🛠️ Invention or technique

Instantaneous gas water heater (geyser)

Calentador instantáneo de agua a gas (geyser)

Date
1868 · confidence medium
Place
London, England, United Kingdom
Credited to
Benjamin Waddy Maughan
Field
Tools

What it is

An appliance with gas burners beneath a coil through which tap water passes and comes out hot at once. Its name, 'geyser', refers to Iceland's hot-water fountain.

It was costly and dangerous because it lacked a flue, causing carbon monoxide poisonings; the location is approximate.

What it led to

  • running hot water in middle-class homes
  • baths with hot water on demand
  • Ruud's storage heaters (1889) and modern water heaters

Links

Sources✓ verified 2026-11-06