U.S. imports of Heating Equipment (Except Warm Air Furnaces) (NAICS 333414) totaled $77.2M in August 2026, imported from 68 countries.
Importers of Heating Equipment (Except Warm Air Furnaces) paid $12.3M in duties in August 2026, an average duty rate of 16.08% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataBoilers, radiators, baseboard heaters, and other non-furnace heating equipment occupy a distinct trade niche from forced-air systems, with cast-iron and steel construction grades driving significant classification differences at the HTS level. Hydronic heating systems and electric resistance heaters in this category are widely used in commercial and industrial buildings, and imports from European manufacturers — particularly for high-efficiency boiler systems — are a notable feature of this trade flow. Importers should be aware that certain heating appliances may require compliance with Department of Energy (DOE) efficiency standards before entry into US commerce.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
2.8K import shipments a month
Yes. The US Department of Energy sets minimum efficiency standards for many categories of commercial and residential heating boilers and water heaters. Importers must ensure that covered products meet applicable DOE standards before distribution in the US market, and some products require certification testing by an accredited laboratory.
Warm air furnaces — which heat and distribute air through ductwork — are classified separately under HTS headings for air heaters and hot-air distributors. Equipment in the 333414 category, such as boilers, radiators, and convectors, heats water or steam or uses radiant/electric resistance methods rather than forced-air distribution. Correct classification depends on the heating medium and distribution method, not just the end use.
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National industry 3 of 3 in naics industry 33341
National industry 333414 · $77.2M of $2.6B
Imports · August 2026
origin
China pays 24.5% duty; Italy 12.9%.
customs district
Census does not publish district detail for this classification system.
destination
Census publishes state breakdowns for NAICS to the 4-digit level only. See NAICS 3334 for those.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$77.2MYoY · free account
Exports
$76.5MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $919.2M of Heating Equipment (Except Warm Air Furnaces) and exported $716.6M.
Through August 2026. Source: U.S. Census Bureau.