Top 8 Tankless Water Heaters for Commercial Use

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Steve Donaldson Master HVAC technician
Steve Donaldson
Master HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

Hey there! If you're in the market for a tankless water heater for commercial use, you've come to the right place. In this post, I'll be sharing with you the top 8 tankless water heaters that are perfect for commercial applications. Whether you're running a restaurant, hotel, or any other business that requires a steady supply of hot water, you'll find the perfect option among these top picks. So, let's dive in and find the perfect tankless water heater for your commercial needs!

1
EcoSmart Tankless Water Heater 27kW
✯ Final Verdict: Worthwhile Investment ✯
BUY NOW Amazon.com
8.2
2
Electric Tankless Water Heater - Energy Saving, Instant Hot Water
6.2
3
Commercial Electric Tankless Water Heater
Overall, a reliable choice
BUY NOW Amazon.com
8.1
5
Takagi Tankless Water Heater - High Efficiency
Reliable and efficient
BUY NOW Amazon.com
7.8
8
Atmor 36kW Electric Tankless Water Heater
Mixed performance
BUY NOW Amazon.com
6.9
1

EcoSmart Tankless Water Heater 27kW

$269.99
Amazon.com
as of April 12, 2024 3:08 pm
8.2
Final Verdict: Worthwhile Investment
The Tankless Water Heater Electric 27kW 240 Volt is an energy-efficient option for residential whole house showers, providing endless hot water supply with its self-modulating technology. However, it may require professional installation and has a higher upfront cost compared to traditional water heaters.
Efficient and Reliable
  • Energy-efficient
  • Endless hot water supply
  • Suitable for whole house showers
Possible Weaknesses
  • Requires professional installation
  • May have a higher upfront cost compared to traditional water heaters

Introducing the Tankless Water Heater Electric 27kW 240 Volt by Miumoon. Say goodbye to interrupted hot showers and hello to endless hot water. With this on-demand instant water heater, you'll never have to worry about temperature fluctuations or running out of hot water in the tank. It provides an unlimited supply of hot water, making it perfect for residential use and whole house showers. The sleek white design and compact size of this 27kw electric water heater will fit seamlessly into any space. With its self-modulating feature, it saves energy and ensures efficient operation. The digital display allows for easy temperature control. Upgrade your home with the Miumoon Tankless Water Heater Electric for a continuous supply of hot water whenever you need it.

Efficient and powerful heating solution
  • Tankless design
  • Electric power source
  • 27kW power output
  • Self-modulating technology
  • Digital display
  • Suitable for residential whole house shower
2

Electric Tankless Water Heater – Energy Saving, Instant Hot Water

$159.99
$139.99
 in stock
Amazon.com
as of April 12, 2024 3:08 pm
8.2
Efficient and user-friendly
The Upgrade Tankless Water Heater Electric 9KW 240V is a compact and energy-saving option for residential whole house showers. Its self-modulation feature and digital display make it easy to monitor and control, although the instructions could be improved and it only displays temperature in Celsius.
Efficiency at its finest!
  • Compact design
  • Energy-saving self modulation feature
  • Digital display for easy monitoring
Drawbacks
  • Lousy instructions and lack of information on error codes
  • Temperature displayed in Celsius, not Fahrenheit

Upgrade Tankless Water Heater Electric 9KW 240V is the perfect solution for endless hot water in your home. Say goodbye to temperature fluctuations and running out of hot water with this compact and sleek unit. While the instructions may be a bit lacking, once you get it installed correctly, you'll enjoy a continuous supply of hot water. Keep in mind that the unit displays temperatures in Celsius, but that shouldn't stop you from enjoying its performance. It may not be the most advanced model out there, but it's reliable and efficient. Just make sure to do your research on wire gauge and breaker size if you're doing a new construction installation.

