Top 5 Best Commercial Electric Tankless Water Heaters (November 2024)🥇
Last Updated: 16 November 2024
In this article, we’re going to be discussing the best commercial electric tankless hot water heaters that are available on the market.
✅Why use an electric tankless water heater for your business or organization
According to this study carried out by Consumer Reports, commercial tankless water heaters, including gas units, are an energy-efficient way of getting hot water. Their ability to process large amounts of water without storing it allows these models to consume 22% less energy than tank-carrying water heaters.
Their space-saving design is another notable feature of tankless heaters. Since they don’t have to use tanks to store water, these products can afford to be small and compact.
This is precisely the reason why you can install them in tight spaces with minimal fuss.
On top of everything else, these units justify their high initial asking price by delivering a constant supply of hot water. When a hot water tap is opened, an electric element or gas burner heats the water as it travels through the pipe. That means you won’t have to wait to get hot water at the tap.
💧Top Considerations Before Purchasing
- Technical Specs – We’ve done our very best to outline each heater’s technical specs, including thermal efficiency, flow rate (GPM), energy factor and temperature range, so you have all of this information available when making any comparisons between models.
- General Specs – We’ve also included information regarding the units physical dimensions and weight
- Price – Price information has also been specified, with $ representing the lowest price and $$$$$ representing the highest. We realize that everyone has a unique budget, so this is an important consideration
- Warranty – We’ve displayed warranty information where possible.
- Customer Reviews/Ratings – We’ve gone about researching only the highest quality commercial electric tankless water heaters to include within this article, therefore you can be confident in knowing that any of these units are a great choice.
We’ve listed the following commercial tankless electric water heaters in order of cost, from the lowest price at the top ($) to the largest price ($$$$$) at the bottom:
Best Commercial Electric Tankless Water Heaters Review – Top 5
- Stiebel Eltron 2400W Commercial Electric Tankless Water Heater – 3GPM – $$ – Skip to Product
- Stiebel Eltron 224201 240V, 7.2/9.6kW – 0.26GPM – $$ – Skip to Product [Budget Electric Recommendation]
- Stiebel Eltron Tankless Water Heater Tempra 36 Trend – 5GPM – $$$ – Skip to Product [Top Electric Recommendation]
- Stiebel Eltron Tankless Water Heater Tempra 36 Plus – 3GPM – $$$ – Skip to Product [Top Electric Recommendation]
- Eemax ED024480T2T Electric Tankless Water Heater – 4GPM – $$$$ – Skip to Product
Stiebel Eltron 2400W Commercial Electric Tankless Water Heater
The Stiebel Eltron 2400W Electric Tankless Water Heater is designed to meet the hot water requirements of small-to-medium business enterprises. It also comes from a reputed manufacturer, has a respectable warranty period and has the premium construction to last for years with proper maintenance.
Technical Specs
- Thermal Efficiency: 99%
- Flow Rate (GPM): 3GPM @ 33*F
- Energy Factor: N/A
- Temperature Range: 82 to 130*F
General Specs
- Price: $$
- Dimensions: 16 x 5.2 x 17.5 inches
- Weight: 1 pound
- Warranty: 6 years on heat exchanger/leaks
Features
One of the unique selling points of this water heater is its electronically-activated and temperature-controlled operation. It calculates the amount of energy needed to meet your hot water requirements. This allows this unit to consume only as much power as required and weigh less on your electricity bills.
One can see by looking at its body that this heater comes with a rocker switch. You can use it to adjust the temperature in increments of 1* Fahrenheit. What you cannot see, meanwhile, are the four over-temperature protections built-inside this model. They ensure that it keeps going for longer.
The water that flows through the heater’s pipe does so through uniquely designed pipes. They have the necessary construction to relieve air build-up and prevent pressure from increasing inside the pipes. You can thus rest assured that there won’t be any danger of the pipes blowing up.
Pros
- Meets ANSI/UL Standard
- Certified to CAN CSA
- Built-in over-temperature protection
Cons
- Smaller flow rate
Stiebel Eltron 224201 240V, 7.2/9.6kW
Budget Electric Recommendation
Are you looking for a compact tankless water heater? Hoping to get your hands on a slim model that could outperform the bulky ones? Then the Stiebel Eltron 224201 240V might be the one for you. It is one of those unique models which punch above their budget asking price by offering high-end features.
Technical Specs
- Thermal Efficiency: 99%
- Flow Rate (GPM): 0.264 (activation)
- Energy Factor: 98
- Temperature Range: 86 to 140*F
General Specs
- Price: $$
- Dimensions: 125 x 14.1875 x 4.125
- Weight: 9 pounds
- Warranty: 7-year on heating modules
Features
Its weight and flow-rate rating make it clear that this model is meant to be employed as a point-of-use system. It isn’t one of those units that could supply hot water to the whole business. You’d have to install various models of this system at multiple faucets if your hot water requirements are huge.
Provided you have no issues about that point, you might admire the multiple features that have made this heater endearing to its users. Foremost among them is its temperature control knob. Its location on the front cover lets you easily adjust the temperature of the water coming out of the unit.
