Light Commercial Heat Pump Heater

Weatherproof residential heat pump for landed homes. Ideal for 8 to 10 baths.

Light Commercial Heat Pump Heater with digital controller.

What is a heat pump?

Heat pumps are water heaters which absorb free ambient air to heat up water. They save 80% of heating energy or around $900 a year.

Working range: 7 to 45°C.

After 10 years, other brands drop below 60% efficiency.

After 10 years, other brands drop below 60% efficiency. High integrity AOS heat pumps does not fall below the 90% efficiency range.

Your AOS heater remains a top performer, even after many years of service.


AOS clients enjoy longest full warranty in Singapore: 3 years

While other brands provide a 1-year warranty, AOS warranties last 3-years. This is the longest full warranty in Singapore.
With the high standards of water cleanliness here, we have seen AOS heaters last 20 years. The average lifespan of a water heater in Singapore is 5 years.
These high standards are due to A. O. Smith owning every of their 21 plants worldwide. They use robotics technology to replicate quality over 95% of their production line.

We spend US$83 million on R&D each year

A. O. Smith is America’s top water heater and the largest water heater manufacturer worldwide. They commit US$83 million to deep research on water technology, maintaining their edge with a steady stream of innovative patents.

Established in 1874

With over 150 years of water heater innovation, A. O. Smith is the leading producer of water heaters.

Automated factories

A. O. Smith does not outsource manufacturing. They own each of their 21 factories worldwide. The factories are 95% automated for optimal quality control.

Silent operation

Other heat pumps have compressors that run as loud as 80dB. The noise level increases over time.

The AOS system is discreet.

AOS heaters are built with silent compressors that never exceed 50 decibels. This is a noise level comparable to the sound of rustling leaves.

2X more efficient than solar

We studied extensive meteorological reports on climate and sun intensity. Only after that, were heat pumps launched in Singapore.
In our cloudy region, solar heaters have an efficiency of 50%. Heat pumps far outperform solar at an efficiency of 80%.

4 times more efficient than electric heaters

In the tropics where there is no winter, heat pumps work at high efficiency 24 hours, 7 days a week. A local test lab has certified AOS heat pumps 4 times more efficient than an electric heater.

Watch our interview with Channel News Asia

Electric and gas heaters consume 3000 watts of power or equivalent. 
In comparison, heat pump water heaters use only 460 watts.

Central heaters reduce initial cost

Using several individual heaters is a layout of the past.

New developments usually use a single water heater. You will save much more on the initial total cost this way.

Weatherproof heat pump

Install a weatherproof heat pump outdoors and free up precious internal living space.

Raise your bathroom ceilings

Use the integrated heat pump as a central heater. By moving the heater out of the bathroom, you can raise ceilings for a more spacious bathroom concept.

Central heat pumps reduce power loading

Each water heater draws around 3000 watts. Having a few heaters running in the house draws a higher power load. With a single central heater, you can power up the entire house with only 460 watts.

Eliminate messy maintenance works out of your bathroom to the roof area

Your bathroom is your personal space. The last thing you need there are messy ceiling and plumbing works.

Central units are installed in a public space – at the roof or aircon ledge. Installers only need to access these areas.

Frequently Asked Questions

Why are heat pumps more efficient vs. solar heaters?

Solar heaters have high-power backup heating elements. There are often activated when conditions are unfavourable. These conditions include rainy days, cloudy days and evenings. When heating elements activate, solar heaters are low efficiency.

Heat pumps are a more efficient system because they have a much larger working range. They work on high efficiency, as long as the temperature does not drop below 7ºC.

Yes, you can leave the switch on all the time. Heat pumps are automatic systems and will cut off when the temperature is right.

There will not be any wastage of electricity.

Electric heaters create heat using 3000-watt heating elements.

Heat pumps do not create heat. They transfer heat from the ambient air with the use of a small compressor that runs on only 210 watts.

Heat pumps are renewable energy heaters. Their tanks are larger than a usual because they generate heat slower.

A large tank serves as a reservoir for stored energy.

Send your floor plan over to us at WhatsApp 87682661. Do let us know the number of people living at home and we will recommend the right size for you.

CAHP Product Specifications

Length (MM)910990
Width (MM)610711
Height (MM)16701700
Rated volume (L)304456
Power, heat pump mode (kW)1.251.25
Power, electric mode (kW)4.24.2
Voltage/frequency (V/Hz)220~/50220~/50
Temperature range (°C)35 – 82 ± 535 – 82 ± 5
Max/min ambient temperature (°C)5 – 48 ± 55 – 48 ± 5
Noise level (dB)≤ 52≤ 52
Rated tank, inlet/outlet pressure (MPa)0.80.8
Inlet/outlet connection (inches)¾¾
Waterproof gradeIPX4IPX4
Net weight (kg)165198