Gen 1 Electric Heater
The #1 water heater in the USA. While most heaters in Singapore last about 5 years, an AOS heater can last over 10.
How long does an AOS heater last in Singapore?
Chiltern Park Condo: 33 years
Eastwood Place: 25 years
Springbloom Condo: 28 years
We don't like to overpromise. We prefer to over-deliver. That's why we tell you an AOS heater will last around 10 years.
Gen 1 is the top choice for false ceilings. Why?
If a HDB installation costs $300, a false ceiling installation can go up to 2 times the amount.. $600!
False ceilings are expensive. Condo and landed home owners invest in a good heater that lasts a long time, so they can avoid ceiling works.
You will save more time and money if you get a good heater.
What makes AOS heaters last so long?
When you buy an AOS heater, you are going for their exclusive Blue Diamond™ tank, patented in the 1920s.
Blue Diamond™ is a special glass formula that coats the inside of the heater tank. Blue Diamond™ glass is unique. It can expand and contract with the tank without breaking off.
Every time the tank goes through a heating cycle, the glass is stress-tested. Blue Diamond™ can withstand hundreds of thousands of such thermal expansions without breaking.
Blue Diamond vs. Stainless Steel
Some heaters use stainless steel tanks. Blue Diamond performs better with continuous hot water use, especially above 50ºC.
Singapore water is high in chlorides, which can corrode stainless steel. Blue Diamond resists this better, even if the water gets acidic.
Benefit: Blue Diamond lasts longer. Estimated lifespan is over 10 years, and in many Singapore condos, we’ve seen over 20 years of use.
Why do heaters rust?
When the internal tank cracks, hot water comes into contact with the metal tank. This starts the corrosion and you see rust. When this happens, the heater must be replaced.
With other brands in Singapore, it happens within 3 to 5 years! That is very short by international standards. An AOS Gen 1 heater can last at least 10 years without this problem.
Every other part of a water heater can be fixed, but we can't repair the inner tank. That is why you should get a good inner tank.
My previous heater was also an AO Smith, and it lasted more than 15 years. Just installed the new heater today. Kalam and Mahadi did a very professional job with the wiring and piping.
Fook Hou Lee
Google review
A. O. Smith, my go-to water heater brand. Tried the popular Italian brand and the popular Malaysia brand water heater, always end up with leakage or rust in less than 5 years. No leakage or rust issue with my A. O. Smith water heater.
Kenn Tan
Google review
If you don't get the tank right, every other feature is useless.
The foundation of this Gen 1 heater must be rock solid. There is no use creating extra features like digital heating, if the basic tank can't last over 5 years.
The Gen 6 water heater is #1 Top Selling heater in our range. That is because people can already take durability for granted. They know the heater will last a long time.
The main principle is: Get the basics right, and you can move on to the advanced stuff.
The real story of Mrs Prince: a 50-year Miracle
The longest lasting Blue Diamond heater installed in Virginia, America has a record of 52 years. AOS was so proud of this, that they housed it in their own museum.
But we must be realistic.. Not every heater is going to have this kind of lifespan.
Create peace of mind, versus a hassle every 5 years.
Your time is precious. Do you want to hunt for a new heater so often? You need to look for an installer all over again.. Research the best place to buy.. Make a list and compare prices.
You should get a good heater once and for all. It will save you time and money. The price difference between an AOS Gen 1 heater and low-end heater is about $200.
$200 is not a high price to pay for your peace of mind.
Best heater ever. 1st heater lasted 17 years. Water pressure is good, will always be AOS.
S*ra L
Google review
Currently using A. O. Smith for the past 20 years. Still working but ageing.
Looking for replacement end of year.
Louis CT
Email review
Do old heaters heat slowly?
Some do! You need to leave the switch on for longer to get the same amount of hot water, right? How inconvenient. Might as well get a new one.
But did you know? There are heaters that 'lose' their heating ability and heaters that don't. Here is the difference between them.
