The first digital water heater in Singapore.

A powerful solution that saves energy and produces hot water on demand.

Starting at $580

Your control panel

At a single glance, the control panel tells you the real time quantity of hot water in the heater tank.

Use the panel to program your water heater according to your family’s needs. Reduce your thermostat to the recommended 50ºC to save energy.

WHY 50ºC? >

Put your heater in the right mode.

Regular electric heaters only have a standard mode, which supports two back to back showers.

Digital heaters can be programmed to heat for a single shower or they can be switched to multiple mode which caters for up to four back to back showers.

Want instant hot water? Right away.

A. O. Smith digital heaters are the only systems equipped with the heating technology to perform like instant heaters.

At the touch of a button, get hot water from a 100% cold tank in a mere 2 minutes.


Built-in Timer

Want your heater to preheat water for you at 6am in the morning? Set a timer.


Number 1 water heater in USA

A. O. Smith is America’s top water heater due to their successful manufacturing process of Blue Diamond tanks that can last at least 10 years. Today, they are the largest water heater manufacturer worldwide.


100% fully-owned robotic plants

To maintain high quality control, A. O. Smith Corporation fully owns every of their 21 plants worldwide. They are the only manufacturer with the technology to employ robotics over 95% of their production line.


How to use the panel?

Ideal settings for family of 2-4 pax
  • Set between 50-55ºC
  • Mode: Multiple
  • Timers are optional. More on timers here
  • Do not set your thermostat below 50ºC. Why?

Can my heater be fixed by the ID or plumber?

Water heaters are a straightforward installation. As long as they are fixed according to the manual, the warranty of the systems will be intact. We’ll even pass your ID an installation guide with pictures on request.

In most cases, installation is priced separately so as to give you an open option.

Installation starts at $160


What is the warranty like?

AOSBath provides the longest full onsite warranty for water heaters in Singapore.

This an all-in warranty and not a partial warranty. The warranty covers three years of transport, parts, and labour.


Can I replace my heater switch with a digital control panel?

For the digital heater to be correctly installed according to safety standards in Singapore, both the heater switch and panel must be installed. The digital panel wire (green line) is separate from the power cable (orange line).

Where should the panel be fixed?

The digital panel runs from a special data cable from the heater tank. It is moisture resistant and usually fixed close to the heater tank in the bathroom.

The heater power switch (provided by HDB or developer) remains in its default location, outside the bathroom. This is the main on/off control.


Model Diameter (mm) Length (mm)
CEWHR-40 Ø395 718
CEWHR-50 Ø395 838
CEWHR-80 Ø463 863
CEWHR-100 Ø463 1028

Rated volume (L) 40 50 80 100
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) 0.8 0.8 0.8 0.8
Inlet/outlet connection (inches) ½ ½ ½ ½
Waterproof grade IPX4 IPX4 IPX4 IPX4
Net weight (kg) 21 23 30 33