Efficient
  • Endless hot water supply
  • 9KW 240V electric water heater
  • Self-modulates to save energy use
  • Digital display for easy monitoring
  • Suitable for residential whole house showers
3

Commercial Electric Tankless Water Heater

$196.80
Amazon.com
as of April 12, 2024 3:08 pm
8.1
Overall, a reliable choice
The 120VAC Commercial Electric Tankless Water Heater offers convenient undersink installation and commercial-grade performance, making it a reliable choice. However, its limited capacity and requirement for professional installation may be drawbacks to consider.
Energy efficient and compact
Drawbacks
  • Limited capacity
  • Requires professional installation

Introducing the MINI 2-A Commercial Electric Tankless Water Heater, perfect for all your undersink water heating needs! This powerful water heater operates at 120VAC and 1800W, providing a reliable and efficient solution for commercial applications. With a minimum flow activation of just 0.21 gpm, you can enjoy instant hot water whenever you need it. Made with bare wire nickel chrome elements, this tankless water heater is built to last. Designed and manufactured in Germany by MDMprint, you can trust in the quality and reliability of this product. Say goodbye to waiting for hot water and experience the convenience and efficiency of the MINI 2-A Commercial Electric Tankless Water Heater today!

Efficient and Reliable Water Heating
  • 120VAC power supply
  • Commercial-grade performance
  • Bare wire nickel chrome elements
  • Designed for undersink installation
  • Made in Germany
4

Bosch Tronic 4000 Tankless Water Heater

$185.18
$168.10
Amazon.com
as of April 12, 2024 3:08 pm
7.8
Mixed Performance
The Bosch Thermotechnology Tronic 4000 Electric Tankless Water Heater is a compact and lightweight unit that provides instant hot water, making it ideal for point-of-use applications. However, some users have reported issues with defective fittings and the unit not producing warm/hot water.
Efficient and Compact
  • Instant hot water
  • Suitable for point-of-use applications
  • Compact size
Limitations
  • Defective fittings leading to leaks
  • Unit not producing warm/hot water

Upgrade your commercial or residential water heating solution with the Bosch Thermotechnology Tronic 4000 Electric Tankless Water Heater! This 8.5 kW under-sink tankless water heater is designed to provide an endless supply of instantaneous hot water to one or more sinks. It's compact and lightweight, effortlessly fitting under sinks. With its roundagon Bosch DNA design, it blends in seamlessly with existing decor. The unit runs at 96% thermal efficiency, minimizing stand-by loss. Plus, it comes with a 5-year limited warranty on the copper heat exchanger and a 2-year limited warranty for all other components. However, please note that some reviewers have experienced issues with the unit not working or leaking fittings, so it's important to ensure proper installation.

Efficient and Reliable Water Heating
  • 8.5 KW power capacity
  • Compact and lightweight design
  • Ideal for point of use applications
  • Provides instantaneous hot water
  • Suitable for commercial or residential sinks
  • Compatible with low-flow faucets
$168.10
$185.18
as of April 12, 2024 3:08 pm
Amazon.com
5

Takagi Tankless Water Heater – High Efficiency

$1,339.00
Amazon.com
as of April 12, 2024 3:08 pm
7.8
Reliable and efficient
The Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater is a compact and energy-efficient choice for providing endless hot water on-demand. With a high flow rate of 10 gallons per minute and the ability to heat water to high temperatures, it offers great performance. However, be cautious when purchasing from a specific seller as the unit may arrive in a damaged box, and ensure you have a minimum flow rate to maintain continuous operation. Overall, it is a reliable and efficient option for your water heating needs.
Energy-Saving Solution
  • High flow rate of 10 gallons per minute
  • Condensing unit for improved efficiency
  • Ability to heat water to high temperatures
  • Compatible with PVC tubing for venting
  • Long lifespan compared to tank water heaters
Drawbacks
  • The unit may arrive in a damaged box if purchased from a specific seller
  • The water heater requires a minimum flow rate to maintain continuous operation

The Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater is a versatile and efficient option for residential and commercial applications. With its commercial grade copper alloy heat exchanger tubing, this water heater is suitable for heavier residential usage as well as small restaurants and beauty salons. It complies with Ultra-Low NOx regulations and has computerized safety features for added peace of mind. With a gas input of 199,000 BTU, it can provide endless hot water for multiple bathrooms. With its compact design and energy conservation features, it is a space-saving and efficient choice for your hot water needs.

