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ThermoMate 2.5-Gallon Mini Tank Electric Water Heater, 120V, Under Sink, Instant Hot Water, ES250

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Product details

Management number 231031555 Release Date 2026/06/18 List Price $76.00 Model Number 231031555
Category

The 2.5-gallon electric mini tank water heater provides instant hot water with no waiting. With 1440W heating power and a 120V plug-in connection, it delivers quick recovery and adjustable water temperatures from 50°F to 149°F. Built with 30mm CFC-free polyurethane insulation, it keeps hot water warm longer while reducing energy loss. The tank is tested over 10,000 times for durability and features a 3-layer porcelain enamel glass lining that resists corrosion, rust, scale, and leaks. An extra-thick anode rod ensures long-lasting heating efficiency. Equipped with an Incoloy 800 stainless steel heating element, this unit is highly resistant to corrosion, more durable than copper, and operates at up to 99% efficiency. Safety is certified with UL listing and includes an ASME, ANSI, and CSA-approved T&P relief valve. Compact and versatile, it installs easily under sinks, counters, cabinets, or in small spaces such as RVs, boats, garages, barns, campers, and shops.

  • ‌2.5-gallon mini tank, instant hot water
  • 1440W, 120V plug-in, fast recovery
  • Adjustable temperature: 50°F–149°F
  • 30mm CFC-free polyurethane insulation
  • 3-layer porcelain enamel glass-lined tank
  • Extra-thick anode rod for long service life
  • Incoloy 800 stainless steel heating element, 99% efficiency
  • UL listed, including T&P relief valve and mounting kit
  • Compact size, wall or floor mount under sink/cabinet
  • 1/2"" NPT water connection, up to 150 PSI
  • Lightweight: 15.4 lbs, easy to install
  • Backed by 1-year warranty and customer support
Water heater type Point of Use Water Heater
Fuel type Electric
Brand Thermomate
Volume capacity 2.5 gal
Features Auto Shut-Off, Compact, Durable, Easy Clean, Easy Installation, Energy Efficient, Lightweight
Rec location Basement, Bathroom, Garage, Gym, Indoor, Kitchen
Rec. room Basement, Bathroom, Garage, Kitchen, Laundry Room, Multi-room
Dimensions 11.50 x 12.95 x 12.95 in
Watts 1440 W
Amps 12 Amps
Volts 120 V
Weight 15 lb
Has nrtl listing certification N
Accessories T&P Relief Valve, Mounting Kits, User Manual
Model ES250N1

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