Best Electric On Demand Water Heater (2024 Updated)

The Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23 is a top-of-the-line option for those looking for an endless supply of hot water. This tankless water heater provides on-demand hot water, meaning that you will never have to worry about running out of hot water, no matter how long your shower or how many people are using the hot water at the same time.

One of the standout features of the Stiebel Eltron 239223 Tankless Water Heater is its sleek and modern design. The compact size of this water heater saves space and does not require venting, making it an ideal choice for those with limited space in their homes or apartments. The water heater also features two different temperature memory presets, which make it easy to adjust the water temperature to meet your personalized needs.

To power the Stiebel Eltron 239223 Tankless Water Heater, you will need hard-wired 240 or 208-volt electric service. The maximum draw of this water heater is 28,800 watts at 240 volts or 21,600 watts at 208 volts. Additionally, you will need three separate dedicated 40 amp breakers with 8 gauge copper wiring. To power this water heater, a minimum of 200 amp total service is required to your residence.

Overall, the Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23 is an excellent choice for those looking for a reliable and efficient hot water system. With its on-demand hot water supply, sleek design, and customizable temperature settings, this water heater is a top choice for many homeowners and renters alike.

The Tankless Water Heater Electric 27kW 240 Volt by thermomate is an on-demand hot water solution that eliminates the need for a traditional water tank. This electric water heater provides unlimited hot water in just 3 seconds, making wait time a thing of the past. With a flow rate of 5.27GPM @35°F Rise, the heater is capable of meeting the hot water demands of a residential whole house shower.

Featuring self-modulating technology, this tankless water heater regulates the amount of energy required to heat water only when it is needed. It is 99.8% efficient, saving up to 60% on water heating costs compared to traditional tank water heaters. The wall-mounted compact size of the heater saves floor space and fits into tight spaces, making it convenient for any space.

With its auto-adjusting energy consumption based on incoming water temperature and flow, this electric water heater ensures maximum efficiency, continuous stable temperature, and optimal power usage. The digital temperature display allows you to adjust the temperature in 1° increments from 80°F to 140°F. The heating element is separated from the water tube, significantly reducing scale, corrosion, and mineral buildup on the element, achieving better performance and low maintenance.

The Tankless Water Heater Electric 27kW 240 Volt is easy to install and comes with safety protection. It is ETL certified with overheating protection, and it automatically stops heating when no water is detected. Quality workmanship ensures leakage protection.

It is important to note that this water heater requires 3 sets of double-pole 40AMP breakers to achieve 240V. It draws a maximum of 114Amp and requires a wire gauge of 3 x 8AWG. The unit size is 17.12" x 13.12" x 3.12", and the water connection is 3/4" NPT.

The Tankless Water Heater Electric 27kW 240 Volt comes with a 2-year limited warranty and 24/7 customer support services. When purchasing this water heater, it is essential to ensure that it is the correct size for your hot water needs.

The Airthereal Electric Tankless Water Heater is an innovative solution for those who want to enjoy hot water on demand without the hassle of a traditional hot water tank. With its 18kW power rating and 240 volts, this water heater provides endless hot water without the need for preheating, temperature fluctuations, or running out of hot water in the tank.

One of the advantages of this electric tankless water heater is its space-saving design. Unlike traditional hot water tanks, this wall-mounted water heater uses 90% less space, making it an ideal choice for small homes or apartments.

The Airthereal Electric Tankless Water Heater also boasts energy-saving features. By heating water only when it's needed, this water heater saves up to 50% on water heating costs compared to a typical tank water heater. Its self-modulating temperature technology ensures that energy is only used to heat up water while it's being used, resulting in significant energy savings.

However, it's important to note that this water heater requires specific electrical specifications for installation. It needs 240 voltage, 2 x 40 AMP circuit breakers, and a set of 2 x (8AWG/2) wires. Therefore, it's recommended to check if your breaker panel meets these specifications before purchasing.

