Best 60 Amp Tankless Water Heater

When you’re looking for a tankless water heater that can operate on a 60-amp circuit, you’re typically considering an electric unit for small to medium hot water demand. These models are perfect for smaller homes, apartments, or point-of-use applications (like a single bathroom or kitchen). They strike a good balance between energy efficiency and the ability to provide on-demand hot water.

Here are the best 60-amp tankless water heaters, each offering reliable performance and efficiency for homes with limited electrical capacity.


Top 3 Best 60 Amp Tankless Water Heaters

Heater Name Max GPM Power Rating Temp Range Best For
Stiebel Eltron Tempra 24 Plus 3.0-4.5 GPM 24 kW (60 amps) 86°F to 140°F Whole-house for small/medium homes
EcoSmart ECO 18 2.5-4.0 GPM 18 kW (60 amps) 80°F to 140°F Small homes, point-of-use
Rheem RTEX-18 2.5-4.4 GPM 18 kW (60 amps) 80°F to 140°F Small homes, bathroom or kitchen

1. Stiebel Eltron Tempra 24 Plus – Best Overall 60 Amp Tankless Water Heater

The Stiebel Eltron Tempra 24 Plus is the top pick for those looking for a 60-amp tankless water heater that can deliver enough hot water for small to medium homes. Its Advanced Flow Control system and high efficiency make it a standout performer.

Key Features:

  • Max GPM: Delivers 3.0-4.5 GPM depending on incoming water temperature, making it suitable for 2-3 simultaneous fixtures.
  • Power Consumption: Draws 24 kW, using two 60-amp breakers, ensuring energy efficiency for homes with limited electrical capacity.
  • Advanced Flow Control™: Automatically adjusts water flow to maintain consistent temperature when demand is high.
  • Temperature Range: Offers adjustable settings from 86°F to 140°F, with precise digital control.

Best For:

  • Small to medium homes with 1-2 bathrooms.
  • Homeowners looking for consistent hot water and energy savings.
  • Whole-house heating in mild to warm climates or point-of-use in colder areas.

Pros:

  • Advanced Flow Control ensures consistent hot water at all times.
  • Digital temperature control offers precise adjustment.
  • Energy-efficient with 99% efficiency, saving on electric bills.

Cons:

  • Pricey upfront, but pays off with long-term energy savings.
  • GPM may drop slightly in colder climates with lower incoming water temperatures.

2. EcoSmart ECO 18 – Best for Budget-Friendly Option

The EcoSmart ECO 18 is a more affordable option, ideal for homes with moderate hot water needs. It’s well-suited for small homes or point-of-use applications, providing reliable hot water without breaking the bank.

Key Features:

  • Max GPM: Provides 2.5-4.0 GPM, suitable for 1-2 bathrooms or a combination of sink and shower in a small home.
  • Power Consumption: Requires 18 kW and operates on two 60-amp breakers.
  • Self-Modulating Technology: Automatically adjusts energy usage based on hot water demand, improving energy efficiency.
  • Temperature Range: Heats water between 80°F and 140°F with digital temperature control for 1-degree accuracy.

Best For:

  • Budget-conscious homeowners who need a small whole-house or point-of-use water heater.
  • Small homes or apartments with low to moderate hot water demands.

Pros:

  • Affordable price compared to other electric tankless heaters.
  • Self-modulating technology improves energy efficiency.
  • Compact and lightweight, easy to install in small spaces.

Cons:

  • Not ideal for large homes or cold climates where incoming water is very cold.
  • Lower GPM compared to higher-end models.

3. Rheem RTEX-18 – Best for Point-of-Use or Small Homes

The Rheem RTEX-18 is another excellent 60-amp tankless water heater option, perfect for small homes or specific applications like a bathroom or kitchen. It’s simple to install, highly efficient, and delivers reliable hot water for point-of-use needs.

Key Features:

  • Max GPM: Delivers 2.5-4.4 GPM, enough for a shower and a sink running at the same time in warmer climates.
  • Power Consumption: Requires 18 kW, using two 60-amp breakers.
  • Digital Thermostat: Allows you to set precise temperatures between 80°F and 140°F.
  • Durable Copper Heating Elements: Built for long-term use with field-serviceable parts.

Best For:

  • Point-of-use applications like a bathroom, kitchen, or guest house.
  • Small homes needing 1-2 fixtures running at a time.
  • Homeowners looking for easy installation and low maintenance.

Pros:

  • Compact design makes it perfect for small spaces.
  • Simple installation without complicated wiring.
  • Durable components designed for long-lasting use.

Cons:

  • Limited GPM for larger homes or high-demand situations.
  • May require lower flow rates in colder climates.

Key Factors to Consider When Choosing a 60-Amp Tankless Water Heater

1. Flow Rate (GPM)

  • For smaller homes or point-of-use applications, a GPM of 2.5-4.5 is typically sufficient.
  • If you need to run multiple fixtures (like a shower and kitchen sink), aim for a heater with at least 3.0 GPM to prevent fluctuations in water temperature.

2. Temperature Control and Climate

  • Digital temperature control allows for precise settings, which is crucial when water temperatures vary based on climate.
  • In colder climates, incoming water temperatures are lower, which can reduce GPM. Choose a model with higher GPM if you live in a cold area.

3. Energy Efficiency

  • Most electric tankless water heaters are highly efficient, with ratings of 99%, meaning almost all the energy consumed goes into heating the water.
  • Look for features like self-modulating technology (EcoSmart) or Advanced Flow Control (Stiebel Eltron) to optimize energy use and prevent overheating or cold water bursts.

4. Installation Space

  • These units are compact and wall-mounted, saving space. Ensure you have enough room for installation near the necessary water and electrical connections.
  • Consider the electrical panel capacity—if your panel isn’t able to handle the amperage, you may need an upgrade before installing a 60-amp water heater.

Pros and Cons of 60-Amp Tankless Water Heaters

Pros Cons
Energy-efficient—saves on electricity bills Lower GPM compared to larger units
Compact and space-saving May not support multiple simultaneous fixtures
No standby heat loss like traditional tanks Requires proper electrical wiring and breakers
Endless hot water on demand GPM drops in cold climates
Affordable installation with no venting Lower capacity for larger homes

Conclusion: Which 60 Amp Tankless Water Heater is Right for You?

  • If you want the best overall performance for a small to medium home or multiple-point use, the Stiebel Eltron Tempra 24 Plus offers advanced features like flow control, high GPM, and energy efficiency.
  • For a budget-friendly but effective option, the EcoSmart ECO 18 is a great choice, providing reliable hot water at an affordable price.
  • For point-of-use or small home installations, the Rheem RTEX-18 offers excellent value and reliable performance with simple installation and low maintenance.

No matter which option you choose, these 60-amp tankless water heaters will provide endless hot water, save space, and reduce energy consumption, all while fitting within your home’s electrical capacity.

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