Other forms: samovars
If you order tea in a Russian restaurant, you're likely to see a samovar, a metal container used for heating tea or coffee water.
Russian words in English are a small but unfailingly interesting group, including this one: a metal urn with a spigot, used for boiling water. The Russian roots mean "self-boiler," or "self-cooking." Samovars are commonly used not only in Russia, but in Kashmir, Iran, and Turkey as well. A Google image search will fix this indispensable metal appliance in your mind.