This will get a bit technical, but stay with me! We are about to learn something new.
Take a close look at these horrid scales!
Scales come from calcium and magnesium in hot water. They stick to your heating element over time and make it work harder.
Scales destroy your heating efficiency!
Heating elements need to burn through scales to heat up the water. This consumes more electricity.
Scales form on all types of heating elements.
You may have seen scales with your own eyes! Those white sediments in hotel kettles? Those are scales. The difference is, in a kettle, scales can be washed out. You can't do that for water heaters.
Washing machine elements are also well known for scaling over time.
You can't wash scales off an element. It will form again. But we can prevent them. Our method is to use patented AOS Blue Diamond™ Heating Elements.
Remember, Blue Diamond™ is a special kind of glass!
Scales form on metals, but glass is non-metallic. It took many tries, but AOS managed to coat a thin layer of Blue Diamond™ on their heating elements.
This protective coating keeps elements very resistant to scales! In fact, it reduces scaling by as much as 50%.
Even after 10 years of use, your water heater can
• Maintain high temperatures
• Heat up in a reasonable amount of time
I bought the 'Blue Diamond' Technology to replace my 5-year old storage tank that had its heating element corroded due to the build-up of scale . Even though the price is slightly higher, I genuinely and truly believe it's money worth spending.
An Interior Designer myself, I have been recommending water heaters from AOS Bath to my clients and all of those who got them had no complaints. Definitely one of the best-looking and well-built ones I've come across.
An Interior Designer myself, I have been recommending water heaters from AOS Bath to my clients and all of those who got them had no complaints. Definitely one of the best-looking and well-built ones I've come across.
M'izz Afiq Bmr
Google review
Every AOS heater has a Blue Diamond™ element
This is how AOS heaters maintain fast heating despite many years of use. People who have used Gen 1 heaters for 30 years have no complains about lack of hot water or slow heating.
Part of the technology is in the coating technique. It took years to try different versions of the Blue Diamond™ glass so that we could apply the thinnest layer. Thin layers stick, thick layers crack and expose the steel elements to hot water.
The glass formula is top secret. It can't be copied. You will never find a Blue Diamond™ element in an ordinary hardware store.
Most people can't tell you why their heaters save energy. We can.
Heating elements with scales burn 🔥 lots of energy trying to heat your water. Scale-free elements are more efficient.
Your heater spends less time working. You get your hot water fast. This is how Blue Diamond™ elements save energy.
There is one other powerful energy saver hardly anyone talks about, because it isn't sexy. Let me introduce.. Insulation.
Heavy insulation saves money, but it does not come cheap.
The Gen 1 has thick high density foam insulation. This foam is injected into the heater shell. It expands to fill in every little gap in the heater jacket for seamless insulation. You need a special machine for this.
This special foam still retains heat after 18 hours. Other heats lose heat after a short 8 hours.
Better heat retention = less reheating.
Less reheating = lower energy burn.
Low energy = low bills.
Don't go for the cheap stuff. Cheap factories give you thin insulation. You will end up paying more long-term.
The AOS Heater is a massive change from the instant water heaters we used to have. Water delivery is consistently hot. What is most impressive is the water tank's ability to retain heat. Even if the power to the heater is turned off at 10pm, the water is still hot at 9am the next day.
Arthur Yong
Google review
Decided to take the plunge after doing research and has been using it for the past 6 months. The price might be higher than the more common and popular brands but the water does remain heated longer. I would just need to on it once in the evening and the water will remain heated for the next 24 hours or longer, depending on your usage and the tank capacity.
Daniel New
Email review
This is what cheap insulation looks like.
We went to the trouble of cutting up an actual heater tank in Singapore, so you don't have to do it.
This is low cost styrofoam, the type that you see in the market. It is a cheap material, full of holes. Air and heat escape easily. No surprise it loses heat fast.
