The absences are the more useful half of that table, and they are the half nobody else has published, because confirming that something is not on a list means reading the whole list rather than a summary of it.
Household dishwashers are the headline case. Reading the schedules to the surtax order line by line, the only entries under the dishwashing heading are three parts codes covering water containment chambers, door assemblies and other components. There is no entry for whole machines. Dishwashers, as a thing you buy and install, are not on the September 8 list.
That matters because the opposite is circulating widely. At least one national news summary lists dishwashing machines among the 25 per cent appliances, and a heavily shared social post enumerates dishwashers at 25 per cent as though it were settled. The mistake is understandable and mechanical: the government's published table includes a column reproducing the full text of each customs heading, which is far broader than the specific goods actually tariffed in the neighbouring description column. Read the heading column and you will report things that are not there.
The same trap produces the water heater error. The heading that covers water heaters also covers ovens, space heating apparatus and clothes irons, and the only entries on the list under it are the cooking appliances. Water heaters are absent. So are furnaces and boilers, which sit under a different heading with no entries at all.
Once you start checking rather than assuming, the tariff-free list gets long: vacuum cleaners, televisions, mattresses and bedding, smoke and carbon monoxide alarms, batteries, generators, snow blowers, paint and varnish, ceramic sinks, toilets and tile, kettles, toasters, coffee makers and microwaves. In every one of those categories, an October discount is just a discount, and it should be judged on price history alone.
Our earlier reporting on how far the September 8 list reaches past appliances covers the renovation-material side of the same schedule.