AO Smith Tankless Water Heater Reviews 2017

Water heaters are an essential part of day to day life, especially when you’re living in the cold region. In winters, we can’t do our day to day water related works, because it is too cold to wash things. Your old heater may be doing everything fine, but there is a possibility that it could get a malfunction, and you may need to spend extra on it. These tank water heaters are surely a good option, also, cheap, but with time, they consume more power than the new heater. Why to spend on repair, or further increased electricity bill, if you can easily shift for tankless water heaters.
These tankless heaters are very profitable in long run. They are very compact and lightweight. You can hang them in any corner of the bathroom, kitchen, or anywhere you want. Traditional tank heaters often require time to heat water, and then finally you can use it. If you need instant hot water, these heaters are not that reliable. Also, they consume more power than tankless, because, they need to heat the whole batch, which is not the case in tankless heaters. So it is better to change your heater to tankless ones because they are more reliable, efficient, compact, lightweight and instant.

AO Smith is well-known company for its quality heaters. They make extremely portable and lightweight heaters, which can be installed anywhere in the house. The performance of these heaters is best in the market. If you’re going to buy tankless heaters, it is suggested to go for AO Smith. Let’s review some of the units.

Best AO Smith Tankless Water Heater Comparison Chart

  • AO Smith ATI-510-N

  • Dimensions : 9.5 x 13.8 x 20.2 inches
  • Weight : 44.8 pounds
  • AO Smith ATI-310-P

  • Dimensions : 7.8 x 13.8 x 20.2 inches
  • Weight : 43 pounds
  • AO Smith ATO-110-N

  • Dimensions : 7.8 x 13.8 x 20.2 inches
  • Weight : 37.3 pounds

TOP 3 AO SMITH TANKLESS WATER HEATER REVIEWS

Editor's Choice

AO Smith ATI-510-N Non-Condensing Residential/Light Commercial Tankless Heater

This heater is on the higher end of the price but gives you unmatched performance. You can install it for your home, or commercial purpose. This heater provides you with a good flow rate, serves your need of hot water.

Specifications

  • 199,000 BTU of heat transfer
  • Dimensions:9.5 x 13.75 x 20.25
  • Weight: 44.8 pounds
  • Flow Rate: 10 Gallons per minute
  • Built in freeze protection
  • You can raise the limit manually.
  • Fuse for overheating
  • Inlet and outlet thermistors for constant temperature monitoring

Body: AO Smith automatically means quality. This heater has a stainless tightly packed body, which is insulated, and provides strong support to the inner components. This saves hell lot of energy, which could be dissipated to the surrounding in case it is absent. This saves your energy bill and further increases the efficiency. The best part is non- condensing technology, which saves energy, by transferring the heat by the factor of 0.82. This is to ensure that you get maximum energy from every part of fuel burnt. It has an average weight, not technically a lightweight heater, but surely in the segment. This whole unit is packed so beautifully, that there is hardly anything to complain about. It is one of the best AO Smith tankless water heater.

Heating: when the gas ignites, this heater provides instant hot water after the ignition. The pipes are well placed over the burner, which directly heats the pipes, and giving us the perfect temperature of hot water. This heater has decent BTU for heat transfer, and you can maintain the full flow rate, on your desired temperature. Sometimes it happens that you have to compromise with the flow, to get desired heat, but not in the case of this heater. It is one of the efficient and performing heater in the segment. There is a fuse in case of overheating, which can trigger itself in the case of the rise in temperature above safety limits. This heater gives you instant hot water, with good flow rate.

Features: There are two types of units, outdoor and indoor. You can choose by your convenience. This heater has an overheating fuse, which can prevent scalding accidents, and make your showering experience safe. Along with that, it is out and inlet thermistors, so that you can keep a check on the temperature. This makes this unit extremely safe for use. Further, with non-condensing technology, this heater provides a good energy transfer factor of 0.82, which can be a game changer in saving the energy. In the case of cold climate, the regions where water can freeze, this heater provides anti-freeze technology, so that pipes can work well, without any blockage. You can manual reset the high limit, according to the temperature of hot water you want. This gas heater has lots of functions, which makes it a right choice.

Durable: The exchange warranty of this heater is 12 years; that’s a lot of faith in a product. But AO Smith knows what they’re getting into. They have made this product extremely tough of heavy usage. You can use it continuously for days, without any problem. The burner of the heater is magnificent, made from tough alloys, having a very high melting point. It doesn’t react with the air, even at high temperatures. This is a very durable product in its segment, and worth buying.

PROS:
  • Overheating fuse
  • Inlet and outlet thermistors
  • Anti-freezing technology
  • Non-condensing technology
  • Durable
  • Energy saver
  • Compact and lightweight

CONS:
  • Expensive
  • Service is done by professional

#2

AO Smith ATI-310-P Non-Condensing Residential/Light Commercial Tankless Heater

Another heater by AO Smith, but comparatively having less flow rate, and energy transfer units. This heater is a good competitor in average heaters. This unit is sufficient for three bathrooms and may be the top rated AO Smith tankless water heater.