Safety is also a top priority when it comes to the Airthereal Electric Tankless Water Heater. It features high-temperature protection, dry heating protection, and electrical leakage protection, ensuring that it's safe to use. Furthermore, the electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

In summary, the Airthereal Electric Tankless Water Heater is an excellent choice for those who want endless hot water on demand without the hassle of a traditional hot water tank. Its space-saving design, energy-saving features, and safety measures make it a top-notch investment for any household.

The thermomate 3.5kW 120V Hard Wired Point of Use On Demand Hot Water Heater is an efficient and space-saving solution for supplying hot water on demand. With its instant heating capabilities, this water heater is always ready to provide hot or warm water at the preset temperature throughout your home, without consuming any standby energy or requiring a wait for the tank to fill up. It must be hard-wired and does not come with a plug.

This compact water heater is designed for single sink use and can easily fit in small spaces like kitchen closets, bathroom sinks, hair salons, bar counters, and hotel receptions. Measuring only 7.8W×6.3H×3.9D inches, it can be wall-mounted to save even more space. The temperature ranges from 85°F- 131°F, making it perfect for most household needs.

The thermomate water heater is also self-modulating, meaning it automatically adjusts the power based on the change of inlet water flow and temperature, saving up to 50% energy consumption and preventing over-heating. This feature ensures that the water heater is always working at optimal efficiency while providing hot water on demand.

Safety is a top priority for thermomate, and this water heater is ETL certified and equipped with multiple protection features from leakage, dry fire, over-heating, and over-pressure. The IP25 waterproof rating ensures that the water heater is protected from water damage. The stainless steel heating element and the lack of storage water prevent sediment and scale build-up, ensuring that the water is always clean and healthy.

The touch control panel and digital temperature display make it easy to set the desired temperature, and the lightweight design makes it easy to install vertically facing up or down. The unit can be activated by opening the tap with an activation flow rate of 0.4GPM, making it easy to use.

It is important to note that this unit is rated at 3.5kW@120V and requires a 40A Circuit Breaker, 9AWG wire size, and 1/2"NPT water connections. It is essential to verify that the unit is the correct size for your needs before purchasing.

In summary, the thermomate 3.5kW 120V Hard Wired Point of Use On Demand Hot Water Heater is a reliable and energy-efficient solution for providing hot water on demand. Its compact design and self-modulating features make it a space-saving and safe option for households, businesses, and hotel receptions.

The ECOTOUCH Electric Tankless Water Heater is a powerful and energy-efficient solution for providing instant hot water in homes and businesses. With a smart heating system that delivers 18kW of power, this on-demand water heater can supply endless hot water at 120℉ or higher in seconds, without any waiting time or temperature fluctuations during usage.

This tankless hot water heater also features self-modulation technology, which adjusts the power input based on the current flow rate and temperature setting. This results in ideal water temperature without the risk of scalding, thus ensuring a comfortable and safe experience. Additionally, the optimal energy efficiency of 98% saves considerable electric charge for consumers.

The ECOTOUCH Electric Tankless Water Heater is designed for convenient use, with a digital display and touch control panel that makes temperature setting an easy job. The screen also displays useful information about the working status of the water heater, providing users with a full understanding of its performance.

This tankless water heater is also safe and durable, with multiple protections against leakage, over-heating, and auto-stop. It has undergone strict testing to ensure 100% safety and is listed by ETL and qualifies for UL. The water and electricity lines are designed to run separately to avoid any leakage risks and scale build-up, ensuring outstanding performance for years to come.

The ECOTOUCH Electric Tankless Water Heater is compact and can be installed anywhere point-of-use to avoid waste, making it ideal for showers, sinks, dishwashers, washing machines, bars, schools, and hair salons. It requires 240V, 2X40AMP Double Pole Breaker, and 2X8AWG/2 wires with Grounding to operate. The dimensions of this water heater are 12.22" (W) x 17.25" (H) x 4.02" (D), with plumbing connections of 3/4" NPT.

