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About this item
Bajaj Eternal Series Pentacle Digi 25L Water Heater Review
A storage water heater becomes more convenient when it offers more than basic heating. The Bajaj Eternal Series Pentacle Digi 25L combines a large storage tank with digital controls, remote operation, preset functions, and multiple safety features.With its 25-litre capacity, 5-star energy rating, and 8-bar pressure support, it is designed for households that need a larger quantity of hot water for regular bathroom use.
Practical 25-Litre Storage Capacity
The 25-litre tank gives this water heater more storage than compact 10L or 15L models.That makes it more suitable for households where multiple people may need hot water or where a larger quantity is preferred for bathing.
Actual usable hot-water quantity will depend on the selected temperature, incoming water temperature, mixing ratio, and individual usage habits.
2000W Heating Element
The Pentacle Digi uses a 2000W heating system with Bajaj's DuraCoat non-stick heating element.The coating is designed to help improve resistance to scale-related wear, which can be useful in areas where water contains higher mineral levels.
Heating time will vary depending on the starting water temperature, selected setting, and surrounding conditions.
Digital Display and Remote Control
A major feature of this model is its digital display with remote control.Instead of relying entirely on basic mechanical controls, users can conveniently view and manage settings from the digital interface.
The water heater also supports temperature and time presets, allowing you to prepare hot water according to your routine.
These features can be particularly useful for households that use the geyser at similar times each day.
Child Safety Mode
The Pentacle Digi includes a child safety mode intended to provide additional protection around hot-water settings.Hot water can cause serious burns, particularly for children, so safety settings are useful when the heater is installed in a family bathroom.
Even with this feature, adults should always check water temperature before children use hot water.
8-Bar Pressure Rating
The tank is designed to withstand up to 8 bar of working pressure.This can make the water heater suitable for many multi-storey buildings and homes using pressurised water systems.
Correct installation remains essential. Water pressure, plumbing condition, inlet valves, and installation height should be assessed by a qualified technician.
5-Star Energy Rating
The 25L Pentacle Digi carries a 5-star BEE energy rating.A higher efficiency rating can help reduce standby heat loss compared with less-efficient models under comparable usage conditions.
Actual electricity consumption will still depend on factors such as water temperature settings, number of heating cycles, household usage, ambient conditions, and how long the heater remains switched on.
SwirlFlow Technology
Bajaj includes SwirlFlow technology, which the company states can provide up to 20% more usable hot water.The system is designed to improve the way hot and cold water mix inside the storage tank.
This figure should be treated as a manufacturer-rated performance claim rather than a guarantee that every household will receive exactly 20% more usable hot water.
Tank and Body Protection
The internal tank uses DuraAce technology with marine-grade glass-line coating, while the external body uses engineering thermoplastic designed to resist rust and electrical shock.A magnesium anode rod is also included to help protect the tank internally.
These features are particularly relevant for a storage water heater because the internal tank remains in regular contact with water.
Electrical and Safety Features
The Pentacle Digi includes several safety-oriented features, including:- Automatic shut-off
- 4.5kV surge protection
- Multiple safety systems
- Child safety mode
- Fire-retardant cable with 16A plug
- Pressure-handling system
- Power and heating indicators
What We Like
- Large 25-litre storage capacity
- 2000W heating system
- 5-star BEE energy rating
- Digital temperature display
- Remote control operation
- Temperature and time presets
- Child safety mode
- 8-bar pressure rating
- Auto shut-off
- 4.5kV surge protection
- DuraAce glass-lined tank
- DuraCoat heating element
- SwirlFlow technology
- Rust-resistant thermoplastic body
Things to Consider
A 25-litre storage water heater requires more wall space than compact models, so checking installation dimensions and wall strength beforehand is important.The heater also requires a suitable 16A electrical connection, proper earthing, and safe plumbing installation. Installation should be handled by a qualified professional rather than treated as a simple plug-in appliance.
Homes with hard water may still need periodic tank inspection and maintenance despite the protective coatings.
Warranty terms can also change between production batches and sales channels, so the warranty card supplied with the exact unit should be treated as the final reference.
Final Thoughts
The Bajaj Eternal Series Pentacle Digi 25L Storage Water Heater combines a useful 25-litre capacity with several convenience and safety features that go beyond those of a basic geyser.Its digital display, remote control, temperature presets, 5-star energy rating, 8-bar pressure support, child safety mode, and protected tank design make it particularly suitable for households looking for a feature-rich storage water heater.
If you need a larger geyser for regular family use and value digital controls alongside practical safety features, the Pentacle Digi 25L is worth considering.