JNOD KF Instant Tankless Kitchen Water Heater – Electric Under Sink Hot Water Heater for Kitchen Sink & Dishwasher

The JNOD KF is a compact, high-efficiency instant electric tankless water heater designed for point-of-use installations. Ideal for kitchens, bathrooms, and light commercial settings, it delivers endless hot water on demand to sinks, showers, and washing machines. With over 98% heating efficiency, precise temperature control, and optional smart connectivity, the JNOD KF offers a reliable and energy-saving solution for any space.

Technical Specifications

Model	KF
Rated Voltage	220-240V 50/60Hz
Rated Power	3.5kW /4.5kW /5.5kW/ 7kW
Colors	White/ Silver/ Green/ Customized
Control	Sensor Touch Screen/ Smart Wifi App (Optional)
Heating Element	Cast Aluminum
Temperature Range	30-55℃
Rated Pressure	0.02-0.6MPa
Housing Material	High Strength ABS
Pipe Section	G 1/2"
Product Size	22520580mm

Key Features

1. Intelligent Control – Digital & WiFi Connectivity

The JNOD KF features a digital display and touch control panel for effortless temperature setting. For enhanced convenience, the optional WiFi-enabled model allows remote control via a smartphone app, letting users adjust temperature, monitor energy usage, and set schedules from anywhere.

Smart Touch panel with LED display
WiFi Optional app control (iOS & Android)
Precision Temperature adjustment in 1° increments

2. Fast & Endless Hot Water Supply

Enjoy continuous hot water whenever you need it. The JNOD KF instantly heats water on demand, ensuring you never run out. Advanced flow control and real‑time temperature monitoring maintain output within ±1°C of the selected temperature for consistent comfort.

On‑demand No waiting – hot water in seconds
Consistent Temperature accuracy within 1°C
Unlimited Endless supply for sinks, showers, and appliances

3. Energy Save – 98%+ Thermal Efficiency

With over 98% thermal efficiency, the JNOD KF minimizes energy waste. It heats water only when needed – unlike traditional tank heaters that constantly maintain temperature. You get hot water in as little as 5 seconds, reducing standby losses and lowering utility bills.

98%+ High efficiency rating
5‑second Rapid heating
No standby Energy saved when not in use

4. Space Save & Flexible Installation

90% smaller than traditional tank water heaters, the JNOD KF fits easily in tight spaces. It can be mounted on the wall, above or under the sink, or concealed inside a cabinet. Ideal for point‑of‑use or multi‑point applications in homes, apartments, RVs, and small businesses.

Compact 90% size reduction vs. tank heaters
Versatile Under‑sink, wall, or cabinet installation
Multi‑point Can serve multiple fixtures when configured

5. Multiple Safety Protections

Safety is paramount. The JNOD KF includes: overheat protection, IP25 waterproofing, overpressure protection, anti‑scalding, and leakage protection. An intelligent fault auto‑detection system displays error codes for quick diagnosis, ensuring safe operation at all times.

Overheat Automatic shut‑off at critical temperatures
IP25 Waterproof rating for kitchen/bathroom
Anti‑scald Precision thermostatic control
Self‑diagnosis Fault codes displayed on screen

6. Easy Operation & Installation

The unit features a stepless knob and sensitive touch screen for direct temperature adjustment. A bright LED digital display shows current working status and temperature. Wall‑mounted design simplifies installation – just connect water and power, and it’s ready to use.

Intuitive Touch + knob dual controls
Readable LED display with real‑time data
DIY‑friendly Simple wall‑mount installation

7. Patent Heating Technology – No Limescale, Longer Life

Utilizing JNOD’s patent cast aluminum electric heating element, the KF ensures complete water and electricity isolation for maximum safety. The multi‑layer heating chamber creates a long circulating water path that resists limescale buildup, extending the heater’s lifespan and maintaining efficiency.

Patent Cast aluminum heating core
Safe Complete water‑electricity separation
Anti‑scale Multi‑layer design reduces mineral deposits

8. Automatic Thermostatic – ±1°C Precision

Experience shower‑ready comfort with the JNOD KF’s automatic thermostatic control. It maintains output water temperature within ±1°C (±1.8°F) of your setting, even during fluctuating water pressure. This ensures a steady, comfortable shower and safe use at sinks.

±1°C Ultra‑stable temperature
Constant No more sudden temperature swings
Safe Anti‑scald protection integrated

Global Certifications for Quality and Safety

JNOD specializes in electric tankless water heaters, an advanced category designed for on‑demand hot water.
Our team of seasoned technicians has developed multiple proprietary patents for instant electric water heaters
and under sink water heater applications, driven by continuous technological innovation.