Your heater is a long term investment. Don't shortchange yourself. High electric bills in the long-term are not worth it.
AOS Special Outlet Gives You More Hot Water Than Other Brands
Other brands use a curved side outlet. Over time, this outlet bends out of shape and you get 10% less hot water. AOS uses a straight outlet pipe that goes to the very top of the tank.
This straight pipe is durable and does not bend out of shape. This outlet makes sure you get full control and 100% of the hot water in the tank.
AOS Patented Inlet Gives You More Hot Water Than Other Brands
Other brands use a water inlet at the side, and the high pressure of incoming water shoots cold water up into the tank. This disturbs the layer of hot water sitting at the top of the tank, and gives you only 90% of the hot water available.
AOS uses a special inlet which redirects incoming cold water to the sides. The redirected cold water leaves the top layer of hot water undisturbed and gives you 100% of the hot water in the tank.
After experiencing multiple cold showers with our previous water heater, we decided that it'll be a priority for us to invest in a good water heater for our new home.
After extensive research, we decided on A.O Smith as it was a reputable brand from the US with a long history in manufacturing water heaters.
When we headed down to the showroom, we were impressed by the service and knowledge of the staff. Not to mention, their after-sales service was also top notch as they were very responsive in answering the questions that our contractor had about the installation of the heater.
Admittedly their water heaters are on the pricier side but we have no regrets at all as we believe that the quality of the product and the service provided justifies the extra cost.
After extensive research, we decided on A.O Smith as it was a reputable brand from the US with a long history in manufacturing water heaters.
When we headed down to the showroom, we were impressed by the service and knowledge of the staff. Not to mention, their after-sales service was also top notch as they were very responsive in answering the questions that our contractor had about the installation of the heater.
Admittedly their water heaters are on the pricier side but we have no regrets at all as we believe that the quality of the product and the service provided justifies the extra cost.
Louis W
Google review
Every part of the tank is improved, so you get the best.
If you are buying an AOS heater, you are buying the best of water heaters. It is crafted with great skill and expertise.
Every feature on this page is for the most basic Gen 1 water heater tank. Every other AOS heater technology is built on this solid foundation.
This exclusive top performance is what you get from a Water Heater Specialist!
Frequently Asked Questions
Can I control my Gen 1 heater temperature?
Not accurately, but you can adjust the temperature at the knob on the right side of the tank. Setting temperatures will range around 60 to 70ºC.
Temperature setting for the Gen 1 is an estimate as there are no markings on the knob.
What is the warranty like?
AosBath provides the longest full onsite warranty for water heaters in Singapore.
This is not a partial warranty. That means you have zero out of pocket costs.
This warranty will cover you for three years on transport, parts, and labour.
Is the temperature gauge on Gen 1 accurate?
The gauge is not marked. It can only give you an rough guide.
If the needle points to the right, it means there is hot water in the tank.
How to use the heater?
Recommended settings
• Turn knob to max, fully clockwise
• Switch on 15 min before use
• Power off after use
Resources
Product Specifications
| Power (kW) | 2.0-2.2 |
|---|---|
|
Voltage/ frequency (V/Hz) |
220~230 / 50 |
|
Temperature range (°C) |
35 — 75 ± 5 |
|
Rated water pressure (MPa) |
0.8 |
|
Waterproof grade |
IPX4 |
| Capacity (litres) | 30 lit | 40 lit | 50 lit | 80 lit | 100 lit |
|---|---|---|---|---|---|
|
Length (mm) |
605 |
710 |
830 |
860 |
1025 |
|
Width (mm) |
360 |
360 |
360 |
463 |
463 |
|
Height (mm) |
360 |
360 |
360 |
463 |
463 |
|
Weight (kg) |
17 |
19 |
21 |
31 |
35 |
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- Longest Full Warranty in Singapore - 3 years full onsite warranty.
- Money Back Guarantee - Full refund if heater cannot be installed.