Specifications

  • 190000 BTU of heat transfer
  • Dimensions:7.8 x 13.8 x 20.2 inches
  • Weight: 43 pounds
  • Flow Rate: 8 Gallons per minute
  • Built in freeze protection
  • You can raise the limit manually.
  • Fuse for overheating

Body: equipped with the same type of body and parts, this heater is just smaller in size and lighter. The unit has the stainless tightly packed body, which is highly insulated, and giving strong support to the parts present inside. Insulation save good amount of energy, which could leak into the surrounding and cause energy loss. The highlighting part is non- condensing technology, which saves energy, by transferring the heat by the factor of 0.82.

This heater is very light, and you can install it at anywhere, depending upon whether it is outdoor or indoor unit. Overall, the body is compactly packed, meaning strength and reliability.

Heating: Heat is relatively good, company has maintained a good balance with heater transfer units, and flow rate, with that, you get the perfect amount of hot water, at the right temperature. Sometimes, due to increase in the flow rate, the hot water is not heated to the desired temperature. It is one of the efficient and performing heater in the market. There is a fuse in case of overheating, which can trigger itself in the case of the rise of temperature above safety limits. This heater has good heat flow to the water, and efficient enough to buy.

Features: As far as safety is concerned, this heater has an overheating fuse, which can prevent scalding accidents. Along with that, it is out and inlet thermistors, so that you can keep a check on the temperature. Further, with non-condensing technology, this heater provides a good energy transfer factor of 0.82, which can be a game changer in saving the energy. Anti-freezing technology helps to keep the pipe functional, as water can get freeze there. This heater is going to be a great companion in that cases. You can manual reset the high limit, according to the temperature of hot water you want. This gas heater has lots of functions, which makes it a right choice.

Durable: heater’s body is designed so well, packed so well, that it is extremely durable.Warranty of this heater is 12 years on the heat exchanger; that’s a lot of faith in a product. Further five years of warranty on the parts. You can take any part, whether the ignition system, burner, heat exchanger, everything is so well made and packed, that there is absolutely no chance of getting malfunctioned. AO Smith is a quality company, and that reflects from the units they make.You can expect it to last up to a decade if used correctly. There are two types of units, outdoor and indoor; you can choose according to your requirement.

PROS:
  • Overheating fuse
  • Inlet and outlet thermistors
  • Anti-freezing technology
  • Non-condensing technology
  • Durable
  • Energy saver
  • Compact and lightweight

CONS:
  • Expensive
  • Service is done by professional
  • Low flow rate

#3

AO Smith ATO-110-N Non-Condensing Residential/Light Commercial Tankless Heater

Every feature of this heater is same as the other two models, just change in flow rate and heat transfer units, to make it on a small budget. This heater is suitable for medium usage, but not for heavy duty. You can hang it at desired place, without any problem.

Specifications

  • 140,000BTU of heat transfer
  • Dimensions:7.8 x 13.8 x 20.2 inches
  • Weight: 37.2 pounds
  • Flow Rate: 6.6 Gallons per minute
  • Built in freeze protection
  • You can raise the limit manually.
  • Fuse for overheating
  • Inlet and outlet thermistors for constant temperature monitoring

Body: Chassis of the heater is very strong, holding the components good. The heat exchanger is very efficient, due to the conducting body. This saves your energy bill and further increases the efficiency. It has non- condensing technology, which saves energy, by transferring the heat by the factor of 0.82. This is to ensure that you get maximum energy from every part of fuel burnt. It is very lightweight, and compact means you can easily transfer it from one place to another. You can hang it at any height, without nay fear of falling.

Heating: this heater is perfect for the full family. This can manage a whole house, but due to the less flow rate, you can to suffer for low pressure. This heater has a good amount of BTU for heat transfer, and you can maintain the full flow rate, at your desired temperature. You don’t have to compromise on the flow rate like is some heaters, where sometimes you get not desired temperature at full potential. This heater is a performer in the case of heating. There is a fuse in the event of overheating, which can trigger itself in the event of a rise in temperature above safety limits.

Features: With non-condensing technology, this heater provides a good energy transfer factor of 0.82, which can make your gas cylinder last extra. There are two types of units, outdoor and indoor. It is your choice to the one you want. This heater has an overheating fuse, which can prevent scalding accidents, and make your showering experience safe. Also, outlet and inlet thermistors are installed, for the ones who love to keep an eye on the temperatures. In the case of cold climate, the regions where water can freeze, this heater provides anti-freeze technology, so that pipes can work well, without any blockage. You can manual reset the high limit, according to the temperature of hot water you want. Features are same as higher models. This model is comparatively low on flow rate, BTU, and budget. It still makes it decent in a house.

Durable: It is very tightly packed, and with that solid body, it can last up to a decade. The exchange warranty of this heater is 12 years on heat exchanger and five years on the components. AO Smith is giving you that much warranty because this heater is made with high quality and checked for any defects. They have earned an excellent name in the market because they give durable products. The burner of the heater is exquisite, made from tough alloys, having a very high melting point. It doesn’t react with the air, even at high temperatures.

PROS:
  • Overheating fuse
  • Inlet and outlet thermistors
  • Anti-freezing technology
  • Non-condensing technology
  • Durable
  • Energy saver
  • Compact and lightweight

CONS:
  • Expensive
  • Service is done by professional
  • Low flow rate

Read more tankless water heater reviews.

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