We strictly adhere to the ISO international quality management system and manufacture all core components
in‑house. This vertical integration ensures consistent performance, durability, and traceability across our entire
product lines, including kitchen water heaters and under sink water heater models.

Internationally Recognized Certifications

Our range of instant water heaters holds the following internationally recognized certifications, verifying compliance
with rigorous global standards for electrical safety, energy efficiency, and reliable operation:

CCC (China Compulsory Certification) – mandatory for product safety and quality in the Chinese market.
CB (IECEE CB Scheme) – international mutual recognition of safety test reports among member countries.
CE (Conformité Européenne) – marks conformity with health, safety, and environmental protection standards for products sold within the European Economic Area.
ETL (Intertek) – certified to UL standards (UL 499) for electrical safety and performance, widely accepted in the US and Canada.

With these credentials, JNOD provides peace of mind for residential and commercial users seeking a dependable
electric water heater tankless solution. Every unit, whether for kitchen, bathroom, or
under sink installation, meets the highest global benchmarks for safety and efficiency.

FAQ – JNOD KF Instant Electric Tankless Water Heater

1. Can the JNOD KF supply hot water to both a kitchen sink and a shower at the same time?

The JNOD KF is designed as a point‑of‑use tankless water heater, optimized for serving one outlet at a time (e.g., a kitchen sink, a bathroom basin, or a shower). For simultaneous use of multiple fixtures, we recommend installing separate JNOD KF units at each point of use or considering a larger whole‑house system. It can, however, be easily switched between fixtures when not in simultaneous use.

2. Do I need a professional to install the JNOD KF under sink water heater?

While the JNOD KF features a user‑friendly wall‑mount design and comes with installation instructions, we strongly recommend hiring a licensed plumber or electrician to ensure compliance with local building codes and safe operation. Proper installation guarantees optimal performance and validates your warranty.

3. How do I switch between Fahrenheit and Celsius on the display?

The JNOD KF includes a simple toggle button on the touch control panel to switch between °F and °C. This makes it easy to adapt to US standards or personal preference. The selected unit will be shown on the LED digital display.

4. Does the JNOD KF support WiFi control and smart home integration?

Yes, the JNOD KF offers an optional WiFi‑enabled model that allows remote control via a smartphone app (iOS and Android). You can adjust temperature, monitor energy usage, set schedules, and receive notifications from anywhere, adding convenience to your instant hot water experience.

5. What safety features are included in this tankless electric water heater?

The JNOD KF is equipped with multiple safety protections: overheat protection, IP25 waterproofing, overpressure protection, anti‑scalding, and leakage protection. It also features a fault auto‑detection system that displays error codes on the screen for quick diagnosis, ensuring safe operation at all times.

6. What is the energy efficiency of the JNOD KF?

The JNOD KF achieves over 98% thermal efficiency, meaning minimal energy waste. It heats water only when needed – unlike traditional tank heaters that constantly maintain temperature – reducing standby losses and lowering your utility bills. Hot water is delivered in as little as 5 seconds.

7. What are the physical dimensions of the JNOD KF? Can it fit under a standard kitchen sink?

The JNOD KF features a compact, space‑saving design – about 90% smaller than traditional tank heaters. Its exact dimensions are [insert dimensions here, e.g., 12″ x 8″ x 3″], making it ideal for under‑sink installation, inside cabinets, or on walls. Please refer to the product manual or contact our support for precise measurements.

8. Which global certifications does the JNOD KF hold?

Our instant water heaters are certified with internationally recognized marks: CCC, CB, CE, and ETL (to UL standards). These verify compliance with rigorous global requirements for electrical safety, energy efficiency, and reliable operation, giving you peace of mind whether you use it at home or in a commercial setting.

9. What is the warranty period for the JNOD KF instant water heater?

JNOD stands behind the quality of its products. The JNOD KF typically comes with a [insert warranty length, e.g., 2‑year limited warranty] covering manufacturing defects. For full warranty details and registration, please visit our official website or contact customer support.

10. Is the JNOD KF suitable for use with a dishwasher or washing machine?

Absolutely. The JNOD KF is designed for point‑of‑use applications and can supply endless hot water directly to a dishwasher, washing machine, kitchen sink, or bathroom basin. Its compact size and high efficiency make it an excellent choice for appliances requiring a steady hot water supply.