Best Point Of Use Tankless Water Heaters 2024

Point-of-use tankless water heaters are a smart choice for anyone who wants to enjoy hot water without wasting energy, space, or money. These devices only heat water when you need it, so you don’t have to store it in a large tank or lose heat through the pipes. They also deliver hot water faster and more conveniently, as they are located close to the faucet or shower. In this article, we will explore the advantages, varieties, and features of point-of-use tankless water heaters and help you find the best one for your needs.

Bosch US9 Water Heater

Compact and efficient, the Bosch US9 Water Heater delivers endless hot water with a sleek design. At just 12.8 inches wide and 6.6 inches high, its lightweight plastic construction fits seamlessly into any space. With 9.5 kW of power, it’s perfect for under-counter installation in tight spots, offering flexibility without sacrificing performance. Designed for light commercial use, its durable build ensures longevity, while its 98% efficiency minimizes energy waste.

Enjoy hot water on demand without the hassle of standby heat loss. The US9’s modern Roundagon Bosch DNA design adds a touch of style to any setting. Ideal for shopping malls, airports, stadiums, and offices, this tankless water heater delivers reliability and convenience in a compact package.

Pros:

• Instantaneous hot water supply
• Flexible 360-degree installation
• Compact and lightweight design
• High 98% efficiency
• Durable Roundagon Bosch DNA plastic construction
• Ideal for light commercial applications
• Energy-efficient operation

Cons:

• Hardwired installation required
• Limited to under-sink use
• No temperature or pressure relief valve needed

Ecosmart POU 3.5 Water Heater

Experience efficient and convenient hot water with the Ecosmart POU 3.5 Water Heater. Compact at 11 inches wide and 6 inches high, this 4-pound wonder is designed for simplicity and performance. With a power rating of 3500 watts and a voltage of 120 volts, it’s perfect for providing hot water to a single sink, delivering up to 1.5 gallons per minute.

Crafted from durable plastic, it’s built to last while maintaining a sleek appearance. Installation is a breeze, requiring only a 30 amp breaker and 10 AWG wire. Whether you’re in a warmer or colder climate, this heater delivers, ensuring comfort with every use. Efficient and reliable, it’s the ideal solution for your hot water needs.

Pros:

• Compact design for space-saving installation
• Quick and efficient hot water delivery at 0.5 GPM
• Easy installation with a 30-amp breaker and 10 AWG wire
• Adaptable to different climates, with a recommendation for colder regions
• Lightweight construction at 4 pounds
• Durable plastic material for longevity
• Versatile 1/2″ NPT connection fittings
• Powerful 3.5 kW output for consistent performance
• Maximum temperature rise of 47.8°F at 0.5 GPM

Cons:

• Limited to providing hot water for one sink
• A recommended upgrade (POU 6) for colder climates may be necessary
• The maximum temperature rise decreases at higher flow rates (1 GPM and 1.5 GPM)
• Suitable for smaller-scale water heating needs

StiebelEltron 074050 Water Heater

Elevate your home’s water heating efficiency with the StiebelEltron 074050 Water Heater. Boasting a sleek white and grey design, this powerhouse operates at 3000 watts and 120 volts, offering instant hot water without the energy-intensive drawbacks of traditional heaters. Its hydraulically controlled system ensures quiet operation while consuming up to 50% less power than storage heaters, translating to significant savings on utility bills. Equipped with a resettable safety high limit switch, this unit prioritizes safety, preventing dry fires and premature failures for peace of mind.

Say goodbye to bulky tank units and hello to lower installation costs with the StiebelEltron DHC 3-1. Weighing just 4.6 pounds, its compact design fits seamlessly into any space, providing hot water on demand without sacrificing performance. Available in various kW sizes, this water heater offers versatility tailored to your household needs. Upgrade today and experience the convenience, efficiency, and reliability of the StiebelEltron 074050 Water Heater.

Pros:

• Up to 50% less power consumption
• Instant hot water in various kW sizes
• Hydraulically controlled for quiet operation
• Resettable safety high-limit switch
• Lower installation costs compared to tank-type units
• Sleek white and grey design
• Compact and lightweight at 4.6 pounds
• Reliable 120 volts, 3000-watt performance

Cons:

• Battery-powered (may require occasional replacement)
• Limited color options (white and grey only)

EcotouchTankless Water Heater

Unveiling the Ecotouch Tankless Water Heater: your instant, reliable solution to endless hot water. Measuring 7.5 inches in width and 11 inches in height, this sleek white unit boasts a 5.5 KW heating system for consistent temperatures of 116°F or higher, eliminating the waiting game for lukewarm water.

Crafted with overheat protection and an LED display, it’s not just hot water—it’s smart water. With a 98% energy efficiency rate, it adapts power input based on flow rate, ensuring comfort without scalding. As compact as an oatmeal box, it fits seamlessly into any space, from kitchens to salons. Say goodbye to temperature guesswork and hello to effortless hot water with Ecotouch.

Pros:

• Instant and consistent hot water
• Smart self-adjustment for optimal energy efficiency
• Easy temperature control with digital display
• Compact design for versatile installation
• Multiple safety features for peace of mind
• ETL-approved and UL-qualified for durability

Cons:

• Requires a 240V power source
• Limited to point-of-use applications
• The remote control is only available in the Black model

Rheem RTEX-13 Water Heater

Elevate your home’s hot water system with the Rheem RTEX-13 Water Heater. Crafted with precision, this 13 KW heater boasts a sleek gray design with a compact size of 8.25 inches in width and 12.63 inches in height. Its LED display offers intuitive temperature control, ensuring accuracy down to the degree. Featuring durable copper immersion heating elements, this unit guarantees longevity and efficiency, with field serviceability for added convenience.

