Instant geysers consume less electricity.
According to the reference, instant geysers utilise less electricity as they only heat water when it is needed. This is in contrast to storage water heaters, which often use more energy because they heat huge amounts of water at once and then periodically heat it to maintain tank temperature.
Understanding Geyser Types and Energy Consumption
There are primarily two main types of geysers available for homes:
- Instant Geysers (Tankless Water Heaters): These units do not store hot water. Instead, they heat water on demand as it flows through the unit.
- Storage Geysers (Tank Water Heaters): These units have a tank that stores and heats a large volume of water. They maintain the water temperature within the tank by reheating it periodically, even when not in use.
Why Instant Geysers are More Energy Efficient
The key difference in energy consumption lies in how and when water is heated:
- On-Demand Heating: Instant geysers only activate and consume electricity when a hot water tap is turned on. Once the tap is closed, the unit stops heating. This eliminates the energy wasted on keeping water hot when it's not needed.
- No Standing Losses: Storage geysers lose heat through the walls of the tank over time (known as standby heat loss). To counteract this, they cycle on periodically to reheat the water, consuming electricity even when no hot water is being used. Instant geysers, having no tank, do not experience these standing losses.
The Geysers Buying Guide on m.economictimes.com explicitly states that "Instant geysers utilise less electricity as they only heat water when it is needed." This highlights the core reason for their energy efficiency advantage.
Comparison: Instant vs. Storage Geysers
| Feature | Instant Geyser | Storage Geyser |
|---|---|---|
| Heating Method | Heats water only when a tap is opened | Heats a large volume of water and stores it |
| Energy Use | Less Electricity (On-demand heating) | More Electricity (Continuous heating & standby) |
| Standby Loss | No standby heat loss | Significant standby heat loss |
| Hot Water Supply | Continuous (as long as needed) | Limited by tank size |
Choosing an instant geyser can contribute to lower electricity bills over time due to its efficient, on-demand heating system.
