Digital 4L Instant Hot Water Tank

Digital 4L Instant Hot Water Tank | Under Sink Instant Hot Water System

Powerful | Precise | Compact | Reliable

2000W large capacity water heater for boiling water faucet

This digital 4L instant hot water tank features an adjustable digital touch-screen thermostat control, can select the perfect water temperature - between 45°C and 98°C(190°F and 210°F) - for the perfect tasting hot beverage.

✅ Adjustable Digital Thermostat (45°C–98°C / 113°F–208°F)
Customize the temperature precisely to suit your needs. From a warm cup of tea to instant boiling water for cooking, enjoy full control with the digital touch-screen display.

✅ High-Efficiency Heating Element (2000W)
Rapid heating with a 2000-watt element ensures your hot water is always ready-no waiting, no waste.

✅ Premium 4-Liter SUS304 Stainless Steel Tank
Built with food-grade stainless steel, this tank resists corrosion and ensures clean, safe water every time.

✅ Ultra-Quiet Operation
Integrated soundproofing technology minimizes operational noise-ideal for both home and professional environments.

✅ IPX4 Waterproof Protection
Safe to use under kitchen counters thanks to its splash-resistant IPX4-rated design.

✅ Flexible Installation
The compact 190190262mm design fits neatly under any kitchen sink. Includes wall-mounting holes and soft rubber feet for vertical or horizontal installation.

✅ Compatible With Most Faucets
Standard interface works with a wide range of boiling and 3-in-1 kitchen taps-no need to change your current setup.

✅ Certified and Compliant Worldwide
Backed by CE, UL, CB, WRAS, UKCA, ERP, ISO9001, and ISO14001 certifications, this system is ready for global markets.

✅ Long-Term Reliability
Includes a 2-year manufacturer's warranty and long service life with minimal maintenance.

Applications

• Residential kitchens
• Office pantries
• Hotel rooms
• Hospitality & catering
• Coffee stations
• OEM/ODM projects

 

4L under-counter water boiler can be installed under any cabinet of the sink.

Small size, with a hanging hole on the back, can be hung on the wall.

 

Soft rubber feet on the bottom allow it also to be placed flat anywhere underneath the counter, small space is required and available for storage of kitchen items under the counter. 

 

 

Leading Under Sink Instant Hot-Cold Dispenser And Faucet Manufacturer in China

Xiamen Smart Water Technology Co., Ltd. is a leading China under-sink instant hot water tank manufacturer, offering advanced water heating and filtration systems trusted by global brands. We provide OEM, ODM, and private label services, backed by years of R&D, international certifications, and reliable after-sales support.

✔ In-house R&D and strict quality control
✔ Trusted by international kitchen faucet brands
✔ Competitive pricing for wholesale & distributors
✔ Fast delivery from Xiamen, China

 

100%

Internal Quality Control conducts 100% water, programming, and electrical inspection during assembly.

 

50+

owned more than 50 patents

 

10%

10% of our sales revenue in R&D

 

2

2-year warranty

Ready to upgrade your kitchen or expand your product line with the Digital 4L Instant Hot Water Tank? Contact us now for OEM customization, wholesale pricing, and distributor opportunities.

Contact now

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