The 10 Best Instant Electric Hot Water Heater

Get hot water where it’s needed, when it’s needed with the Bosch ES4 Tronic 3000 T Electric water heater. This 2.5-gallon capacity point-of-use mini-tank fits right under your sink and provides a practical and effective solution to your hot water needs. This smaller model can be plugged right into a 120-volt outlet with the 36-37″ cord, or can be installed in-line with a larger hot water source to provide “on-demand” use. The glass-lined tank offers great insulation and added durability, while the heater’s fast recovery rate eliminates long waits for hot water. An external dial allows you to easily control the temperature range, and the temperature-and-pressure relief valve enhances your safety. The ES4 Tronic 3000 T from Bosch has a sleek and attractive exterior design that blends in seamlessly with existing décor when installed in a visible location, making this heater a great option in any room.

FEATURES

Instant hot water comes with powerful 5.5kW heating element, expect hot water for 3 seconds, perfect choice for sinks to provide endless hot water any time.

ENERGY SAVING

This tankless water heater avoids standby heat loss of those bulky storage water heaters, minimize energy waste and achieve 65% energy saving with help of its smart self adjustment technology.

HEALTHY WATER QUALITY

Traditional bulky water tanks store water for long time, causing bacterial growth and rust issue, time to get clean water via a tankless hot water heater. The ECOTOUCH unit separates water and electricity line so as to avoid issue of calcium deposits.

MULTIPLY SAFETY PROTECTIONS

Over temperature protection

Dry heating protection

Leakage protection

Water and electricity line separated

EASY INSTALLATION

Real compact design, water heater cooridates with scenes decor, above sink or under sink water heater, horizontally, vertically or obliquely installation. Comes with easy installation brackets, pipe fitting of 1/2″ NPT and 12AWG power cord(fixed to the unit) so you don’t to have to hire a plumber even if you can do it.

SPECIFICATIONS

Power: 5.5kW

Voltage: 240V~60Hz

Min. water flow to activate the unit: 0.475GMP

Max tempt rise from 67°F to 120°F @ 1GPM

Max. Amperage: 23A

Recommended wire size: 12AWG

Required circuit breaker : 1x 2-Pole 30 AMP

KINDLY NOTE

1.The unit is mainly for sinks, not for shower purpose.

2.The tankless water heater should be installed professionally.

3.Please read instruction manual carefully prior to installation and use!

PACKAGE INCLUDES

1X ECOTOUCH 5.5kW instant water heater

1X Instruction manual and warranty card

1X Installation accessories

1X Remote control(for Black model)

Product Description

This Smart Technology electric tankless water heater is configured as a “whole home” model for climates where incoming water temperature is 67°F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67°F and an output setting of 105°F. Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. All tankless water heaters are sized based on flow rate and temperature rise, and there is a direct relationship between the two. So if used in a cold area requiring a high temperature rise, it will be more limited in the amount of fixtures (gallons per minute) it can heat at one time compared to a warmer climate. When sized properly this water heater will provide endless hot water and only consume the energy needed, giving the user complete control. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The ECO 11 requires a minimum 125 amp electrical panel for installation with (1) 60 amp double pole breaker connected to (1) set of #6 awg wire. Plumbing connections are 1/2″ compression fitting with the option of 1/2″ NPT adapter included. For additional assistance please feel free to contact our support center at 877-474-6473.

NOTE : 11Kw at 220 is equal to 13kw at 240.

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 67 Degree F and above. This model is well suited for heating up to 2-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 67 Degree F. Digital Temperature Control allows you to set your temperature in increments of 1 Degree. This model can also be used in colder climates as a Point of Use for a sink or other low flow application. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

Specification:
Material: Stainless Steel Shell
Color: Black, Golden, Red(optional)
Power: 3000W
Current: 25-32A
Voltage: 110V
Rated Frequency: 60Hz
Rated Pressure: 0.4-0.6Mpa
Waterproof Grade: IPX4
Temperature: 30-55℃(Considering the use environment in severe cold areas may not reach the maximum temperature of 55℃)
Installation wire diameter: 1.5-2.5mm² copper wire
Water pipe interface: G 1/2″ interface
Size: Approx. 20 x 10.5cm / 7.87 x 4.13inch

Packing list:
1 x Water Heater
2 x Fixing Screws
2 x Screws Protector
1 x Manual

Question:
Why the water is not hot?

1.The working current of our water heater is 25A-32A, and it require at least 1.5 square millimeters of wire. Please make sure that your circuit breaker can handle the 30amp, or it will not heat water.
2.The temperature is controlled by the size of the water flow. The Water Heater will be automatically energized when the water flow is more than 0.6 liters, and automatically turn off when the water flow is lower than 0.4 liters.
3.The heating temperature is between 30 and 55 degrees. If the water flow is large, the temperature will be low, and if the water flow is small, the temperature will be high.

Product Description

Configured for cold climates or high flow rates. Well suited where incoming water temperature can drop below 45 F. For use in more demanding water usage applications. Self modulating flow sensor technology regulates the amount of energy required to heat the water needed. Digital temperature display showing the outlet water temperature setting. Uses (3) 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Copper heat exchanger. Automatic resettable thermostat. (3) 40 DP breakers required. 112A draw. Required wire: 3 sets 8 AWG. Pipe fitting: 3/4” NPT. Energy efficiency: 99.8%. UL and CSA certified.Weight: 11 lb. Lifetime warranty.

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature can reach as low as 37 degrees. The ECO 27 is capable of heating nearly 3 gallons per minute at this temperature. The ECO 27 is the largest electric tankless water heater available with Patented Self Modulating Technology. This model is well-suited for homes in the northern U.S., Canada, and in the southern U.S. for large Roman-style or Jacuzzi tubs that generally have more demanding water usage needs. Digital temperature control allows you to set your temperature in increments of 1 degree. Prior to purchase and installation please verify that this model is the right size for your hot water needs and electrical requirements.

Professional classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications

Product Description

This electric tankless water heater is a true Point of Use Model because it is specifically designed for under the sink, single applications with a maximum flow rate of 0.5-Gallon per minute (gpm) and includes a 0.5 gpm sink aerator. This heater is flow controlled, meaning the temperature will adjust according to flow rate. It is the smallest sized Ecosmart electric tankless model and should not be used to run anything more than one sink at a time or used in areas where inlet water temperature is lower than 57°F. At this inlet temperature the ECO POU 3.5 can heat 0.5 gallons per minute to 105°F. Its compact size allows for under the sink installations. The Point of Use models are ideal for: Wet Bars, Strip Malls, Doctor’s Office, Boats, Recreational Vehicles (RVs), Bathroom Sinks. When sized properly this water heater will provide endless hot water. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The Eco POU 3.5 requires a minimum 100 amp electrical panel for installation with (1) 30 amp single pole breaker connected to #10 awg wire. Plumbing connections are 1/2″ NPT. For additional assistance please feel free to contact our support center at 877-474-6473. TROUBLE SHOOTING STEP: When the water is not hot enough, please slow down the flow of water to increase temperature!

From the Manufacturer

This electric tankless water heater is a true Point of Use Model because it is specifically designed for under the sink, single applications with a maximum flow rate of 0.5-Gallon per minute (gpm) and includes a 0.5 gpm sink aerator. Its compact size allows for under the sink installations. The Point of Use models are ideal for: Wet Bars, Strip Malls, Doctor’s Office, Boats, Recreational Vehicles (RVs), Bathroom Sinks. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

Professional classic® tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications

Conclusion

By our suggestions above, we hope that you can found instant electric hot water heater for you.Please don’t forget to share your experience by comment in this post. Thank you!