Commercial tankless hot water heater that will change your expectations

Cheap tankless options disappoint—but Rheem 11kW and Rinnai CX199iN deliver exceptional performance.

Choosing the right tankless water heater is essential for efficiency and comfort. The **Rheem 11kW** offers reliable electric heating, while the **Rinnai CX199iN** excels in gas efficiency, providing 199,000 BTU and 11.1 GPM flow rate.

For commercial use, the Rinnai’s smart technology ensures optimal temperature control and energy savings, making it a standout choice.

Below, we analyze budget, lifespan, and real-user feedback.

Rheem 11kW Tankless Electric Water Heater

Rheem 11kW 240V Tankless Electric Water Heater is designed to provide on-demand hot water, ideal for residential and commercial applications. Its compact size, measuring 14.5 x 8 x 3.5 inches, and sleek design in a neutral white color ensure it fits seamlessly into any space. Made from high-quality materials, this water heater boasts a durable build that guarantees longevity and reliability.

This tankless electric water heater solves the problem of running out of hot water during peak usage times. With a flow rate of up to 2.68 gallons per minute (GPM), it efficiently supplies hot water for multiple applications simultaneously, making it perfect for families or businesses with high hot water demands.

Pros

• Self-modulating power control optimizes energy efficiency.
• Adjustable digital temperature display allows for precise temperature settings.
• Compact design saves space compared to traditional tank heaters.
• Provides consistent and continuous hot water, eliminating wait times.

Cons

• Initial installation cost can be higher than conventional water heaters.
• Requires adequate electrical capacity, which may necessitate upgrades in some homes.

The Rheem 11kW Tankless Electric Water Heater excels in performance with its advanced features. The ON/OFF dial control allows for easy operation, and the self-modulating technology adjusts the power based on the demand for hot water, ensuring efficiency and reducing energy costs. Its side 1/2″ NPT water connections make installation straightforward for most plumbing setups.

This product is best suited for medium-sized homes or small businesses that require a reliable hot water source without the bulk of a traditional tank heater. Although the upfront investment may be significant, the long-term savings on energy bills and the convenience of unlimited hot water make it a valuable addition to any property.

In summary, the Rheem 11kW 240V Tankless Electric Water Heater is an excellent choice for users seeking efficient, space-saving hot water solutions. Its robust performance and modern features cater to those who prioritize both quality and convenience.

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Rinnai CX199iN Tankless Water Heater 199,000 BTU

The Rinnai CX199iN Condensing Smart Sense Commercial Tankless Water Heater is designed to provide an efficient and reliable hot water solution for commercial settings, ideal for businesses requiring consistent hot water supply. This model operates on either natural gas or propane, making it versatile for various installations. With a powerful output of 199,000 BTU and a flow rate of 11.1 gallons per minute (GPM), it ensures that high-demand environments can access hot water without interruption.

Key specifications include its compact design suitable for both indoor and outdoor installations, thanks to the innovative Versa Vent technology. The unit boasts a thermal efficiency rating of 97%, which significantly reduces energy costs while ensuring optimal performance. The Rinnai CX199iN is perfect for restaurants, hotels, and other commercial establishments that prioritize energy efficiency and reliable hot water access.

Pros

• High thermal efficiency reduces energy bills.
• Flexible installation options for diverse settings.
• Smart Connect feature allows for easy monitoring via smartphone.
• Quick flush system simplifies maintenance.

Cons

• Professional installation is recommended, adding to initial costs.
• Requires specific venting for outdoor installations.

The performance of the Rinnai CX199iN stands out with its ability to deliver hot water on demand, making it an excellent choice for businesses that cannot afford downtime. Its Smart Connect feature allows users to manage and troubleshoot the heater directly from their smartphones, providing added convenience. However, potential buyers should consider that professional installation is necessary to ensure optimal performance, which may increase the overall cost.

This tankless water heater is best suited for commercial users who need a reliable and energy-efficient solution for high hot water demands. While it may come with a higher initial investment, the long-term savings on energy bills and maintenance make it a valuable addition to any commercial setting.

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ORBEK 18kW Electric Tankless Water Heater

The ORBEK 18kW Tankless Water Heater is designed to provide an efficient and continuous supply of hot water, making it ideal for households that require hot water for multiple fixtures simultaneously. This electric water heater operates at 240V and can deliver up to 4.17 gallons per minute (GPM), perfect for families or small businesses needing hot water for showers, sinks, and appliances. With dimensions of 17″H x 13.0″L x 3.9″W, it is compact enough to fit in tight spaces, ensuring it meets the needs of various users.

This tankless water heater addresses the common problem of running out of hot water, especially during peak usage times. Its innovative design allows for an on-demand hot water supply that reaches the desired temperature in just 3 seconds, ensuring comfort and convenience for users. The advanced technology behind the ORBEK heater minimizes scale and corrosion, enhancing its longevity and efficiency, potentially cutting electricity costs by up to 60% compared to traditional tank-style heaters.

Pros

• Provides instant hot water supply, eliminating wait times.
• Highly energy-efficient, reducing electricity costs significantly.
• Compact design saves space and allows for easy installation.
• Stable temperature control within 1°F for a consistent shower experience.
• Comprehensive safety features, including leakage and over-temperature protection.

Cons

• Requires specific electrical setup (2 x 240V/40A breakers).
• Initial installation may require professional assistance.
• Limited to indoor installation only.

The ORBEK tankless water heater stands out with its LED digital display, allowing users to easily adjust temperatures between 86°F and 140°F. This feature enhances usability, making it suitable for families with varying hot water needs. While it excels in performance and efficiency, potential buyers should consider the installation requirements and ensure their home is compatible with the heater’s specifications.

