For family size of 1-2 people 6-10 liter water geyser is enough if you take bath via bucket.
If you guys take hot water bath via shower then 15L is enough.
A lot also depends on how long is underground pipe from geyser to tap? How harsh winter is in area you live? Buy one bigger size of water heater if you live in hilly areas of India.
Bajaj Splendora 3L 3KW Vertical Instant Water Heater For Home | Geyser For Bathroom & Kitchen | High Grade SS Tank | Copper Heating Element | 1-Yr Product 2-Yr Element 5-Yr Tank Warranty 【White】
- ✅ Free Installation and Free Inlet pipes worth Rs.600 by brand.
- ✅ ABS outer body with SS tank
- ✅ Copper heating element with efficient longer life
- ✅ Suitable for 6 bar pressure
- ✅ Unique Weld free joint in outer metal body
Crompton Arno Neo 25-L 5 Star Rated Storage Water Heater (Geyser) with Advanced 3 Level Safety National Energy Conservation Award Winner 2023
- PRODUCT: Crompton's energy efficient storage water heater with fast heating
- TECHNICAL SPECIFICATIONS: Wattage: 2000 W; Capacity: 25L; Star Rating 5; Pressure 8 bar
- 3 LEVEL SAFETY: Capillary Thermostat, automatic thermal cut-out & multi-functional valve to provide higher safety
- ANTI-RUST: Fitted with specially designed magnesium anode which prevents corrosion due to hard water quality
- QUALITY COMPONENTS: ISI marked nickel coated special element to provide resistance against scale formation
Havells Instanio 3L Instant Water Heater(Geyser)| Temp. Sensing LED Indicator| Rust & Shock Proof Body| ISI Marked|With Flexible Pipes|Warranty: 5 year on Inner Tank| High Rise Compatible (White Blue)
- LED Indicator: Colour-changing LEDs that change from blue to amber to indicate the hotness of the water
- Outer Body: Rust and shock proof ABS outer body for long life
- Inner Tank: Stainless steel inner tank of 304 grade
- Power Cord: Fire retardant power cord for maximum safety
- 0.65 MPa Bar Pressure: Suitable for high rise buildings and pressure pump applications
V-Guard Zio Instant Geyser 5 Ltr Wall Mount Water Heater|Advanced Multi-Layered Safety|3000 W Powerful Heating|Strong Stainless Steel Tank|Suitable For Kitchen&Bathroom|White-Blue
- POWERFUL INSTANT HEATING: V-Guard Zio 5 Litre is powered by a superior 3 kW heating element with a copper sheath and high-grade magnesium oxide insulation for quick movement of heat
- ADVANCED 4 LAYER SAFETY: Pressure release valve for safer operations at higher pressures, ISI marked thermostat for cutting off power supply when temperature exceeds 55°C, Overheating protection through disc type snap action safety device operating at 90°C & Anti-siphon Protection for preventing the reverse flow of water
- STYLISH & ENERGY EFFICIENT : This Instant Water Heater maintains maximum heat retention with eco-friendly insulation and has an stylish colour display panel indicating the status of heat and power
- HIGH DURABILITY: Robust Inner Tank of Zio is made of high-grade 304 Stainless Steel | Rust-proof high-quality engineering polymer constitutes the Outer Body, preventing rust formation
- WARRANTY: V-Guard Zio has a warranty of 2 Year on Product, 2 Year on Heating Element and 5 Year on Inner Tank
Crompton Gracee 5 Litres instant water heater with 4 Level Advance Safety | 3000W fast heating element | Rust proof Body | 5 years tank warranty | 2 years element warranty, Wall Mounting
- Premium Finish Rust Proof Outer Body: High quality polymer engineering that prevents outer body from rusting
- Food Grade Inner Tank: 304 Grade Stainless Steel Inner Tank; also suitable to be used in the kitchen
- Powerful Heating: 3000-Watts Copper Heating Element for 33% faster heating
- 4-Level Safety: Thermostat, automatic thermal cut-out, pressure release valve and a fusible plug to ensure complete safety
- Withstands a pressure of 6.5 Bar: Suitable for high rise buildings and pressure pump applications
Crompton InstaBliss 3-L Instant Water Heater (Geyser) with Advanced 4 Level Safety (White), Wall Mounting
- Rust Proof Outer Body: High quality Thermoplastic engineering prevents rusting of the outer body
- Food Grade Inner Tank: 304 Grade Stainless Steel Inner Tank; also suitable to be used in the kitchen
- Powerful Heating: 3000-Watts Copper Heating Element for 33% faster heating
- 4-Level Safety: Thermostat, automatic thermal cut-out, pressure release valve and a fusible plug to ensure complete safety
- Withstands a pressure of 6.5 Bar: Suitable for high rise buildings and pressure pump applications
Racold Pronto Pro 3L 3KW Vertical Instant Water Heater (Geyser) | Faster Heating | Suitable for High Rise Buildings | Italian Design|3 Levels of Safety|Convenient for Kitchen & Bathroom Applications
- PUF INSULATION: the dense and thick insulation in the tank effectively retains heat, improving energy efficiency and lowering electricity costs
- FASTER HEATING: the high-capacity heating element ensures rapid access to hot water
- AUTO CUT OFF: the stem-type thermostat and cutout feature provide automatic temperature control and added safety for your water heater
- NO BACK FLOW: the anti-syphoning system prevents water from flowing back into the container, thus avoiding dry heating
- HIGH PRESSURE RESISTANCE: the water heater has high pressure withstanding capacity, which makes it suitable for high-rise buildings and high pressure pump applications
Drumstone 𝟏𝟓 𝐘𝐞𝐚𝐫𝐬 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲 Mini Portable Instant Water Geyser, Hot Cooler Heater, Electric Saving, Shock Proof for Home, Kitchen, Bathroom, Office, Restaurant, 1 L
- 【⚡ 𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐇𝐨𝐭 𝐖𝐚𝐭𝐞𝐫 𝐆𝐲𝐬𝐞𝐫】 Enjoy instant hot water with this mini portable water heater, designed for quick heating in bathrooms, kitchens, and offices. With advanced heating technology, it provides hot water in seconds, making it an essential appliance for winters and everyday use.
