💾 Data Updated: Latest version • Last updated: December 09, 2025

8403.10.00.00 - Boilers 🖩

Details

FieldValue
Unit of QuantityNo.
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)N/A
Column 2 Rate of Duty45%
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

Heading 8403.10.00.00 specifically classifies central heating boilers, excluding those designed for steam generation as described in heading 8402. These are boilers primarily intended for the circulation of hot water or steam to provide space heating for buildings. They encompass a range of designs, from residential furnaces to larger units for commercial and industrial heating systems, but their core function is the generation and distribution of heat for environmental control.

Within the broader heading 8403, this subcategory is distinguished from its sibling, 8403.90.00.00, which covers only the parts and accessories of central heating boilers. While 8403.10.00.00 pertains to the complete, operational boiler units themselves, 8403.90.00.00 would include components like heat exchangers, burners, pumps, controls, and casings when imported separately.

As this is a leaf node within the HTS database, there are no further subcategories under 8403.10.00.00. Therefore, classification within this heading relies on identifying the unit as a central heating boiler based on its primary purpose of providing space heating. Key considerations for classification include the boiler's design, its capacity, and its intended application in heating systems.

Frequently Asked Questions

›What is HTS code 8403.10.00.00?
HTS code 8403.10.00.00 covers Boilers under the US Harmonized Tariff Schedule. It falls under Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
›What products are classified under 8403.10.00.00?
This classification covers Boilers. It is a subcategory of Central heating boilers (other than those of heading 8402) and parts thereof: (8403).
›What is the import duty rate for 8403.10.00.00?
The general rate of duty for HTS 8403.10.00.00 is Free. The Column 2 rate is 45%.
›What unit of quantity is used for 8403.10.00.00?
Imports under HTS 8403.10.00.00 are measured in No..

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