Product classification
HS code for Storage radiator: 8516.21
Heating apparatus, electric storage heating radiators.
Classification of storage radiator under HS 8516.21
Electric storage heating radiators are classified under HS code 8516.21. These devices are designed to consume electricity during off-peak hours, converting it into heat stored in a high-density medium, such as ceramic bricks or specialized salts, for release later. This specific subheading is nested under heading 8516, which covers electric instantaneous or storage water heaters and space heating apparatus. The storage aspect is the defining technical characteristic that separates these units from standard convection or infrared heaters. Proper classification depends on the unit's ability to retain thermal energy for delayed distribution, a feature common in energy-efficient residential heating systems. The Harmonized System distinguishes these from other electric space heaters because of their unique operational cycle and internal heat-retention components.
- Covers
- Electric night storage heaters
- Ceramic core storage radiators
- Fan-assisted electric storage heaters
- Thermal brick storage heaters
- Also under 8516.21
- Dimplex Quantum
- Creda TSRE
- Elnur Gabarron
- ATC Lifestyle
- Fischer Future Heat
Codes often confused with 8516.21
Common mistake. The most common misclassification occurs with HS code 8516.29, which covers other electric space heating apparatus like convection heaters, oil-filled radiators (without storage capacity), and infrared heaters. If the unit does not have a specific thermal storage medium designed for off-peak use, it belongs in 8516.29. Additionally, non-electric radiators used for central heating are classified under 7322.19. Importers must ensure the technical specifications confirm the storage capability to justify the use of 8516.21.
Top exporters and importers of HS 851621 (the code used for storage radiator), 2025
In 2025, the largest exporter of HS 851621 (the code used for storage radiator) in UN Comtrade data was China, with 29% of world exports; the largest importer in UN Comtrade data was the United States, with 18% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 851621, not only storage radiator.
Top exporters 2025 · share of world exports
- 1 China $31M 29% of world exports
- 2 Lithuania $19M 18% of world exports
- 3 Germany $18M 17% of world exports
World total: $107M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $24M 18% of world imports
- 2 United Kingdom $24M 18% of world imports
- 3 France $21M 16% of world imports
World total: $135M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for storage radiator
Brazil classifies storage radiator under NCM 8516.21.00: HS 8516.21 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about storage radiator
What is the HS code for Storage radiator?
The HS code for Storage radiator is 851621 (Heating apparatus; electric storage heating radiators).
How do I classify Storage radiator for customs?
Storage radiator is classified under HS code 851621 — Heating apparatus; electric storage heating radiators. This is a 6-digit subheading level code.
What is the HS code for electric storage radiators?
The HS code for electric storage heating radiators is 8516.21.
How do storage radiators differ from standard electric heaters in HS codes?
Storage radiators (8516.21) contain a medium to store heat for later release, while standard electric heaters (8516.29) provide immediate heat without a storage cycle.
Which countries are the top exporters of storage radiator (HS 851621)?
In 2025, the top exporters of HS 851621 (the code used for storage radiator) in UN Comtrade data were China ($31M, 29% of world exports), Lithuania ($19M) and Germany ($18M). World exports came to about $107M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of storage radiator (HS 851621)?
In 2025, the top importers of HS 851621 (the code used for storage radiator) in UN Comtrade data were the United States ($24M, 18% of world imports), the United Kingdom ($24M) and France ($21M). World imports came to about $135M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Storage radiator the same in all countries?
The base HS code 851621 for Storage radiator is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for storage radiator in Brazil?
In Brazil, storage radiator (HS 851621) is classified under NCM 8516.21.00.