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Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW

Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW

4.9(78 ratings)

Best price now

$229.99at ThermoMateChecked Nov 9

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Price facts

  • Last seen at $229.99 at ThermoMate on Nov 9.

Our take on the Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW

This is a point-of-use tankless electric water heater rated 11 kW at 240V. It heats water on demand and holds the set temperature within about 1°F, so a sink or shower gets steady hot water without a tank. The element sits outside the water tube, which cuts scale and corrosion, and the alloy housing and ports are built for low maintenance. It suits a bathroom, small sink or office break room on a dedicated 240V circuit, not a whole house. Against gas tankless units it needs no venting, but it draws up to 46 amps and needs two double-pole 30A breakers, which is more electrical work than a small 3–7 kW point-of-use unit.

Best forA single bathroom or shower on a dedicated 240V circuitSmall sinks, office break rooms and point-of-use tapsLow-flow applications where a tank wastes spaceOwners who want no tank and no venting
Pros
  • Endless on-demand hot water with no tank to run out
  • Holds temperature within about 1°F of the setting
  • Element separated from the water tube reduces scale and corrosion
  • Compact wall-mount design frees floor space
  • ETL certified with overheat and dry-run shutoff
Cons
  • Needs two double-pole 30A breakers and up to 46 amps at full draw
  • 11 kW limits it to one fixture or low-flow use, not a whole house
  • Installation is a job for a licensed electrician
  • No tank means no hot water during a power outage

Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW prices at every store

  • ThermoMateNew

    In stockReturn policy

    $229.99Checked Nov 9
    Visit ThermoMate

What reviewers say

  • 4.9 / 578 ratings

Rated 4.9 out of 5 from 78 ratings. Buyers report steady hot water at the sink and shower and a compact unit that fits tight spaces, with the electrical requirements the main hurdle.

What people mention
  • Temperature stabilityPraisedOwners say the water stays close to the set temperature instead of swinging hot and cold.
  • SizePraisedBuyers like that it mounts on the wall and takes little room under or beside a sink.
  • Electrical demandMixedThe 46-amp draw and two 30A breakers are more than many buyers expect and add install cost.
  • BuildPraisedThe alloy housing and separated element are described as solid and low-maintenance.
  • CapacityCriticisedSome note it handles one fixture at a time, so it is not a whole-house solution.

About the Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW

This is a wall-mounted electric tankless water heater that heats water only when it is needed. It has no water tank, so it takes up little space and fits into tight spots. It is suited to point-of-use and low-flow applications such as a bathroom, a small sink or an office break room.

It continuously detects water temperature and flow rate, and holds the water within 1°F of the selected temperature. Self-modulating power control uses only the energy needed to heat the water.

The housing and water ports are alloy metal. The heating element is separated from the water tube, which reduces scale, corrosion and mineral buildup on the element. Safety features include overheating protection and automatic shutoff when no water is detected. The unit is ETL certified. A dial turns it on and off, and a digital display shows the adjustable temperature.

Model
ET110
Power
11 kW at 240V
Max current
46 amps
Breakers
2 double-pole 30 amp breakers required
Wiring
12 AWG wire
Water ports
1/2" NPT male
Max flow rate
Up to 2.68 GPM
Temperature control
On/off dial with adjustable digital temperature display; within 1°F of selected temperature
Efficiency
99%
Housing
Alloy metal housing and water ports
Safety
Overheating protection; auto stop heating when no water is detected; ETL certified
Mounting

Questions and answers

Can this replace a whole-house water heater?
No. At 11 kW it is built for one bathroom, sink or low-flow point of use. A whole house needs far more power and usually a larger unit.
What electrical setup does it need?
A 240V circuit with two double-pole 30A breakers and 12 AWG wire. At full output it draws up to 46 amps, so a licensed electrician should wire it.
What are the water connections?
It has 1/2-inch NPT male ports for the cold inlet and hot outlet.
Does it work with low water pressure or low flow?
Yes. It is designed for point-of-use and low-flow applications and stops heating when it detects no water.
How is the temperature set?
An ON/OFF dial with an adjustable digital display sets the target temperature, and the unit modulates power to hold it within about 1°F.
Does it need venting?
No. It is electric, so there is no flue or gas line, unlike a gas tankless heater.
Where is the Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW cheapest?
At ThermoMate, for $229.99, as of our latest check.
What do buyers say about the Tankless Electric On Demand Instant Hot Water Heater - 240V | 11kW?
Rated 4.9 out of 5 from 78 ratings.

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Wall-mounted
Typical flow rates
Water-saver shower head 1.5 GPM; standard shower head 2.0 GPM; hand sink 0.5 GPM; kitchen sink 1 to 2 GPM; bath tub 4 GPM; dishwasher 1 to 2 GPM; washing machine 1 to 1.5 GPM (based on 2010 Plumbing S
In the box
1 x ET110 water heater, 1 x mounting kit
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