Sourcing radiators and towel rails from China

Duty

Read from the UK Trade Tariff on 25 September 2026, central heating radiators of cast iron, other radiators including steel panel radiators and water-heated towel rails, and other parts carried 2% duty on goods from China, with no anti-dumping measure. Electric towel rails and electric radiators are electrical heating appliances with their own codes, so confirm the commodity code for each model.

Radiators are bulky and heavy, so the container fill decides much of the landed price; ask for the carton sizes and the container quantity with the quote.

Heat output is the product

Radiators are construction products with a harmonised standard, EN 442, under which the heat output is tested and declared. UK buyers compare radiators on that figure, so ask for the test report for each size and the temperature difference it is stated at, and be wary of a figure that has no report behind it or is quoted at a different temperature difference from the ones you are comparing.

Ask for the declaration of performance, and keep it with the product specification; the CE and UKCA guide explains the marking.

Connections, pressure and finish

UK systems use British Standard Pipe threads and 15 mm pipe, and the pipe centres of a replacement radiator have to match the old one, so specify the connection sizes and centres for the UK and check them on the first samples. The taps and radiator valves guide covers the valves.

Every radiator should be pressure tested at the factory, and the inspection should confirm it. Powder-coated finishes chip in transit unless each radiator is fully wrapped and cornered, so check the packing as well as the paint at inspection.

Worked duty example

Take a hypothetical order of 2,000 steel panel radiators, entered under 7322 19 00 00: £50,000 free on board plus £6,000 of freight and insurance gives a customs value of £56,000. The 2% duty on steel radiators comes to £1,120, and import VAT is 20% of £57,120, which is £11,424. If you are VAT-registered you normally reclaim the £11,424, leaving £1,120 as the real cost at the border. Radiators are bulky, so freight is over a tenth of the customs value here. Step by step: UK import duty and VAT.

Inspection checklist

Pressure: witness the factory pressure test on production radiators at the test pressure BS EN 442-1 sets for the declared maximum operating pressure, holding for the full time with no drop and no weeping at welds.

Threads and fixing: check tappings are British Standard Pipe parallel threads to ISO 228-1 with a thread gauge, and measure pipe centres, bracket positions and overall size against the drawing on first-off samples.

Coating: measure powder coat thickness with a gauge to ISO 2808 at several points on each sampled radiator, check colour and gloss against the approved panel, and look for runs, bare spots and orange peel at welds and ends.

What goes wrong

Radiators fail on output, leaks and finish. Declared heat output is not backed by an EN 442 report or is quoted at a larger temperature difference than the one UK buyers compare on, welds and seams weep once filled, and radiators arrive with manufacturing oil or scale inside that feeds system sludge. Powder coat chips in transit or yellows near the valve, towel rails rust at the joints in bathrooms, and tappings or bracket positions do not suit UK valves and walls.

Ask for an EN 442 heat output report for each size at the temperature difference you quote, witness the factory pressure test on production radiators, check inside for oil and debris, test coating adhesion with a cross-cut test to ISO 2409 and run a salt spray test to ISO 9227 on towel rail finishes, check tapping threads and pipe centres on samples, and inspect wrapping and corner protection before loading.

Designer ranges

Designer radiators and towel rails sell on finish and size choice, which multiplies the number of lines. Agree a core range the factory can hold in stock colours, and order spares, brackets and blanking plugs with the first shipment. For column models, see our steel column radiator sourcing guide. For cast-iron spares, see our guide to replacement cast-iron radiator sections.

Cambridge China Bridge sources own-brand radiators and towel rails with the heat output tested, the UK connections specified and production inspected before it ships. See how our sourcing service works.

For electric space heaters and water heaters, see Electric heaters and water heaters from China. For gas-fired warm-air heating, see our gas unit heater sourcing guide. For water-heated warm-air equipment, see sourcing hydronic unit heaters. For skirting radiators, see our steel hydronic skirting radiator sourcing guide.