Explore further:  Top 8 Small Apartment Heaters for Cozy Comfort
Efficient and convenient hot water
  • Endless hot water
  • On-demand usage
  • Compact and space-saving design
  • Energy conservation
  • Computerized safety features
  • No pilot light to worry about
6

Marey Gas Tankless Water Heater – Efficient Indoor Use

$890.99  in stock
Amazon.com
as of April 12, 2024 3:08 pm
7.5
Great Choice!
The Gas Tankless Water Heater by Marey is a durable and environmentally friendly option for heating water in both homes and light commercial spaces. With its LED display and natural gas power, it offers convenient temperature control and cost-effective heating. However, it may require initial installation costs and proper ventilation.
Benefits of Marey Gas Tankless Water Heater
  • Durable 316 stainless steel heat exchanger
  • Low-NOx emissions for environmental friendliness
  • LED display for easy temperature control
  • Suitable for indoor use, convenient for home and light commercial spaces
  • Natural gas powered for cost-effective heating
Drawbacks
  • Initial installation costs
  • Requires proper ventilation

Experience an upgrade like no other with the Marey Gas 30L Tankless Water Heater. This innovative water heater is designed to unlock energy efficiency and provide continuous hot water on demand. With its 316 stainless steel heat exchanger, it offers superior corrosion resistance to chlorides and acids, ensuring durability and long-lasting performance. The Marey Gas 30L tankless water heater also prioritizes low-NOx emissions for energy efficiency, making it a great choice for both home and light commercial spaces. With its sleek silver color, LED display, and compact design, this natural gas tankless water heater by Marey is the perfect addition to any indoor space.

Hot water on demand!
  • 316 stainless steel heat exchanger
  • Low-NOx emissions
  • LED display
  • Suitable for indoor use
  • Natural gas powered
  • Ideal for home and light commercial spaces
7

Atmor Electric Tankless Water Heater

$229.99
$149.99
Amazon.com
as of April 12, 2024 3:08 pm
7.3
Overall Impression: Reliable and Efficient
The Atmor 13000Watts/240V Electric Tankless Water Heater is an energy-efficient and powerful option for providing continuous hot water supply to a full bathroom. With its high wattage and included pressure relief device, it ensures efficient heating and added safety. While it has received positive reviews, it may experience performance issues after 10 years and finding replacement parts could be challenging.
Efficient & Cost-effective
  • High wattage of 13000W, ensuring efficient and powerful heating
  • Suitable for a full bathroom, providing ample hot water for multiple fixtures
  • Includes a pressure relief device for added safety
  • Positive reviews from satisfied customers
Weaknesses
  • Performance issues after 10 years of use
  • Difficult to find replacement parts

The Atmor 13000Watts/240V Electric Tankless Water Heater is a reliable and efficient option for your hot water needs. With its continuous on-demand heating, it provides hot water whenever you need it, saving you up to 50% on water heating costs compared to a traditional tank water heater. Ideal for both commercial and residential use, this water heater is easy to install and comes with a superior warranty of 2 years. However, some customers have experienced issues with leaks and the elements over time, so it's important to properly maintain and take care of the unit. Overall, the Atmor 13000Watts/240V Electric Tankless Water Heater is a great choice for those looking for a cost-effective and reliable hot water solution.

