AO Smith 5 Star 25 Litre Vertical Water Heater: A Water Heater With Few Rivals

Last Updated on 10 May, 2024 by Sourav Roy

AO Smith is one of the leading brands in water heaters, and their 5-star 25-litre vertical water heater is a popular choice among consumers. The AO Smith 5 Star 25 Litre Vertical Water Heater is known for its efficiency and durability, making it a top choice for those looking for a quality water heater. That’s why we picked it out and decided to give it a closer look.

AO Smith 25 Litre 5 Star Vertical Water Heater



  • Product Dimensions: 33.8 x 33.8 x 64.4 cm
  • Item Weight: 37.9 Kilograms
  • Pressure Rating: 8 Bars
  • Included Components: Water Heater, Manual, Mounting Screws
  • Installation: Provided
  • Storage capacity: 25 Litres
  • Inner material: Blue Diamond Glass
  • External material: Heavy Gauge Alloy Steel
  • Warranty: 7 Years
  • BEE Rating: 5 Stars
  • Additional protection: Thermal Cut Out, Multi-functional Safety Valve
  • Heating element: Anode Rod

Important features

  • Corrosion-resistant blue diamond glass for durability.
  • Durable outer material that comprises heavy gauge alloy steel.
  • Sleek design that matches your room décor.
  • Glass-coated element prevents the formation of scale and prolongs lifespan.
  • Thermal cut-out protects the appliance from power fluctuations.
  • Inlet water diffuser that allows water to flow in small streams.
  • A multi-functional safety valve that prevents pressure build-up in the tank.

AO Smith 25 Litre 5 Star Vertical Water Heater 1


  • Energy-efficient.
  • High performance and doesn’t leak.
  • Can withstand high water pressure.
  • Durably made.
  • Sleek design.
  • Ensures maximum safety.
  • Great for a family of up to 3 people.


  • Additional installation charges.
  • Insulation quality is worse than expected.
  • The temperate control knob and neon indicators aren’t very convenient.


Details About The AO Smith 5 Star 25 Litre Vertical Water Heater

AO Smith 25 Litre 5 Star Vertical Water Heater 2

Plenty Of Storage Capacity: The heater has a 25 litres storage capacity, which can serve the easily needs of a medium-sized Indian family of 2-3 people. It can even handle baths for 3 people without any issues.

It Has Remarkable Durability: When looking for a geyser, you want something that will last for a long time. Fortunately, you can rely on the AO Smith model, as it is built to last. To begin, the inside material of the tank is corrosion-resistant, and the outer section is composed of robust heavy-gauge alloy steel. The heating element is also glass coated to avoid scale formation and increase lifespan.

Sleek And Practical Design: Unlike older models that require significant space to install, the AO Smith geyser has a sleek design that takes up less wall space. Hence, it is a viable choice for people living in places with limited space. It’ll fit nicely, and you can set it up with minimal effort.

Offers Excellent Value For The Price: This AO Smith geyser is not only reasonably priced at first, but it can also help you save a large amount of money in the long run. It has a 5-star BEE rating, which is the highest available.

Comes With Enhanced Safety Features: Sometimes, the power supply in most parts of India can be erratic, damaging electrical appliances due to a surge. With this model, there’s a thermal cut-out which takes care of fluctuations and offers ample protection for your heater.

Easily Handles Pressure Build-ups: When water is heated, it expands, putting a lot of pressure on the tank. The AO Smith geyser is equipped with a multi-functional safety valve that immediately releases pressure if it gets too high. As such, you’ll never have to worry about any issues caused by excessive pressure.

Recommended Reading: 11 Best Geyser (Water Heaters) In India 2024 – Instant & Storage


Notes About This Model

Accessibility Not As Good As Expected: Although the design is sleek and compact, this, unfortunately, makes the geyser a little difficult to access. The controls are placed at the bottom instead of the top, which can be inconvenient for some people.

Extra Charges During Installation: AO Smith doesn’t have much presence in smaller cities, so the technician might have to travel from another city. This will add to the cost of installation. We didn’t notice any information related to this in the product description, which is quite an inconvenience. If you have to pay extra for installation, get in touch with AO Smith’s customer service so that you can have the heater installed by a local specialist instead and still maintain the warranty.

Recommended Reading: Instant geyser vs Storage geyser – Know What’s right for you.

AO Smith 25 Litre 5 Star Vertical Water Heater 3

Frequently Asked Questions

Can I use this geyser in a multi-story building?

Yes, you can use it in a multi-story building since it can handle high pressure.

Can I adjust the settings to optimal heating?

You can choose from three levels: low, medium, and high. The thermostat automatically adjusts the temperature level, especially in winter conditions.

Is the heater electricity or gas controlled?

It uses electricity.

Who does the installation, and is it free?

The company sends a technician to do the installation; however, it’s not free.

Recommended Reading: Electric Geyser vs Gas Geyser: Know the Difference

AO Smith 25 Litre 5 Star Vertical Water Heater 4


This AO Smith 5 Star 25 Litre Vertical Water Heater is fairly heavy. But, the weight is an assurance of the heavy-duty construction, meaning that the geyser can last long without issues. Plus, it doesn’t take up too much space. The design is sleek and practical, which makes it a good choice for people who need space or simply like minimalist designs. Although the installation might not be free, the unit has enhanced safety features to protect against power surges. Overall, it’s an excellent product that can easily qualify as one of the best geysers in India.

You can get the most recent details on this water heater’s availability and pricing by visiting our list of the 7 best geysers in India 2024. You’ll find all you need there.

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