Instant Geyser Vs Storage Geyser – Unveiling the Differences

Instant Geyser Vs Storage Geyser – Unveiling the Differences

When it comes to selecting the right geyser for your home, the choice often boils down to two main types: instant geysers and storage geysers. Both serve the fundamental purpose of heating water but differ significantly in their operation, efficiency, capacity, and suitability for various household needs. Understanding these differences can help you make an informed decision tailored to your lifestyle and water usage requirements.

What is an Instant Geyser?

An instant geyser, also known as a tankless water heater, is designed to heat water on demand. When you turn on the tap, cold water travels through a pipe and into the unit, where it’s heated by an electric element. This process is quick, providing hot water within a few seconds, hence the name “instant geyser.”

Pros of Instant Geysers:

  • Energy Efficiency: By only heating water as it’s needed, instant geysers can be more energy-efficient compared to storage geysers, which continuously heat and reheat water to maintain a set temperature.
  • Compact Size: Instant geysers are smaller and can be installed closer to points of use, reducing the wait time for hot water and minimizing heat loss.
  • Unlimited Hot Water: Since water is heated on demand, you theoretically have an endless supply of hot water, making instant geysers ideal for families or situations where hot water is needed for extended periods.

Cons of Instant Geysers:

  • Higher Initial Cost: The upfront cost of instant geysers can be higher than storage geysers, although savings on energy bills can offset this over time.
  • Limited Flow Rate: Instant geysers can only heat a certain amount of water at a time, which might not be sufficient for simultaneous usage across multiple outlets.

What is a Storage Geyser?

A storage geyser comes with an insulated tank where water is stored and heated. The capacity of these tanks can vary, typically ranging from 6 to 50 liters. Once turned on, the geyser heats the entire volume of water in the tank to a set temperature, ready for use when needed.

Pros of Storage Geysers:

  • Suitable for High Usage: With a large volume of hot water available, storage geysers are better suited for households with high simultaneous water usage needs.
  • Consistent Water Temperature: Storage geysers provide a consistent water temperature, even when used for extended periods.
  • Cost-Effective: Generally, storage geysers have a lower initial purchase and installation cost compared to instant geysers.

Cons of Storage Geysers:

  • Energy Consumption: They can consume more energy since the water is kept hot at all times, leading to higher electricity bills, especially in colder climates.
  • Space Requirements: The bulky size of storage geysers means they require more space, which can be a disadvantage in smaller homes or apartments.
  • Limited Supply: Once the stored hot water runs out, you must wait for the tank to refill and reheat, which can be inconvenient during peak usage times.


The choice between an instant geyser and a storage geyser depends on various factors, including your household’s hot water demand, space availability, budget, and energy efficiency preferences. Instant geysers are ideal for those prioritizing energy savings and space, offering an endless supply of hot water on demand. On the other hand, storage geysers are suited for homes with higher hot water needs, providing a large volume of hot water that’s ready to use. By weighing the pros and cons of each, you can select the geyser that best fits your needs from the best electrical manufacturing company, ensuring a warm and comforting experience for you and your family.

Frequently Asked Questions (FAQs) :

Q1. Are instant geysers more energy-efficient than storage geysers?
Instant geysers are generally more energy-efficient as they heat water on demand and do not incur heat losses from stored water, unlike storage geysers which keep a tank of water constantly heated.

Q2. Can I install an instant geyser in a large household?
Yes, you can install an instant geyser in a large household, but you may need multiple units to meet the high hot water demand simultaneously in different bathrooms or kitchens.

Q3. Are instant geysers more expensive to install?
The initial installation cost of instant geysers can be higher than storage geysers due to the need for upgraded electrical or gas infrastructure to handle the high immediate power or fuel demand.

Q4. Which geyser type is more suitable for regions with erratic water supply?
Storage geysers are more suitable for areas with erratic water supply as they hold a reserve of hot water, ensuring availability even when the supply is intermittent.

Q5. Can I retrofit my existing storage geyser with an instant geyser?
Retrofitting a storage geyser with an instant geyser is possible, but it may require significant changes to your plumbing and electrical systems to support the different operational demands.

Q6. Which geyser type is better for small living spaces?
Instant geysers are typically more space-saving than storage geysers, making them better for small living spaces where conserving space is crucial.

Q7. How often do geysers need maintenance?
Geysers should generally have an annual check-up to maintain efficiency and safety. Instant geysers often require less maintenance than storage geysers due to fewer components like tanks that can corrode or accumulate sediment.