Lowboy Electric Water Heater

Lowboy heaters are designed to fit into tight spaces or under counter cabinets.

Blue Diamond Glass™ Technology

The patented Blue Diamond™ Glass formula which makes AOS tanks so lasting is known to only 7 people in the world.


  • Blue Diamond™ tank
  • Blue Diamond™ element
  • Ultra thick insulation

Blue Diamond Glass™ Technology

A. O. Smith water heaters are more durable than others.
They easily last over 10 years. Their patented Blue Diamond glass lining significantly reduces corrosion and scaling.

Glass Lining vs. Stainless Steel

Blue Diamond Glass™ Elements

Best scale resistance.
Highest heating efficiency.

How do scales reduce efficiency?

We do not compromise on insulation.

Well insulated water heater tanks are very important because they lower energy costs.

What insulation does AOS use?

A (MM) B (MM) C (MM)
EJC-6 388 273 362
EJC-10 464 312 407
EJC-20 629 473 458
EJC-30 762 578 559
I Inlet
O Temperature pressure valve
D Outlet
T Drain
Product Specifications
EJC-6 EJC-10 EJC-20 EJC-30
Rated volume (L) 23 38 76 114
Power (kW) 3.0 3.0 3.0 3.0
Voltage/frequency (V/Hz) 230~/50 230~/50 230~/50 230~/50
Temperature range (°C) 35 – 75 ± 5 35 – 75 ± 5 35 – 75 ± 5 35 – 75 ± 5
Rated water pressure (MPa) 1.0 1.0 1.0 1.0
Inlet/outlet connection (inches) ½ ½ ½ ½
Waterproof grade IPX1 IPX1 IPX1 IPX1
Gross weight (kg) 14 20 29 45

Leading American Technology

A. O. Smith has been refining water heating technology for the last 140 years. Every A. O. Smith heater is equipped with cutting edge, patented technology. Other heaters may look like A. O. Smith heaters but they do not work the same way.

Built to Last

A. O. Smith’s patented Blue Diamond formula makes its water heater tanks the toughest and most durable tanks in the market.

The longest lasting heater in the world was made by A. O. Smith.

No OEM Factories

Other manufacturers use OEM factories so they can give you cheaper products, but every A. O. Smith water heater and its components are manufactured in-house.

3 year full warranty

Other heaters only provide full warranties for one year. All A. O. Smith products are fully guaranteed for 3 years – parts and labor, making us the longest water heater warranty provider in Singapore.

Lowboy Electric Water Heater

Model: EJC

3 year full warranty
5 year tank warranty