Overall, the ORBEK 18kW Tankless Water Heater is an excellent choice for those seeking a reliable and efficient hot water solution. Its blend of performance, safety, and energy savings makes it ideal for families and small businesses looking for a modern hot water system.

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Stiebel Eltron Tempra 36 Tankless Water Heater

The Stiebel Eltron Tankless Water Heater – Tempra 36 Trend is designed to provide continuous, on-demand hot water, ideal for homeowners seeking efficiency and reliability. Its compact size and sleek white design make it suitable for various home sizes, while its advanced technology ensures an unlimited supply of hot water without the need for bulky storage tanks. The unit operates on 36kW and 240V, requiring a minimum recommended electric service of 300 A, making it a powerful option for any household.

This tankless water heater solves the common problem of running out of hot water during showers or chores, enhancing the user experience by providing endless hot water without wasting energy when not in use. The eco-friendly features, including auto-modulation, further improve energy efficiency, making it a smart choice for environmentally conscious consumers.

Pros

• Continuous Flow: Enjoy hot water without interruptions, perfect for large families or homes with high demand.
• Space & Energy Saver: Its compact design saves valuable space and reduces energy consumption.
• Silent Operation: The heater operates quietly, ensuring a peaceful environment.
• Easy to Use: The digital temperature display is user-friendly, allowing for precise control over water temperature.
• Durability: Built with high-quality materials, including solid copper heating elements, ensuring longevity and reliability.

Cons

• Initial Cost: The upfront investment can be higher compared to traditional water heaters.
• Electric Service Requirement: Requires a significant electric service capacity, which may necessitate upgrades for some homes.
• Temperature Range Limitations: While it offers a wide temperature range, some users may prefer more customization options.

The Stiebel Eltron Tankless Water Heater – Tempra 36 Trend excels in performance, providing a reliable and efficient solution for hot water needs. Its standout features, such as continuous flow and silent operation, make it best suited for larger households or those with high hot water demands. Despite some minor drawbacks, such as the initial cost and electric service requirements, its overall value is undeniable. This unit is perfect for users seeking a modern, efficient, and hassle-free hot water solution.

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FOGATTI Outdoor Natural Gas Tankless Heater

FOGATTI Natural Gas Tankless Water Heater Outdoor is designed to provide instant hot water, making it ideal for homeowners with multiple outlets such as showers, sinks, and appliances. With a powerful output of 180,000 BTU and a flow rate of up to 8.1 GPM, this unit ensures that you never run out of hot water. Its compact dimensions of 26.2 x 17.1 x 7.1 inches and durable construction make it suitable for outdoor installation, even in varying weather conditions.

This tankless water heater solves the common problem of waiting for water to heat up, providing immediate access to hot water whenever needed. It is particularly beneficial for families or individuals who frequently use multiple hot water sources simultaneously. The advanced technology incorporated into the FOGATTI water heater allows for precise temperature control, ensuring comfort year-round.

Pros

• Instant hot water eliminates waiting time.
• Durable outdoor design ensures longevity and reliable performance.
• Precision temperature control maintains consistent water temperature.
• Quick installation process compatible with low water pressure.
• Trusted quality with CSA certification and excellent customer support.

Cons

• Requires a natural gas connection, limiting installation options.
• Initial investment may be higher compared to traditional water heaters.

In terms of performance, the FOGATTI tankless water heater stands out with its four-stage combustion system, which guarantees stable combustion and prevents smoke backflow. This feature enhances safety and durability, making it a reliable choice for outdoor use. The unit is best suited for medium to large households that require a consistent supply of hot water.

While the FOGATTI water heater excels in many areas, potential users should consider the need for a natural gas line and the upfront cost. However, the long-term savings on energy bills and the convenience of instant hot water make it a valuable investment.

Overall, the FOGATTI Natural Gas Tankless Water Heater Outdoor is an excellent choice for those seeking efficient and reliable hot water solutions, particularly in outdoor settings. Its innovative features and robust construction make it a standout option for modern households.

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Faq about Commercial Tankless Hot Water Heater:

1: What is a commercial tankless hot water heater?

A commercial tankless hot water heater provides hot water on demand without the need for a storage tank, making it efficient for businesses with high hot water needs.

2: How does a tankless water heater work?

It heats water directly as it flows through the unit, using gas or electricity, which eliminates standby heat loss associated with traditional tanks.

3: What are the benefits of using a tankless system?

Benefits include energy efficiency, endless hot water supply, space-saving design, and reduced risk of leaks and water damage.

4: Are there any drawbacks?

Initial installation costs can be higher, and they may require upgrades to existing plumbing or gas lines for optimal performance.

5: How do I choose the right size?

Select a model based on your peak hot water demand, considering factors like the number of fixtures and simultaneous usage in your facility.

6: How long do tankless water heaters last?

With proper maintenance, tankless water heaters can last 15 to 20 years, significantly longer than traditional tank models.

7: Is maintenance required?

Yes, regular maintenance such as descaling is recommended to ensure efficiency and longevity, especially in areas with hard water.

Conclusion

The Rheem 11kW Tankless Electric Water Heater exemplifies efficiency and compact design, making it an ideal choice for residential applications where space is at a premium. Its ability to deliver consistent hot water while minimizing energy consumption underscores its practicality for modern households.

Conversely, the Rinnai CX199iN, with its impressive 199,000 BTU capacity, caters to larger demands, ensuring a continuous supply of hot water for more extensive residential or commercial settings. This model not only enhances convenience but also embodies advanced technology, making it a formidable contender in the market.