How the system works
A description of something people do now, compiled from published accounts rather than from practice.
A strong concentrate — zavarka in Russian usage — is brewed in a small pot kept warm on top of the urn, and each cup is made by pouring a little concentrate and topping it up with hot water from below. Strength is decided per cup rather than per pot, which is precisely the point when a group is sitting for a long time.
Accompaniments differ by tradition
A description of something people do now, compiled from published accounts rather than from practice.
Russian practice conventionally involves lemon, or jam eaten alongside rather than stirred in. Persian practice commonly places a sugar cube between the teeth and drinks through it. Turkish practice uses a stacked double kettle rather than an urn and serves in tulip glasses. These are related solutions rather than one custom.
A social object as much as a device
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The samovar sits at the centre of a gathering and stays hot for hours, which shapes the occasion around it. Its role is closer to a hearth than to a kettle, and the practice does not translate well into a single-cup preparation.