Overall, the ECOTOUCH Electric Tankless Water Heater is a reliable and energy-efficient solution for providing instant hot water in homes and businesses. Its smart technology and convenient features make it a great addition to any property.

The Baby Brezza Instant Warmer is a game-changing product for parents who are tired of waiting for traditional bottle warmers to heat up their baby's milk. With the ability to instantly dispense warm water at the perfect baby bottle temperature, this innovative product is a great replacement for traditional bottle warmers.

The Instant Warmer is designed to dispense warm water on demand, maintaining a warm temperature throughout the day and night. Parents can customize the temperature to their liking, choosing from three settings: body temperature, warmer than body temperature, and room temperature. This feature provides a level of convenience that other products on the market simply cannot match.

One of the best features of the Instant Warmer is its ease of use. Parents can simply press the lever to dispense warm water, add formula, and mix it before feeding their baby. This process is much faster than waiting for a traditional bottle warmer to heat up, which can take up to five minutes.

The Instant Warmer is compatible with all bottle brands and types, making it a versatile addition to any family's baby gear. Its airtight tank holds up to 50 oz of water, which is enough for a day's worth of formula. Additionally, the product is BPA-free, ensuring that it is safe for babies to use.

The Instant Warmer is backed by a one-year warranty, although this is not valid if shipped outside of the US. This warranty provides peace of mind for parents who want to ensure that they are investing in a high-quality product that will provide lasting value.

Overall, the Baby Brezza Instant Warmer is a must-have for parents who want to save time and provide their babies with warm milk as quickly and easily as possible. Its innovative design, customizable temperature settings, and ease of use make it a top choice for anyone who wants to simplify the feeding process and make life a little easier for themselves and their baby.

The BLACK+DECKER Tankless Electric Water Heater is a powerful and efficient unit designed to provide hot water on demand. The 36kW heating system is capable of providing endless hot water with automatic water flow sensors, making it ideal for entire homes to receive instant and continuous hot water in seconds. The self-modulating unit allows users to set and maintain the desired temperature in increments of 1℉, with an easy-to-use and read digital temperature display.

This water heater is designed for multi-use applications, making it suitable for commercial or residential use. It is perfect for use in warm to hot climates, and is ideal for showers, sinks, bathrooms, washing machines, and kitchens. With a wall-mounting design, the compact unit can be installed virtually anywhere, including in a cabinet, closet, garage, or basement, saving valuable space. Additionally, as the unit does not require a bulky hot water tank, users can save up to 50% on heating costs.

The BLACK+DECKER Tankless Electric Water Heater is reliable and durable, with an extensive warranty of 7 years of leakage-free coverage, 5 years on the heat exchanger, and 2 years on parts. The durable stainless steel, non-corrosive internal canisters and piping provide increased heating efficiency and life expectancy, making it a long-lasting investment. Furthermore, the unit is lead-free, ensuring safe and clean water for users.

Installation of the unit is easy and straightforward, with no gas lines or venting required. The unit requires 4 x 40 amp single-phase double-pole breakers, 4 x 8/2 AWG wire size, and 240V. It also features standard 3/4 in. NPT (straight thread) fittings, making it compatible with most plumbing systems.

Overall, the BLACK+DECKER Tankless Electric Water Heater is an excellent investment for anyone looking for a reliable, efficient, and space-saving water heating solution. With its powerful heating system, multi-use applications, and easy installation, it is an ideal choice for both commercial and residential use.

The Camplux Pro ME25B Mini Tank Electric Water Heater is an on-demand water heating system that provides hot water instantly. This compact and versatile unit has a 2.5-gallon capacity and can be installed independently or in-line with a large hot water source. It comes with a 43.3-inch cord that plugs into a 120-volt outlet, making it easy to use and install.

This water heater is multipurpose and can be shelf, wall, or floor mounted. It is designed to be installed directly at the sink, allowing you to have hot water right where you need it. The product dimensions are 12.9 inches in width, 12.9 inches in height, and 11.5 inches in depth.