Equally admirable is the self-modulating feature of this unit. It takes help from the built-in temperature sensor to automatically adjust the water output. Also on offer is a flow-adjustment valve that lets you limit/increase the flow of the water.
Pros
- Has two temperature sensors
- One flow sensor
- Switchable via a jumper
Cons
- Low flow rate
Stiebel Eltron Tankless Water Heater Tempra 36 Trend
Top Electric Recommendation
Those of you with large businesses that have substantial hot water needs might not be impressed with what you have seen from the previous two models. That is why we have come up with the Tempra 36 Trend whose tremendous flow rate and premium construction will convince you to pay big bucks.
Technical Specs
- Thermal Efficiency: 99%
- Flow Rate (GPM): 5 GPM at 41*F
- Energy Factor: 99
- Temperature Range: 86 to 140*F
General Specs
- Price: $$$
- Dimensions: 63 x 16.63 x 14.50 inches
- Weight: 1 pound
- Warranty: 7-year leakage and 3-year parts
Features
One of the main reasons why models belonging to the Tempra series are making the waves in the market is their exclusive Electronic Temperature Control. It makes sure that even when your water requirements are varying, the output temperature of the water remains steady.
The exclusive design of this model keeps dry firing at bay and it also boasts an electronic switch for a virtually silent operation. Its copper sheathed heating element is protected with a copper cylinder that protects it from suffering any wear and tear.
Ease of installation is one more area where this model rocks the boat. You can join it to your home’s water supply with the standard ¾’’ NPT connections. There’s no compulsion on you to use T & P valve as this heater operates without one. You might also find it good to know that it has seismic proof construction.
Pros
- Silent operation
- Digital temperature display
- Auto-modulation operation
Cons
- Problems during installation if you’re upgrading
Stiebel Eltron Tankless Water Heater Tempra 36 Plus
Top Electric Recommendation
Those of you with large businesses that have huge hot water needs might not be impressed with what you have seen from the previous two models. That is why we have come up with the Tempra 36 Trend whose huge flow rate and premium construction will convince you to pay big bucks.
Technical Specs
- Thermal Efficiency: 99%
- Flow Rate (GPM): 3 GPM at 61*F
- Energy Factor: 99
- Temperature Range: 86 to 140*F
General Specs
- Price: $$$
- Dimensions: 63 x 16.63 x 14.5 inches
- Weight: 1 pound
- Warranty: 7-year leakage and 3-year parts
Features
Juxtapose the specifications of this model with the previous one, and you’d come to see that both of them are the same barring one or two things. That would obviously lead you to believe that there isn’t much that sets apart this duo. Such thoughts are misguided.
There are many differences between the Tempra 36 and Tempra 36 Plus. The former doesn’t have the advanced flow control, which automatically limits the flow rate of hot water when the user attempts to draw more water than what the unit can adequately heat.
Aside from that, the Tempra 36 Plus has two temperature preset buttons and a flow rate monitor. It also has an energy monitor that shows you the cost savings that you enjoy by using this model. All these three are features that you don’t get with the Tempra Trend series.
Pros
- Dynamic advanced flow control
- Energy and flow rate monitor
- Temperature preset buttons
Cons
- Premium-price
Eemax ED024480T2T Electric Tankless Water Heater
Mainly because it has hit the market only in the past few months, the Eemax tankless water heater cannot compete with those above in terms of reputation. However, it can very well stand up to all those models in terms of features, flow rate and shelf life. Go for it if you aren’t brand conscious.
Technical Specs
- Thermal Efficiency: 99%
- Flow Rate (GPM): 4
- Energy Factor: 99
- Temperature Range: 100 to 140*F
General Specs
- Price: $$$$
- Dimensions: 15 x 13 x 5 inches
- Weight: 42 pounds
- Warranty: 5-year leakage and 1-year parts
Features
Unlike most heavy-duty tankless water heaters that you see on the market, this one is a cinch to install. It doesn’t use its huge 4 GPM flow-rate as an excuse to force you to hire a plumber for its setup. You don’t have to solder its fittings and can mount it directly to your wall with standard hardware.
Eemax has equipped this model with a flow switch to cut down on standby heat loss. This component reduces the heater’s electricity consumption by activating its heating element only when you’re drawing water. That means that the unit won’t consume electricity when sitting idly.
Its 99% energy efficiency and 0.99 energy factor of this model should convince you that this model won’t weigh heavily on your monthly energy bills. Throw into the mix its steel construction and no-delay water delivery, and this heater does enough to justify its astronomical price tag.
Pros
- Easy to install
- Glass-reinforced heating chambers
- Flow switch minimizes heat loss
Cons
- High price
Conclusion
In conclusion, which of the commercial electric tankless water heaters should you choose?
It’s important to highlight that we realize everyone has different needs and requirements, alongside an entirely different budget.
Therefore we try not to make solid recommendations, as we don’t know your unique requirements, although we’re aware that you’re looking for a commercial/industrial capable unit.
However, based on features, reviews, and price, we personally like the Stiebel Eltron Tankless Water Heater Tempra 36 Trend. It boasts an excellent 99% efficiency and has a respectable 4.5 GPM for an electric heater.
