HS Code for Hot water boilers

Hot water boilers, specifically those designed as super-heated water boilers, are classified under HS code 8402.20. This heading covers steam or other vapor generating boilers. While subheadings 8402.11 and 8402.12 cover steam-generating boilers based on their production capacity, 8402.20 is dedicated to super-heated water boilers. These are industrial-grade units designed to heat water to temperatures exceeding its normal boiling point (100°C) at atmospheric pressure without necessarily turning it into steam within the boiler itself. This is achieved by maintaining the system under high pressure. The classification is based on the mechanical function of the boiler in an industrial or power-generation context, distinguishing it from domestic heating appliances. The construction typically involves heavy-duty steel pressure vessels and specialized firing equipment.

Products Included

• Industrial super-heated water boilers
• High-pressure hot water (HPHW) generators
• District heating plant boilers
• Pressurized water boilers for industrial processing
• Marine super-heated water boilers

Common Misclassification

The most common misclassification is with HS code 8403.10, which covers central heating boilers. The distinction lies in the application and design: 8403 is for domestic or commercial space heating, whereas 8402.20 is for industrial super-heated water. Another error involves HS code 8419.11 or 8419.19, which covers instantaneous or storage water heaters. Those units are not designed to withstand the high pressures required for super-heated water and lack the vapor-generating potential of heading 8402.

FAQ

What is the HS code for hot water boilers?

Industrial super-heated hot water boilers are classified under HS code 8402.20, while central heating boilers are under 8403.10.

Does this code include electric water heaters?

No, electric instantaneous or storage water heaters are classified under HS code 8516.10.