The Camplux Pro ME25B Mini Tank Electric Water Heater features thermostat control that allows you to adjust the water temperature according to your preference. It also has a high limit device that provides protection against overheating. This feature ensures that the system is safe to use and prevents any potential accidents.

The electric water heater is easy to maintain and has a glass-lined tank for long service life. The glass lining prevents corrosion and extends the life of the tank, ensuring that the system provides consistent and reliable hot water supply for a long time.

The 2.5-gallon Pro mini-tank is designed to fit under your sink, providing convenient hot water right where you need it. This feature is especially useful for small apartments, RVs, boats, and tiny homes where space is limited. The Camplux Pro ME25B Mini Tank Electric Water Heater is CSA listed and comes with a temperature and pressure relief valve for added safety.

In summary, the Camplux Pro ME25B Mini Tank Electric Water Heater is a reliable and versatile on-demand water heating system that provides hot water instantly. It is easy to use and install, and its compact size makes it ideal for small spaces. The system is safe and easy to maintain, and its glass-lined tank ensures long service life. If you are looking for a convenient and reliable hot water supply, the Camplux Pro ME25B Mini Tank Electric Water Heater is an excellent choice.

The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) is an ideal solution for those who need hot water on demand but don't want to wait for it to flow from a distant source. This 2.5 gallon point-of-use mini-tank can be conveniently installed under your sink, providing hot water right where you need it. With a thermal efficiency of 98%, this electric water heater is designed to deliver hot water quickly and efficiently.

The Tronic 3000 T is built to last, with premium glass-lined material that ensures long service life. It is easy to maintain and comes with a 36-37" cord that can be plugged into a 120 volt outlet for independent installation or in-line with a large hot water source. With a fast recovery rate, this water heater eliminates long waits for hot water at your sink, providing on-demand hot water whenever you need it. It can supply up to two sinks at a time, making it perfect for small households or offices.

One of the key benefits of the Tronic 3000 T is that it can be easily mounted on a shelf, wall, or floor. The bracket is included, making installation a breeze. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. This eliminates the need for a large, centralized hot water system and saves energy by only heating the water that you need.

The dimensions of the Tronic 3000 T are 13.75 W x 13.75 H x 10.75 D inches, making it compact and easy to fit into tight spaces. It requires 12 amps and 120 volts to operate, making it an energy efficient option for those who want to save on their electricity bills.

In summary, the Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) is a convenient, reliable, and efficient solution for those who need hot water on demand. It is easy to install, easy to maintain, and built to last. With its fast recovery rate and compact design, it is perfect for small households, offices, or anywhere that hot water is needed in a hurry.

The Rheem 8kW 240V Tankless Electric Water Heater is a reliable and efficient solution for providing hot water on demand. Equipped with an ON/OFF Dial Control and an adjustable digital temperature display, users can easily adjust the temperature to their desired level. The self-modulating power control feature ensures that the unit only uses the necessary amount of power to heat the water, resulting in energy savings and lower utility bills.

This tankless electric water heater has a flow rate of up to 1.95 gallons per minute, making it suitable for small to medium-sized households. The side 1/2" NPT water connections allow for easy installation and maintenance. With its on-demand feature, users can enjoy continuous hot water without the need for a storage tank.

The Rheem 8kW 240V Tankless Electric Water Heater is designed for safety and convenience. It has a built-in safety feature that prevents overheating and a troubleshoot system that alerts users of any issues that may arise. The compact design of the unit allows for easy installation in tight spaces, making it a great choice for apartments, condos, and small homes.

Overall, the Rheem 8kW 240V Tankless Electric Water Heater is a reliable and efficient choice for those looking for a tankless electric water heater. With its adjustable temperature control, self-modulating power control, and continuous hot water supply, it provides a convenient and cost-effective hot water solution for households of various sizes.