HS code · 6-digit subheading
HS Code 8516.21 – Heating apparatus; electric storage heating radiators
HS code 8516.21 is the 6-digit subheading for heating apparatus, electric storage heating radiators. It is used for night storage heaters, electric thermal storage radiators, ceramic core storage heaters, dynamic storage heaters and static storage heaters.
What HS 8516.21 covers
This HS code specifically covers electric storage heating radiators, which are designed to absorb and store thermal energy, typically during off-peak electricity hours, and then release it gradually to heat spaces. These devices are particularly prevalent in regions with time-of-use electricity tariffs, offering an energy-efficient heating solution for residential and commercial buildings. International trade in these radiators is driven by energy policy, climate conditions, and the demand for sustainable heating. Importers are typically distributors, construction firms, and retailers in colder climates or areas with specific energy management strategies. Exporters are often specialized manufacturers of heating technology. Key aspects influencing trade include insulation efficiency, heat retention capacity, advanced control systems (thermostats, timers), and compliance with regional energy efficiency and safety standards, which are critical for market acceptance and trade dynamics.
- Covers
- Night storage heaters
- Electric thermal storage radiators
- Ceramic core storage heaters
- Dynamic storage heaters
- Static storage heaters
- High-heat retention storage heaters
- Examples
- Dimplex Quantum
- Creda TSRE
- Elnur Gabarron
- ATC Lifestyle
- Fischer Future Heat
Codes often confused with 8516.21
Common mistake. Distinct from other electric space heaters (851629) because of their specific 'storage' function, which allows them to store heat for later release rather than heating instantaneously.
Top exporters and importers of HS code 851621, 2025
In 2025, the largest exporter of HS code 851621 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.
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 8516.21
Brazil does not split HS 8516.21: its NCM code is 8516.21.00.
All Brazil NCM codes in heading 85.16 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 8516.21
What is HS code 851621?
HS code 851621 is a 6-digit subheading in the Harmonized System that covers: Heating apparatus; electric storage heating radiators. This HS code specifically covers electric storage heating radiators, which are designed to absorb and store thermal energy, typically during off-peak electricity hours, and then release it gradually to heat spaces. These devices are particularly prevalent in regions with time-of-use electricity tariffs, offering an energy-efficient heating solution for residential and commercial buildings. International trade in these radiators is driven by energy policy, climate conditions, and the demand for sustainable heating. Importers are typically distributors, construction firms, and retailers in colder climates or areas with specific energy management strategies. Exporters are often specialized manufacturers of heating technology. Key aspects influencing trade include insulation efficiency, heat retention capacity, advanced control systems (thermostats, timers), and compliance with regional energy efficiency and safety standards, which are critical for market acceptance and trade dynamics.
What products fall under HS code 851621?
Night storage heaters, Electric thermal storage radiators, Ceramic core storage heaters, Dynamic storage heaters, Static storage heaters, High-heat retention storage heaters
What are common misclassifications for HS code 851621?
Distinct from other electric space heaters (851629) because of their specific 'storage' function, which allows them to store heat for later release rather than heating instantaneously.
Which countries are the top exporters of goods under HS code 851621?
In 2025, the top exporters of HS code 851621 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 goods under HS code 851621?
In 2025, the top importers of HS code 851621 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.
How is HS code 851621 structured?
HS code 851621 is a 6-digit subheading under the Harmonized System. The first 2 digits (85) identify the chapter, digits 3-4 (16) identify the heading, and digits 5-6 (21) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 851621?
In Brazil, HS code 851621 is NCM 8516.21.00. The last two digits are 00 because Brazil does not split this HS code further.