How do Geysers Work? A Complete Guide
25th February 2025 | Written By: Rika Ash | Read Time: 3.5min | Last Updated: 25th February 2025
Do you feel the need to take a warm bath or hot shower after a long day at work? Do you feel rejuvenated after a warm bath in the morning? If your answer is yes, then geysers are a must-have appliance in your home to ensure a steady supply of hot water at any hour of the day. Let’s understand how this essential appliance functions and explore the complete mechanism of a geyser.
A geyser operates on a basic principle—it heats water using a heating element and stores this water in an insulated tank until needed. Though there are different types of geysers – storage geysers, instant geysers, gas geysers, heat pump geysers, and solar water geysers – the principle mechanism of heating remains the same. If you wish to know about each geyser type in detail, you can refer to our blog: Types of Geysers Explained: Which One Suits Your Needs Best?
Let’s now take a look at the heating process in geysers in a step by step manner:
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Water inlet and storage:
When the geyser is switched on, cold water enters through the inlet pipe and is stored in a stainless steel or glass-lined tank to prevent corrosion.
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Heating process:
The heating element – a coil or rod – is then activated. In electric geysers, this element converts electrical energy into heat. In gas geysers, the water is heated using a burner powered by LPG (liquefied petroleum gas) or PNG (piped natural gas).
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Temperature control:
A built-in thermostat regulates the water temperature by turning off the heating element once the desired heat level is reached. Many geysers also feature adjustable temperature settings, allowing users to customize heating level as per their preference.
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Insulation and heat retention:
The inner tank is surrounded by a PUF (polyurethane foam) insulation layer that helps in retention of heat and reduces energy consumption. This ensures that even after the heating element turns off, the water remains hot for an extended period.
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Hot water outlet:
When the hot water tap is opened, the heated water is released from the hot water outlet. At the same time, cold water enters through the inlet pipe, ensuring a continuous supply.
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Safety mechanisms:
Geysers come equipped with multiple safety features to prevent accidents:
- Pressure Release Valve (PRV) to prevent excessive pressure buildup inside the tank.
- Thermal Cut-off to automatically shut off the heating element in case of overheating.
- Earth Leakage Circuit Breaker (ELCB) to protect against electric shocks by cutting off power in case of a fault.
Conclusion
Geysers are a convenient solution for hot water needs. Understanding how they work and choosing the right type based on your requirements can help improve efficiency and reduce energy costs. Regular maintenance, such as descaling and checking safety features, ensures long-term performance.
Frequently Asked Questions (FAQs) :
- Q1. How often should I service or maintain my geyser? It is recommended to service your geyser at least once a year to ensure optimal performance and longevity. Regular maintenance includes checking for sediment build-up, inspecting the heating element, and ensuring proper thermostat functioning. If you notice issues like fluctuating water temperature, unusual noises, or leaks, schedule a service immediately to prevent further damage.
- Q2. Which type of geyser is best for energy efficiency? For energy efficiency, instant water geysers are the best choice as they heat water only when needed, reducing electricity wastage. However, if you require hot water for longer durations, a storage water heater with high-density PUF insulation and a BEE 5-star rating is ideal, as it retains heat efficiently and minimizes energy consumption.
- Q3. What is the best position for a geyser? The best position for a geyser is at a height of at least 6 feet from the floor to ensure proper water pressure and efficient hot water flow. It should be installed on a strong wall with proper support, maintaining a gap of at least 1-2 feet from the ceiling allows for adequate ventilation and safe operation.
- Q4. Which gas is used in a geyser? Most gas geysers use Liquefied Petroleum Gas (LPG) or Piped Natural Gas (PNG) as the primary fuel source for heating water.
- Q5. How many years does a geyser work? The lifespan of a geyser typically ranges between 8 to 12 years, depending on the quality, usage, and maintenance. Regular servicing, descaling, and proper water quality management can extend its life.
- Q6. How to use a water heater properly? To use a water heater properly, set the temperature to a safe and efficient level. Always turn off the heater when not in use to conserve electricity and reduce wear. Regularly check for leaks, sediment build-up, and ensure proper ventilation for safe and efficient operation.
