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SITCSection 7
U.S. imports of instantaneous gas water heaters (SITC 74181) totaled $46.4M in April 2026, traded with 13 countries.
Importers of Instantaneous Gas Water Heaters paid $3.8M in duties in April 2026 — an effective duty rate of 10% on $37.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Instantaneous Gas Water Heaters imports of $46.4M in April 2026 ran 11% below the year-to-date monthly average of $51.9M.
Last updated: April 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.
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.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $19.7M | $11K | -$19.7M |
| JAPAN | $14.3M | $9K | -$14.3M |
| MEXICO | $9.1M | $989K | -$8.2M |
| CANADA | $110K | $4.8M | +$4.6M |
| VIETNAM | $2.0M | -- | -$2.0M |
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Monthly import values over time