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SITCSection 7
U.S. imports of furnace burners including combination burners (nes) (SITC 74123) totaled $8.2M in April 2026, traded with 33 countries.
Importers of Furnace Burners Including Combination Burners (NES) paid $692K in duties in April 2026 — an effective duty rate of 10% on $6.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataCombination burners — capable of firing on gas, liquid fuel, or a mixture of both — and other furnace burners not captured by more specific SITC headings fall under SITC 74123. These versatile units are favored in industries where fuel-switching flexibility is operationally valuable, such as glass manufacturing, cement production, and large-scale food processing. The NES scope means importers must first confirm the burner does not qualify as a liquid-fuel-only unit under SITC 74121 before using this heading. Section 301 tariff applicability should be assessed at the HTS subheading level based on declared origin.
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A combination burner is engineered to operate on more than one fuel type — typically natural gas and fuel oil — either simultaneously or by switching between them. A burner designed exclusively for liquid fuel belongs under SITC 74121. The manufacturer's specification confirming multi-fuel capability is the primary evidence for classifying a unit as a combination burner under SITC 74123.
Glass furnaces, rotary cement kilns, and large industrial boilers are among the most common end-use applications for imported combination burners, because these processes benefit from the ability to switch fuels in response to price differentials or supply disruptions. Importers serving these sectors often source combination burners from specialized European or Asian manufacturers with established furnace-engineering expertise.
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Monthly import values over time