Enjoy simple installation with the included adapters and 1/2-inch compression water connections. With self-modulating power control, it adapts to your household’s needs effortlessly, while its 99.8% energy efficiency saves on utility costs. Threaded for easy replacement and equipped with a water-saver shower head, this heater combines performance with eco-conscious design, delivering a flow rate of up to 3.17 gallons per minute. Say goodbye to cold showers and hello to consistent, reliable hot water with the Rheem RTEX-13.

Pros:

• External, adjustable digital thermostatic control for precise temperature settings
• Durable copper immersion heating elements for longevity
• Self-modulating power control enhances energy efficiency
• Simple installation with included 1/2 NPT adapters
• 99.8% energy efficiency rating
• LED display for easy monitoring
• Water-saver shower head included (1.5 GPM)
• Compact dimensions (8.25 inches width x 12.63inches height)

Cons:

• Battery-powered, may require occasional replacement
• Limited capacity (1.5 gallons)
• Suitable for smaller water heating needs

Buying Guide for the Best Point-of-Use Tankless Water Heaters

Point of use tankless water heaters, also known as instantaneous or on-demand water heaters, have gained immense popularity in recent years due to their energy efficiency, space-saving design, and endless supply of hot water. Unlike traditional tank-based water heaters, these compact units heat water directly as it passes through the device, eliminating the need for a storage tank and the associated standby energy losses. Whether you’re renovating your bathroom, upgrading your kitchen, or seeking a reliable water heating solution for a specific area, a point-of-use tankless water heater can be an excellent investment.

Factors to Consider

Water Demand and Flow Rate

One of the most crucial factors to consider when selecting a point-of-use tankless water heater is the water demand and flow rate required for your specific application. These units are designed to provide hot water for a single outlet or a limited number of fixtures, making it essential to assess your hot water needs accurately. Consider the maximum flow rate required for activities such as showering, running the kitchen sink, or operating appliances like dishwashers or washing machines.

Installation Location and Venting Requirements

Point of use tankless water heaters require proper venting to expel exhaust gases safely. Depending on the fuel type (natural gas or propane), the installation location must meet specific venting requirements. Consider the proximity to exterior walls or existing venting systems to ensure proper installation and compliance with local building codes.

Energy Source and Efficiency

Point of use tankless water heaters are available in electric and gas-fired models, each with its own advantages and considerations. Electric units are generally more energy-efficient but may require upgrading your electrical panel or circuit breakers to accommodate the increased power demand. Gas-fired models, on the other hand, offer faster heating capabilities but require proper venting and gas line connections.

Temperature Rise and Water Temperature Stability

The temperature-rise capability of a point-of-use tankless water heater determines how much the unit can raise the temperature of the incoming cold water. Consider the desired output temperature and the temperature of your incoming water supply to ensure the unit can meet your hot water needs. Additionally, some models offer better temperature stability, minimizing fluctuations during use.

Compact Design and Accessibility

One of the key advantages of point-of-use tankless water heaters is their compact size, making them suitable for installation in tight spaces like closets, under sinks, or in cabinets. However, it’s essential to consider accessibility for maintenance and servicing when selecting the installation location.

Safety Features and Certifications

Look for point-of-use tankless water heaters that meet safety standards and carry certifications from reputable organizations like Underwriters Laboratories (UL) or CSA Group. Safety features such as overheat protection, automatic shutoff, and child locks can provide added peace of mind.

Conclusion

Investing in a point-of-use tankless water heater can be a wise decision for homeowners seeking energy efficiency, space-saving solutions, and an endless supply of hot water. By considering factors such as water demand, installation requirements, energy source, temperature rise, and safety features, you can select the ideal unit that meets your specific needs. Remember to consult with a qualified plumbing professional for proper installation and adherence to local building codes.

Frequently Asked Question

What is a point-of-use tankless water heater?

A point-of-use tankless water heater is a compact, on-demand water heating unit designed to provide hot water directly at the source of demand, such as a single sink or shower. Unlike traditional water heaters with storage tanks, these units heat water instantaneously as it flows through, eliminating the need for a large reservoir of hot water.

How does a point-of-use tankless water heater work?

Point-of-use tankless water heaters work by activating a heating element, typically powered by electricity or gas, when hot water is requested at the tap. As water flows through the unit, it heats up rapidly, providing a continuous supply of hot water as long as there is demand. Once the tap is turned off, the heater stops heating, conserving energy.

What are the benefits of using a point-of-use tankless water heater?

Point-of-use tankless water heaters offer several advantages, including energy efficiency, space-saving design, and endless hot water supply. Since they heat water only when needed, they eliminate standby heat loss, resulting in lower energy bills. Additionally, their compact size makes them ideal for installations in tight spaces, such as under sinks or inside cabinets.

Are point-of-use tankless water heaters suitable for all applications?

While point-of-use tankless water heaters are efficient and convenient for supplying hot water to specific fixtures, they may not be suitable for whole-house applications or scenarios with high simultaneous hot water demand. For larger households or situations requiring hot water in multiple locations simultaneously, a whole-house tankless water heater or a hybrid system may be more appropriate.

What factors should be considered when choosing a point-of-use tankless water heater?

When selecting a point-of-use tankless water heater, consider factors such as the desired flow rate, energy source (electricity or gas), installation requirements, and warranty coverage. Ensure the unit is appropriately sized to meet the hot water demand of the intended application and that it complies with local building codes and regulations. Additionally, consider the brand reputation, customer reviews, and after-sales support when making your decision.