Water heater buying guide India: which geyser size and type to buy (2026)
- Capacity: 1-3 L instant for kitchen, 6 L for one person, 10 L for a couple, 15 L for a family of 3-4, 25 L for bucket-plus-tub homes.
- Best overall: Havells Monza Pro 10 L (about 40% under MRP); hard-water areas should pick a polymer tank (Orient Enamour/Cronos).
- 5 star ratings pay back only if the geyser stays on for hours; switch-on-before-shower homes can buy 4 star.
- Every geyser needs its own 16 A point on 2.5 sq mm wiring, never a 6 A plug.
A geyser is the one appliance everyone buys in a hurry, usually in the first cold week of the year, and usually the wrong size. Buy too small and the second person showers cold; buy too big and you pay to keep water hot that nobody uses.
This guide settles the three questions that matter: which TYPE (storage, instant or immersion), which CAPACITY for your household, and which star rating actually pays for itself. Then it ranks ten heaters we stock right now across Havells, Crompton and Orient, with live market-checked prices.
Havells Monza Pro Storage Water Heater 10 L
The default bathroom geyser done right: 10 litres covers a full shower for one to two people, and Havells' pricing here is unusually sharp, around 40% under MRP at our latest market check. The safe, boring, correct choice for most bathrooms.
Orient Enamour Classic Pro 5 Star Polymer Storage 10 L
A 5 star rated 10-litre with a polymer tank, which simply cannot rust. If your area runs hard or salty water, a polymer tank outlives a standard glass-lined one, and the 5 star rating keeps standing losses (heat leaking from the tank) at the lowest bracket.
Crompton Arno Neo 2000W Storage 6 L
The compact option when the bathroom is small or the geyser serves one person. Six litres heats faster than ten, draws the same 16 A point, and mounts where a bigger tank will not fit.
Havells Instanio Prime Storage 15 L
Fifteen litres is bucket-bath territory: two buckets back to back, or showers for a family taking turns. If mornings in your house are a queue, this is the size that ends the cold-water complaints.
Orient Cronos Pro Polymer Storage 10 L
The value pick at 10 litres, again with a rust-proof polymer body. It gives up a little finish polish versus the Enamour above but keeps the tank technology that matters, at the lowest 10-litre price in our catalogue today.
Havells Rush+ Instant Water Heater
An instant heater for the kitchen sink: hot water in seconds for dishes, no tank of water kept hot all day. Instant units suit points where you need short bursts, not a full shower.
Orient Aquapro 3 L Instant Water Heater
Three litres of buffer means the water arrives hot instantly and stays hot through a long rinse. At our latest check it sits around half of MRP, which makes it the cheapest respectable instant in the catalogue.
Crompton Juno 3 L 3000W Instant
The 3000 W element recovers heat noticeably faster than 2000 W instants, so back-to-back use (a family bathroom basin at school time) does not outrun it.
Havells Zeta Immersion Water Heater 1000 W
The honest budget answer: an immersion rod from a brand you can trust, for rentals, occasional winter use, or as a backup. Heats a bucket in about 15 minutes; costs less than a family dinner.
Crompton AIMR SP1A 1000 W Immersion with IP68 Protection
If the household will use an immersion rod regularly, pay the small premium for IP68 ingress protection and a shock-proof handle. Immersion rods are the one water-heating category where the safety spec is worth every rupee.
Buying tips
- Capacity rule of thumb: 1-3 L instant for a kitchen or basin, 6 L for one person's shower, 10 L for a couple, 15 L for a family of three or four taking turns, 25 L for bucket-plus-tub households. When in doubt between two sizes, take the bigger one; a geyser thermostat stops heating when hot, so oversizing costs less than you fear.
- Star ratings on storage geysers measure standing loss, the heat that leaks away while water sits hot in the tank. If the geyser stays switched on for hours a day, a 5 star unit typically recovers its premium within two winters. If you switch it on 15 minutes before a shower, the rating matters much less.
- Tank material decides lifespan in hard-water cities. Polymer tanks cannot rust at all; glass-lined steel is the standard and fine on soft water; look for anti-scale features if your supply is borewell water.
- High-rise flats need a pressure-rated geyser. Above roughly the 6th floor, pump pressure can exceed what a standard tank tolerates; check the bar rating (8 bar covers almost every Indian high-rise) before buying for an apartment tower.
- Every storage and instant geyser belongs on its own 16 A point with 2.5 sq mm wiring, never a 6 A plug. If the bathroom has no 16 A point, budget the electrician visit along with the geyser.
- Immersion rods are for buckets, not for people: always switch off and unplug before touching the water. Buy IP-rated, ISI-marked rods only; the price difference over an unbranded one is a few hundred rupees.
Frequently asked questions
What size geyser do I need for a family of 4?
For showers taken in turns, a 15 L storage geyser is the sweet spot; the thermostat reheats between users. If two bathrooms run mornings in parallel, fit each with its own 10 L rather than one large central unit; you save piping losses and nobody waits.
Instant or storage geyser: which is cheaper to run?
For short draws (dishes, hand washing) an instant wins because nothing sits hot all day. For showers, storage wins because instants cannot sustain shower flow for long. The practical answer for most homes is both: a small instant in the kitchen and a storage unit in the bathroom.
Is a 5 star geyser worth the extra money?
If the geyser stays on for long stretches (families where hot water is on tap all morning), yes, the standing-loss savings are real. If you switch on just before use, buy the 4 star and pocket the difference.
Which geyser lasts longest with hard water?
A polymer-tank geyser (like the Orient Enamour or Cronos ranges above) cannot corrode, which removes the most common hard-water failure. On glass-lined tanks, look for anti-scale coatings and plan to replace the anode rod every couple of years.
Can I run a geyser on a 6 A socket?
No. Storage and instant geysers draw 2000-4500 W, which is 16 A territory on 2.5 sq mm wiring. A 6 A point will overheat. An immersion rod of 1000 W is the only water heater that belongs on a regular socket, and even then a dedicated point is better.
Do these prices include GST and delivery?
Prices on Elume show the ex-GST rate with the GST-inclusive amount alongside; what you see at checkout is what you pay. Delivery is free pan-India on orders above Rs 4,000, which covers every storage geyser on this list.
Compare MRP vs the Elume price across brands, with an extra 5% wholesale rate on 15+ units.
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