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califont

New Zealand English term for a gas water heater -- the kind that heats water on demand rather than storing it in a tank.

ˈkæləfɑnt157 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

New Zealand English term for a gas water heater -- the kind that heats water on demand rather than storing it in a tank. The word is so deeply embedded in NZ usage that many New Zealanders are surprised to learn it is not universal. It functions as a genericized trademark, similar to how 'hoover' works for vacuum cleaners in Britain.

The califont had been playing up all week, and cold showers in July were not appreciated.
Origin: From the brand name 'Califont', a manufacturer of instantaneous gas water heaters in New Zealand; genericized in NZ English. Editorial expansion authored on Slangora.
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#2·Apr 28, 2026

A New Zealand English term for an instantaneous or continuous-flow gas water heater — the kind that heats water on demand as it passes through the unit, rather than storing it in a tank. The term is essentially unique to New Zealand and is not used elsewhere in the English-speaking world, where 'gas water heater' or 'combi boiler' would be used instead. Califonts are common in New Zealand homes and the word is deeply embedded in everyday Kiwi English.

The califont was playing up again, so they had to wait ages for the shower to run hot.
Origin: Derived from 'Califont,' a brand name for gas water heaters that became genericized in New Zealand, similar to how 'Hoover' became a generic term for vacuum cleaners in British English. Editorial expansion authored on Slangora.
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#3·Apr 27, 2026

(NZ) a type of water heater.

Cluster: food_drink
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