- 【🔋 𝐄𝐧𝐞𝐫𝐠𝐲-𝐒𝐚𝐯𝐢𝐧𝐠 & 𝐄𝐜𝐨-𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲】 Designed for low power consumption, this instant water heater ensures energy-efficient performance, reducing electricity bills while delivering continuous hot water. Ideal for eco-conscious users, it’s a cost-effective solution for daily hot water needs.
- 【🛡️ 𝐒𝐡𝐨𝐜𝐤𝐩𝐫𝐨𝐨𝐟 & 𝐇𝐢𝐠𝐡 𝐒𝐚𝐟𝐞𝐭𝐲 𝐒𝐭𝐚𝐧𝐝𝐚𝐫𝐝𝐬】 Built with shockproof and insulated technology, this mini geyser offers maximum safety while heating water. The anti-corrosive and durable body ensures long-term reliable performance, making it a safe choice for homes, hotels, and offices.
- 【🔥 𝐈𝐝𝐞𝐚𝐥 𝐟𝐨𝐫 𝐊𝐢𝐭𝐜𝐡𝐞𝐧, 𝐁𝐚𝐭𝐡𝐫𝐨𝐨𝐦 & 𝐎𝐟𝐟𝐢𝐜𝐞】 This compact instant water geyser is perfect for kitchen sinks, bathroom use, hand washing, dishwashing, and office needs. Its portable and space-saving design makes it easy to install and use anywhere you need hot water on demand.
- 【💧 𝐂𝐨𝐦𝐩𝐚𝐜𝐭 & 𝐏𝐨𝐫𝐭𝐚𝐛𝐥𝐞 𝐃𝐞𝐬𝐢𝐠𝐧】 Designed for ease of use, this mini instant geyser is lightweight, portable, and easy to install. Perfect for homes, offices, restaurants, and travel, it delivers hot water anytime, anywhere without occupying much space.
Bajaj Shield Series New Shakti 15L Storage Wall Mount Water Heater For Home|5-Star Rated Geyser|Child Safety Mode|For High Rise Buildings|10-Yr Tank 6-Yr Element 4-Yr Product Warranty 【White & Grey】
- ✅ Free Installation and Free Inlet pipes worth Rs.600 by brand.
- ✅ DuraAceTM tank with Marine grade glassline coating, DuraCoatTM Non-Stick Heating Element, DuraNteTM Thermostat and VoltageProTM – it can withstand 45KW Surge Voltage
- ✅ 10 Year Tank Warranty, 6 Year Heating Element Warranty & 4 Year Product Warranty by Bajaj
- ✅ Bajaj Shield Series New Shakti has a Unique weld free joint technology for the outer body and Pre coated metal body
- ✅ The product comes with Swirlflow Technology - 20% more hot water
V-Guard Divino DG Geyser 15 Litre Water Heater for Home | Digital Display | 5 Star Rating | Vitreous Enamel Coating | Advanced 4 Layer Safety | Suitable for Hard Water & High-rise Building | White
- Storage Water Heater; 【BEE 5 STAR RATED】: Highly Energy Efficient with Extra Thick & High Density CFC Free PUF Insulation for Maximum Heat Retention;【COUNTRY OF ORIGIN】: India
- 【ANTI-CORROSIVE & SUITABLE FOR HARD WATER USAGE】: Advanced Vitreous Enamel Coating protects the Inner Tank, Superior Incoloy 800 Heating Element ensures Sustained Performance, Extra Thick Magnesium Anode provides Added Protection
- 【66% REDUCTION IN LEAKAGE】: Single Weld Line High Grade Mild Steel Tank
- 【SAFETY ASSURED】: Advanced Thermostat & Thermal Cut-out Mechanism for Dual Overheat Protection; 5-in-1 Multi-function Safety Valve prevents excessive Pressure Build-up, Vacuum Formation & Reverse Water Flow
- 【HYGIENIC & PUNGENT-FREE WATER】: Multi-layer protection against Corrosion & Scaling
If your bathroom is on top floor of the house or an open bathroom? Here I recommend gas geyser as these need to be installed in open only. However buy only from renowned brand which can provide you service every year. Gas geyser need special care and maintenance. A yearly service from authorized service guy once a year at start of winter is enough for gas geysers.