A Windermere kettle is a form of

steam Steam is water vapor, often mixed with air or an aerosol of liquid water droplets. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Saturated or superheated steam is inv ...

-operated tea urn or

samovar A samovar (, , ) is a metal container traditionally used to heat and boil water. Although originating in Russia, the samovar is well known outside of Russia and has spread through Russian culture to other parts of Eastern Europe, as well as We ...

installed on some

steam launch Launch is a name given to several different types of boat. The wide range of usage of the name extends from utilitarian craft through to pleasure boats built to a very high standard. In naval use, the launch was introduced as a ship's boat t ...

es. They are a metal vessel containing a few pints of water. Inside the vessel is a steam heating coil. When hot or boiling water is required, a valve is opened and steam from the boat's propulsion boiler is passed through the coil, heating the water. Their exhaust is either overboard or up the funnel, as convenient. Windermere kettles are rapid boilers and can heat enough water to make a

pot Pot may refer to: Containers * Flowerpot, a container in which plants are cultivated * Pottery, ceramic containers made from clay * Cooking pot, a type of cookware * Pot, a beer glass Places * Ken Jones Aerodrome, IATA airport code POT * ...

tea Tea is an aromatic beverage prepared by pouring hot or boiling water over cured or fresh leaves of '' Camellia sinensis'', an evergreen shrub native to East Asia which probably originated in the borderlands of south-western China and nor ...

in only a few seconds. Their name is derived from the popularity of steam launches on

Windermere Windermere (historically Winder Mere) is a ribbon lake in Cumbria, England, and part of the Lake District. It is the largest lake in England by length, area, and volume, but considerably smaller than the List of lakes and lochs of the United Ki ...

, a lake in the

English Lakes The Lake District, also known as ''the Lakes'' or ''Lakeland'', is a mountainous region and national park in Cumbria, North West England. It is famous for its landscape, including its lakes, coast, and mountains, and for its literary associati ...

, during the Victorian and Edwardian periods. Many of these launches were equipped with such kettles.

Misconceptions

* The water used is

fresh water Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include ...

added separately to the vessel. It is ''not'' condensed steam, nor does the steam mix with it. Boiler steam is contaminated with lubricants, sometimes with chemicals for feedwater treatment, and is definitely not

potable Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also calle ...

. * The water used is ''not'' drawn from the lake. Although Windermere has famously pure water, so pure that it used directly as

boiler feedwater Boiler feedwater is the water which is supplied to a boiler. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used, it is then dumped to the ...

, it is still not considered wise to drink it untreated.

References

{{Reflist Kettle, Windermere Kettle, Windermere Teaware Boilers (cookware)