Canada supplies 29.8% of U.S. imports of Central Heating Boilers, across 21 countries (year to date through September 2026).
HHI 1,815 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
21 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Canada | $8.1M | 39.1% | -10.6% | 23.5% |
| 2 | South Korea | $4.6M | 22.2% | -31.8% | 25.2% |
| 3 | Switzerland | $2.2M | 10.6% | -66.4% | 25.0% |
| 4 | China | $1.2M | 5.8% | +0.2% | 30.8% |
| 5 | Japan | $1.2M | 5.7% | -24.4% | 24.5% |
| 6 | Netherlands | $965K | 4.7% | -6.2% | 20.7% |
| 7 | Germany | $743K | 3.6% | -22.1% | 25.0% |
| 8 | Italy | $621K | 3.0% | -19.0% | 25.0% |
| 9 | Austria | $427K | 2.1% | +152.8% | 25.0% |
| 10 | Turkey | $261K | 1.3% | -18.1% | 25.0% |
| 11 | Mexico | $210K | 1.0% | +60.3% | 25.0% |
| 12 | United Kingdom | $153K | 0.7% | -74.3% | 25.0% |
| 13 | Poland | $66K | 0.3% | -90.1% | 25.0% |
| 14 | Portugal | -- | 0.0% | +27.3% | -- |
| 15 | Slovakia | -- | 0.0% | -- | -- |
| 16 | Hungary | -- | 0.0% | -- | -- |
| 17 | Liechtenstein | -- | 0.0% | +1307.1% | -- |
| 18 | France | -- | 0.0% | -21.0% | -- |
| 19 | Bosnia and Herzegovina | -- | 0.0% | -- | -- |
| 20 | Thailand | -- | 0.0% | -- | -- |
| 21 | Sweden | -- | 0.0% | +72.0% | -- |
Duty is the duty Census calculated on this month's imports for consumption from each country, as a share of their customs value. It applies the rates in force, additional duties such as Section 301, 232 and IEEPA included and claimed trade-agreement preferences netted out, so it is an observed rate rather than a statutory one. It is an estimate, not duty collected: antidumping and countervailing duties, fees and later refunds are not in it. YoY compares year-to-date value with the same months last year.