AO Smith Tankless Water Heater Reviews

AO Smith Tankless Water Heater Reviews

A tankless water heater is becoming everyone’s first choice when it comes to heating water. Though the price is quite high, you can be sure that it will be a good investment in the long run.

You will get instant hot water supply with a simple turn on the faucet. The water gets heated up only the time you are in need of it, and other than that, the temperature of it stays normal. This helps in preventing electrical consumption and helps in reducing your electricity bill.

Unfortunately, the traditional tank-based one is losing its demand and value with time because of its multiple drawbacks. This old model will heat the water continuously despite you the fact you are in need of it or not.

This won’t only release greenhouse gases into the atmosphere but will increase your electricity bill along with it. Sounds gruesome, right!

As it is the perfect time for you to switch to the tankless water heater, the ultimate challenge arises when you have to pick the kind that will give the best performance.

In the list of top-ranked heating systems, AO Smith is considered one of the top brands. It is very famous for its innovative devices and is growing at a very fast pace due to its remarkable performance worldwide.

Following the article, you will get an honest review of the AO Smith Tankless Water Heater. Let’s check it out.

AO Smith ATO-110-N

AO Smith ATO-110-N

You can use this model in residential or even commercial purposes as it is very flexible in both cases. This water heater is a non-condensing one, which means it will push the exhaust gases outside with the help of the ventilation system, and as a result, some of the heat will be lost to the surroundings.

You will be getting around 80% of efficiency from this model.

The water flow rate is remarkable, and it is running around 6.6 gallons for every minute. This makes it a perfect fit for a midsized home. You will find two categories of this model, one is outdoor, and the other one is indoor. You will be able to use natural or propane gas for it to operate smoothly.

It is highly durable and very easy to use. It will take a couple of minutes for you to get used to it. There are various safety features like a flame sensor, fuse (overheat), and many more to prevent any kind of uncertain accidents.

The warranty for it is huge, and you will be surprised to know that you will get a 12 years warranty on the heat exchanger (residential purpose) and 5 years on the parts.

AO Smith ATI-310-P

AO Smith ATI-310-P

ATI-310-P is quite powerful than the previous one. You will get a water flow rate of around 8 gallons for every minute, and due to this, you will be able to get warm water throughout your home, including the kitchen. Dishwashing and hot shower won’t be a problem if you buy this model.

You will find safety features for yourself and also for the heating system. For the device, there is a freezing protection system that will shield the pipes from getting frozen in winter. In the case of yourself, there is a built-in flame sensor (fire warning), thermistors (monitoring water temperature), etc.

The warranty period is the same as the previous one. Overall the benefit that comes from this model proves that your investment won’t go to waste.

AO Smith ATO-510-N

AO Smith ATO-510-N

This one is the most powerful of all the ones mentioned above. Like the ATO-110-N, it is also a non-condensing heater. The water flow rate is 10 gallons per minute and very much suitable for residential or commercial purposes.

If you go to the store, you will two types of this model (indoor and outdoor), and you should go for the one according to your requirements.

Like the previous model, there is a freezing protection system to work flawlessly in winter or other cold atmospheres. There is also a cut-off fuse (overheat) in case you accidentally adjust the temperature to an unimaginable extent.

With the help of the thermistors, you will be able to track the temperature and re-adjust it in times of emergency. To protect yourself, this heater is a must buy, and not only that, it is built in a way that it can shield itself.


So there you go, the reviews of AO Smith Tankless Water Heaters. Go through their benefits and features and pick the one that will fit with your budget and other criteria.

Have an enjoyable day.