Sourcing superheated water boilers from China
Superheated water boilers from China carry 0% UK import duty, with no anti-dumping or countervailing duty shown. Pressure-equipment conformity is the main buying requirement, and qualifying systems need a written scheme of examination and examination before use. Cambridge China Bridge sources superheated water boilers.
Zero duty on superheated water boilers
Heading 8402 includes superheated water boilers alongside steam and other vapour generating boilers. Superheated water boilers have their own line, 8402 20 00 00. The complete-boiler rows show different purchasing configurations under that same line, rather than separate tariff subdivisions. Boiler parts appear under 8402 90 00 00.
Read from the UK Trade Tariff on 1 October 2026, superheated water boilers and boiler parts from China carry 0% duty. The supplied tariff record shows no anti-dumping or countervailing duty, suspensions or attached import controls for these lines.
Confirm the commodity code from the working fluid, output and scope of supply. Central heating hot-water boilers belong under heading 8403 instead. For the wider heading, see steam boilers.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Shell-type superheated water boilers | 8402 20 00 00 | 0% | None |
| Parts of superheated water boilers | 8402 90 00 00 | 0% | None |
Specify pressure, temperature and the water circuit
State the required heat output, flow and return temperatures, working pressure and maximum allowable pressure. Agree the water flow, pump duty, expansion arrangement, water treatment, fuel and burner supply. List what the factory supplies and what the installer provides, including pumps, valves, controls and connections.
Superheated water boilers are pressure equipment under the Pressure Equipment (Safety) Regulations 2016. Agree the equipment category, conformity assessment route and any assessment body before fabrication. Check the declaration of conformity and UKCA or CE marking against the supplied design. Great Britain continues to recognise CE marking under this regime. Use testing and certification support to review the proposed documentation.
For combustion boilers in England and Wales, confirm with the relevant environmental regulator whether the installation needs an environmental permit and what deadline applies. Check scope, exemptions and emissions requirements for the installation before ordering.
Worked duty example
Illustrative example, not a quote: One superheated water boiler with burner and controls, illustrative only under 8402 20 00 00, invoiced at £60,000 free on board, with £5,000 of freight and insurance to the UK. The customs value is £65,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £65,000, so it is £13,000. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Documents: match the serial number, design pressure and temperature to the drawings, declaration and assessment records. Request English operating and maintenance instructions.
Pressure boundary: trace plate and tube materials to their certificates. Review weld inspection records and witness the factory hydrostatic test against the agreed procedure.
Protection: check safety valves, temperature and pressure limiters, circulation protection and burner shutdown against the agreed control sequence. Record witnessed functional checks.
Arrival: inspect nozzles, supports, lifting points, insulation and cladding for damage. Check loose components against the packing list and preserve transport-damage photographs. Agree inspection stages through quality inspection.
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What goes wrong
A factory may supply paperwork for a different pressure rating or boiler design. Weld defects, leaking tube joints and missing material traceability can delay acceptance. A mismatched pump, unsuitable expansion arrangement or incomplete shutdown sequence can also leave the boiler incompatible with the planned water circuit. Resolve these points against approved drawings before shipment.
Factory testing does not replace the examination required before use. Qualifying pressure systems need a written scheme of examination and an examination before operation; arrange the scheme with a competent person. Keep the boiler delivery, installation checks and operating examination as separate acceptance stages.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For machinery and equipment, see machinery imports.
Frequently asked questions
What is the UK import duty on superheated water boilers from China?
The supplied tariff record gives 0% duty for 8402 20 00 00 and boiler parts under 8402 90 00 00, with no anti-dumping or countervailing duty shown.
Do Chinese superheated water boilers need UKCA or CE marking?
They fall under pressure-equipment rules. Confirm the category and assessment route, then check the applicable UKCA or CE marking and declaration of conformity for the supplied boiler.
What must be arranged before using a superheated water boiler?
For a qualifying pressure system, a written scheme of examination must be in place and an examination undertaken before use. Arrange the scheme with a competent person.
What should I ask a Chinese boiler factory to supply?
Request approved drawings, material certificates, weld inspection and hydrostatic-test records, conformity documents, the control sequence and operating instructions for the exact supplied design.