Search Results
Products are chosen independently by our editors. Purchases made through our links may earn us a commission.

5 Best Tankless Water Heaters

Updated
Expert product tester and reviewer providing unbiased evaluations and ensuring top-quality consumer goods.
Updated

Main Features

  • Advanced self-modulating technology
  • Digital temperature control
  • Compact design
  • Energy-efficient

Product Overview

The EcoSmart ECO 27 tankless water heater is a top choice for those seeking an energy-efficient solution for their hot water needs. With its compact design, it can be installed in small spaces, making it ideal for apartments and smaller homes.

The heater uses advanced self-modulating technology to adjust energy output based on the amount of hot water needed, ensuring maximum efficiency. It is capable of heating up to 6.5 gallons per minute, making it suitable for households with multiple hot water demands simultaneously.

The digital temperature control allows users to set the desired temperature in increments of 1 degree, providing precise control over the water temperature.

PROS
  • Energy-efficient
  • Compact size
  • Precise temperature control
  • Good for multiple simultaneous uses
CONS
  • Requires professional installation
  • May need electrical upgrades

Product Specifications

  • GPM 6.5
  • Wattage 27 kW
  • Dimensions 17 x 17 x 3.75 inches
  • Weight 14 pounds

Main Features

  • Natural gas-powered
  • Digital controller
  • Built-in recirculation pump
  • Safety features

Product Overview

The Rinnai V75iN is a natural gas-powered tankless water heater known for its reliability and high performance. It can deliver up to 7.5 gallons per minute, making it suitable for medium-sized households with moderate hot water needs.

The unit features a compact design that can be installed indoors, conserving valuable space. The Rinnai V75iN is equipped with a digital controller that allows for easy temperature adjustments and monitoring.

It also has a built-in recirculation pump, which ensures that hot water is available instantly, reducing water wastage. Additionally, the unit is designed with safety features such as temperature lock and error code indicator.

PROS
  • High flow rate
  • Instant hot water
  • Compact design
  • Safety features
CONS
  • Higher initial cost
  • Requires gas line installation

Product Specifications

  • GPM 7.5
  • Wattage 180,000 BTU
  • Dimensions 14 x 9.3 x 23 inches
  • Weight 46 pounds

Main Features

  • Advanced flow control technology
  • Digital display
  • Copper heating system
  • Sleek design

Product Overview

The Stiebel Eltron Tempra 24 Plus is a top-of-the-line electric tankless water heater that offers advanced features and reliable performance. It utilizes advanced flow control technology to ensure a constant temperature output regardless of water flow.

The unit is capable of delivering up to 4.68 gallons per minute, making it suitable for households with moderate hot water demands. The Tempra 24 Plus features a sleek, modern design with an easy-to-use digital display for temperature adjustments.

It also has a robust copper heating system that ensures durability and long-term performance. The unit is designed for easy installation and requires minimal maintenance.

PROS
  • Constant temperature output
  • Durable construction
  • Modern design
  • Easy installation
CONS
  • Higher initial cost
  • Requires professional installation

Product Specifications

  • GPM 4.68
  • Wattage 24 kW
  • Dimensions 14.5 x 16.5 x 4.6 inches
  • Weight 15.4 pounds

Main Features

  • Natural gas-powered
  • Compact design
  • Advanced safety features
  • Digital remote control

Product Overview

The Takagi T-KJr2-IN-NG is a natural gas tankless water heater designed for efficiency and compactness. It provides up to 6.6 gallons per minute, making it suitable for small to medium-sized households.

The unit features a compact design that allows for flexible installation options, including indoor installation. The T-KJr2-IN-NG is equipped with advanced safety features, including freeze, overheat, and surge protection.

It also has a digital remote control for easy temperature adjustments. The unit's energy efficiency helps reduce utility bills while providing a continuous supply of hot water.

PROS
  • Efficient performance
  • Compact size
  • Safety features
  • Flexible installation
CONS
  • Requires gas line installation
  • Limited flow rate for larger homes

Product Specifications

  • GPM 6.6
  • Wattage 140,000 BTU
  • Dimensions 20.3 x 13.8 x 6.7 inches
  • Weight 38 pounds

Main Features

  • Electric-powered
  • Compact design
  • Digital temperature control
  • Copper immersion heating elements

Product Overview

The Rheem RTEX-18 is an electric tankless water heater designed for efficiency and convenience. It features a compact design that allows for easy installation in tight spaces. The unit provides up to 4.

4 gallons per minute, making it suitable for households with moderate hot water demands. The RTEX-18 is equipped with an easy-to-use digital temperature control for precise adjustments. It also features durable copper immersion heating elements for long-lasting performance.

The unit's on-demand heating system ensures that hot water is available whenever needed, reducing energy consumption and utility costs.

PROS
  • Energy-efficient
  • Compact size
  • Precise temperature control
  • Durable construction
CONS
  • Limited flow rate
  • Requires professional installation

Product Specifications

  • GPM 4.4
  • Wattage 18 kW
  • Dimensions 14.5 x 14.5 x 4 inches
  • Weight 8.5 pounds