Best Electrolux Tankless Water Heaters for Under Sink: 3 Spec-Based Picks

Quick picks

The best fit for you

• You need a compact plug-in unit for a single sink Electrolux 1.5 Gal 120V Under Sink Heater Its 120V voltage allows standard plug-in installation without new wiring.
• You want the smallest footprint available for tight spaces Electrolux 8kW Under-Sink Smart Water Heater It measures only 3.35 inches wide and 8.9 inches high.
• You need reliable hot water for handwashing or dish rinsing Electrolux 8kW Under Sink Tankless Water Heater Its 8kW output provides instant heat for single sink applications.

Our 3 picks

1 Best overall

Electrolux 1.5 Gal 120V Under Sink Heater

Best for: single sink plug-in installation

Use

RV, Under Sink (what this guide is about)

Fuel Type

Electric

Capacity

1.5 Gallon

Voltage

120V

Certification

CSA

Dimensions

10.1 x 12.3 in

View on Amazon: Electrolux 1.5 Gal 120V Under Sink Heater Affiliate link

This Electrolux unit is a 1.5-gallon electric mini tank designed for under-sink installation. It operates on a standard 120V plug, measuring 10.1 by 12.3 inches. The compact size fits tight spaces in kitchens or bathrooms. CSA certification ensures safety with overheat protection. It offers a 6-year tank warranty and 2-year parts warranty. This model suits users needing reliable hot water for single fixtures without complex wiring.

Pros

• 1.5-gallon capacity provides immediate hot water
• Standard 120V plug-in installation requires no special wiring
• Compact 10.1 x 12.3 inch footprint fits under most sinks
• CSA certified with overheat protection and leak-resistant connections
• Includes 6-year tank warranty and 2-year electrical components warranty

Cons

• 1.5-gallon capacity limits continuous hot water supply for multiple fixtures
• 120V voltage provides slower recovery rate than 240V models
• Heating element is an internal component, not a tankless design

Good fit if

• You need a simple plug-in solution for a single sink
• You have limited space under the sink for installation
• You want a CSA-certified unit with a long tank warranty

Skip if

• You require tankless technology for endless hot water
• You need higher voltage for faster heating recovery
• You plan to supply hot water to multiple fixtures simultaneously

Verdict: Electrolux 1.5 Gal 120V Under Sink is a practical choice for renters or homeowners who need a compact, plug-and-play hot water source for a single bathroom or kitchen sink. Its small footprint and standard electrical requirements make it easy to install in tight spaces.

2 Best budget

Electrolux 8kW Under-Sink Smart Water Heater

Best for: single sink vanity with 240V power

Use

Under Sink (what this guide is about)

Fuel Type

Electric

Wattage

8 kW

Voltage

240V

Temperature Control

80°F - 140°F

Dimensions

8.9 x 3.35 x 3.35 inches

View on Amazon: Electrolux 8kW Under-Sink Smart Water Heater Affiliate link

This Electrolux 8kW unit heats water for a single sink. It draws 240V power and fits in tight spaces at 8.9 by 3.35 by 3.35 inches. You can adjust the temperature from 80°F to 140°F. The device includes built-in WiFi for app control. It is designed for vanity use and does not support shower applications. This model suits small households needing instant hot water at one faucet.

Pros

• 8 kW heating power for instant hot water
• Built-in WiFi and Alexa voice control
• Compact dimensions of 8.9 by 3.35 by 3.35 inches
• Adjustable temperature range from 80°F to 140°F

Cons

• Requires a dedicated 40A circuit for installation
• Not suitable for shower use
• Higher amperage requirement than standard 15A or 20A outlets

Good fit if

• You need hot water for a single sink
• You have a 240V circuit available
• You want app-based temperature control

Skip if

• You plan to use it for a shower
• You only have 120V outlets
• You need a unit for multiple faucets

Verdict: Electrolux 8kW Electric Under Sink provides reliable instant heat for sinks with smart features. It fits buyers who have the necessary electrical capacity and want app control for a single vanity.

3 Best premium

Electrolux 8kW Under Sink Tankless Water Heater

Best for: single sink handwashing and dish rinsing

Use

Under Sink (what this guide is about)

Fuel Type

Electric

Flow Rate

1.97 GPM

Wattage

8 kW

Voltage

240V

Certification

CSA

View on Amazon: Electrolux 8kW Under Sink Tankless Water Heater Affiliate link

This Electrolux unit delivers instant hot water at 1.97 GPM with an 8kW heating element. It operates on a 240V circuit and fits in tight spaces at 6.9 by 8.1 by 2.5 inches. The device reaches a maximum temperature of 104°F with a 77°F temperature rise. It is designed for single sink use and includes anti-scale protection. You get 99% heating efficiency and six safety features. It is ideal for handwashing and dish rinsing tasks.

Pros

• 8kW heating element provides 1.97 GPM flow rate
• Compact 6.9 x 8.1 x 2.5 inch footprint
• 99% heating efficiency saves energy
• IPX4 waterproof rating ensures safety
• Anti-scale separated heating element reduces maintenance

Cons

• Maximum temperature limited to 104°F
• Requires a dedicated 40A circuit
• Not suitable for shower use

Good fit if

• You need hot water for a kitchen or vanity sink
• You have a 240V electrical circuit available
• You want to save space under the sink

Skip if

• You need to power a shower
• You only have a 120V outlet
• You require temperatures above 104°F

Verdict: Electrolux 8kW 240V Under Sink Heater is a compact, efficient solution for single sink applications. It fits buyers who need reliable hot water for handwashing or dish rinsing without taking up much space.

Specifications side by side

Key Specs for Choosing Your Unit

1. Check physical dimensions

   Measure your cabinet space before buying. The Electrolux 8kW Under-Sink Smart Water Heater is very narrow at 3.35 inches wide. This allows it to fit in tight vanities where other units might not. Another model measures 10.1 inches wide and 12.3 inches high. Ensure your available width and height accommodate the specific unit you select. Proper fit prevents installation issues and ensures the door closes correctly.

2. Verify electrical voltage

   Confirm your outlet provides the correct voltage. The top pick operates on 120V, which works with standard household plugs. The other two models require 240V power. You cannot install a 240V unit on a standard outlet. Check your electrical panel to ensure you have the right circuit. Using the wrong voltage prevents the heater from working and may damage the unit or your home wiring.

3. Assess heating capacity

   Consider how much hot water you need. The first model holds 1.5 gallons of stored water. This provides a buffer for short bursts of use. The other units are true tankless heaters with 8kW output. They heat water instantly as it flows. Choose the 1.5-gallon model if you want stored hot water. Select the 8kW units for continuous on-demand heating without waiting for a tank to refill.

4. Review wattage output

   Higher wattage means faster heating. Both 8kW models deliver 8,000 watts of power. This ensures rapid temperature rise for sink use. The 120V model does not list wattage, relying on its 1.5-gallon tank. If you need quick recovery times for frequent handwashing, the 8kW specs are ideal. Ensure your electrical system can handle the load of an 8kW device without tripping breakers during operation.

5. Consider weight limits

   Check if your shelf can hold the weight. The 8kW smart model weighs 7.8 pounds. This is light enough for most under-sink shelves. The larger 120V unit is heavier due to its tank. Verify your mounting surface is sturdy. A weak shelf may sag under the weight. Proper support ensures safety and prevents damage to your cabinetry or the water heater itself during daily use.

Frequently asked questions

See also

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