Efficient and Easy-to-Use
  • Continuous on demand hot water supply
  • Suitable for a full bathroom
  • Energy efficient – saves up to 50% on water heating costs
  • Can be used for both commercial and residential purposes
  • Comes with a pressure relief device
  • Superior warranty – 2-year limited warranty
$149.99
$229.99
as of April 12, 2024 3:08 pm
Amazon.com
8

Atmor 36kW Electric Tankless Water Heater

$594.99  in stock
Amazon.com
as of April 12, 2024 3:08 pm
6.9
Mixed performance
The Atmor 36kW 6.2 GPM Electric Tankless Water Heater is a powerful and efficient option for a 4 bedroom home, with its high power output and generous flow rate. However, there have been some issues with delayed delivery and potential cylinder wear, as well as reports of defects and customer dissatisfaction.
Efficient and Powerful
Cons
  • Delayed delivery, resulting in one extra day of cold baths
  • Thin heating cylinders that may wear through and require descaling
  • Some customers experienced defects and disappointment, requiring costly electrician services without desired results

The Atmor 36kW 6.2 GPM Electric Tankless Water Heater is a reliable and energy-efficient solution for your home's hot water needs. With its continuous on-demand heating system, you'll never run out of hot water again. This tankless water heater is ideal for a 4 bedroom home and can handle up to 8 simultaneous applications, making it perfect for residential or commercial use. It saves up to 50% on water heating costs compared to traditional tank water heaters, giving you both convenience and savings. Installation may require an electrician, but the superior warranty offers peace of mind. However, it's important to note that some customers have experienced issues with heating cylinders and recommend regular maintenance. Overall, this product delivers on its promises and provides reliable hot water for your daily needs.

Efficient and Dependable Hot Water
  • Tankless hot water heater
  • 36kW power output
  • 6.2 GPM flow rate
  • Suitable for a 4 bedroom home
  • Can support up to 8 simultaneous applications
$594.99
in stock
as of April 12, 2024 3:08 pm
Amazon.com

Explore other options!

Discover Rheem®'s Commercial Condensing Tankless Water Heaters on YouTube!

Getting the most out of your commercial tankless water heater

  • Familiarize yourself with the user manual: Start by reading the user manual provided with the tankless water heater. It will contain important instructions on installation, maintenance, and troubleshooting. This will help you understand the specific features and functions of your particular model
  • Set the desired temperature: Most tankless water heaters allow you to adjust the temperature to your preference. Locate the temperature control on the unit and select the desired temperature setting. It's recommended to start at a lower temperature and gradually increase it until you find the perfect balance between comfort and efficiency
  • Monitor water flow and usage: Tankless water heaters provide hot water on demand, based on the flow rate. Be mindful of the water flow in your home or business to ensure the heater can keep up with the demand. Additionally, keep an eye on your usage to avoid running out of hot water during peak times. Adjusting the flow rate or investing in multiple units may be necessary for heavy usage scenarios
  • Remember, if you have any specific questions or concerns, it's always a good idea to reach out to the manufacturer's customer support for further assistance. Enjoy the benefits of your new tankless water heater!

Choosing the Perfect Commercial Tankless Water Heater: Your Ultimate Buyer Guide

  • Capacity: The first thing to look for is the water heater's capacity. Consider the number of people or fixtures that will be using hot water simultaneously in your commercial space. Ensure that the tankless water heater you choose can handle the demand, providing a sufficient flow rate to meet your specific needs
  • Energy Efficiency: Another crucial aspect to consider is the energy efficiency of the tankless water heater. Look for models that are certified as energy-efficient by organizations such as ENERGY STAR. These units are designed to minimize energy consumption, helping you save on utility bills while reducing your environmental impact
  • Durability and Reliability: Lastly, it's important to invest in a tankless water heater that is built to last. Look for reputable brands with a track record of producing reliable and durable units. Reading customer reviews can also give you insights into the performance and longevity of the product. Choose a water heater that comes with a warranty to ensure peace of mind and easy maintenance if any issues arise
Steve Donaldson Master HVAC technician
Steve DonaldsonMaster HVAC technician at Quality Comfort Home Services

I am Steve Donaldson, a Master HVAC technician with a rich background in addressing heating issues, especially when it comes to various types of water heaters. Leveraging my extensive expertise, I offer insights and advice to help individuals maintain a warm and secure home environment. Reach out to me at steve.donaldson@tedreviews.com for valuable tips from a seasoned professional in the industry.

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