UL 174

Standard for Household Electric Storage Tank Water Heaters

This Standard outlines safety requirements for household electric storage tank water heaters and small-capacity storage tank water heaters, such as those used under sinks. It includes requirements to mitigate hazards and help ensure continued proper use after being exposed to abnormally high pressure.

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More Appliance and Power Tool Standards

Installed Appliances
  • Fridges, ice, and ice cream makers
  • Ovens, ranges and hoods
  • Dishwashers
  • Plumbing, irrigation and flushing
  • Garbage disposals
  • Household fans and blowers
  • Trash compactors
  • Water heaters
  • Booster water heaters
  • Household boilers
Small Appliances
  • Food prep machines
  • Cooking and serving appliances
  • Coffee makers, kettles and carafes
  • Electric skillets and fryers
  • Floor care machines
Sustainability Standards
  • Fridges and freezers
  • Ovens, ranges and cooktops
  • Microwave ovens
  • Clothes washers
  • Clothes dryers
  • Portable household appliances
Power tools
  • Metal safety cans
  • Electric lawn mowers
  • Pressure washers
  • Combustibility in bench tools
  • Riding mowers
  • Pressure washer safety
  • Hand-held lawn and garden tools
  • Switches for hand-held tools