a proven 4-step process: Consultation, Documentation, Submission, and certification. From understanding requirements to getting final approvals, we deliver a smooth, timely, and fully compliant journey for your business.
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