Mega Digital Water Heater

Designed to maximize hot water output, reduce standby loss and save you money by using less energy.

Digital Heating Technology

New digital control panels give you full control of your water heater.

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.


  • Temperature controls
  • MAX heat
  • Instant heat
  • Built in timer
  • Blue Diamond™ tank

Control your heater with a touch screen control panel.
Not only does it look better. Your heater just got a whole lot smarter.

▸ New digital controls

Program your water heater to save over 40% of energy.

Old heaters waste so much energy because their temperature cannot be adjusted.

▸ Learn more

Digital heating generates twice as much hot water as a regular electric water heater.

▸ Patented MAX heating

Other Features

Blue Diamond™ Tank

Patented tank lining makes A. O. Smith heaters the toughest in the market.

Built In Timer

System goes into energy saving mode on its own. No need to turn your heater off and on.

Blue Diamond™ Element

A. O. Smith manufactures in-house elements of the highest heating efficiency.

Instant Heating

A patented heating sequence gives you hot water without you having to wait.

High Density Insulation

Reduce standby heat loss and lower energy costs.

Model Diameter (mm) Length (mm)
EES-30D Ø520 958
EES-40D Ø520 1133
EES-50D Ø520 1413
Product Specifications
Rated volume (L) 114 152 190
Power (kW) 3.0 3.0 3.0
Voltage/frequency (V/Hz) 230~/50 230~/50 230~/50
Temperature range (°C) 35 – 75 ± 5 35 – 75 ± 5 35 – 75 ± 5
Rated water pressure (MPa) 1.0 1.0 1.0
Inlet/outlet connection (inches) ½ ½ ½
Waterproof grade IPX4 IPX4 IPX4
Net weight (kg) 43 53 60