U.S. imports of Instantaneous Gas Water Heaters (SITC 74181) totaled $53.2M in August 2026, imported from 16 countries.
Importers of Instantaneous Gas Water Heaters paid $6.0M in duties in August 2026, an average duty rate of 11.29% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataTankless, on-demand water heaters fueled by natural gas or propane heat water instantaneously as it flows through the unit, eliminating standby heat loss and reducing energy consumption compared with storage-type heaters. Residential and light-commercial models are widely traded, with product specifications — BTU input rating, flow rate, and venting configuration — driving both market segmentation and HTS classification decisions. Importers should confirm whether units meet applicable DOE energy-efficiency standards and local gas appliance codes before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
378 import shipments a month
Yes. The U.S. Department of Energy enforces minimum energy-efficiency standards for residential water heaters, including instantaneous gas models. Importers must ensure products meet the applicable energy factor or uniform energy factor requirements before distribution in the US market.
While venting type (direct-vent, power-vent, or indoor non-direct-vent) does not typically change the SITC or HTS classification, it significantly affects code compliance and installation eligibility under local building codes. Importers and distributors should verify that venting configurations match the intended installation environment to avoid costly returns or code violations.
Basic heading 215 of 642 in section 7
Basic heading 74181 · $53.2M of $172.0B
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Imports · August 2026
origin
South Korea and Japan together supply 84% of it. China pays 37.5% duty; Mexico 0.1%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$53.2MYoY · free account
Exports
$6.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $631.6M of Instantaneous Gas Water Heaters.
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.