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Eemax
Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater

Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater

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$725.00at waterheaterChecked Nov 9

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Price facts

  • Last seen at $725.00 at waterheater on Nov 9.

Our take on the Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater

The Eemax HomeAdvantage II is a 27 kW, 240-volt electric tankless water heater that heats water on demand instead of storing it in a tank. It uses self-modulating elements to draw only the power needed for the flow and temperature set, with digital control from 80 to 140°F. At 27 kW it needs three 40-amp double-pole breakers and heavy gauge wiring, so it suits whole-home use in warm climates or point-of-use duty in colder ones. Against gas tankless units it avoids venting and gas lines but draws far more electrical capacity, and its copper elements and field-replaceable parts make servicing simpler than sealed competitors.

Best forWhole-home hot water in warm climatesReplacing a tank in a space-tight utility closetHouseholds with spare electrical panel capacityPoint-of-use hot water for a large home or guest suite
Pros
  • Heats water on demand with no standby tank loss
  • Self-modulating elements match power draw to demand
  • Digital temperature setting from 80 to 140°F
  • Copper heating elements with brass, threaded terminations
  • Major components are field replaceable
  • Compact wall-mounted footprint
Cons
  • 27 kW needs three 40-amp double-pole breakers and heavy wiring
  • Output falls short for cold-inlet whole-home use in northern winters
  • Installation usually requires an electrician and panel upgrade
  • No tank means no hot water during a power outage

Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater prices at every store

  • waterheaterNew

    In stockReturn policy

    $725.00Checked Nov 9
    Visit waterheater

What reviewers say

Owners of the HomeAdvantage line generally report steady, endless hot water once the unit is correctly sized and wired, and praise the compact wall mount and simple temperature control. Electricians and owners alike stress that installation cost and electrical capacity matter more than the unit itself, and some find output limited in cold months.

What people mention
  • Electrical demandCriticisedOwners note the 27 kW model needs multiple dedicated breakers and heavy wiring, which drives up installation work.
  • Hot water supplyPraisedReviewers report consistent, endless hot water once the unit is sized to the household.
  • Cold weather outputMixedSome owners find the unit struggles to keep up when incoming water is very cold.
  • Size and mountingPraisedThe compact wall-mounted body is valued where floor space is tight.
  • DurabilityMixedField-replaceable parts are appreciated, but some owners report needing repairs over time.

About the Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater

The Eemax HomeAdvantage II is a 27 kW, 240-volt electric tankless water heater. It heats water on demand, so hot water arrives without a delay. A flow switch turns the heater on only when water is running, so there is no standby heat loss.

It uses self-modulating technology, which draws only the energy needed to heat the water being used. It also reduces calcification and sedimentation.

A digital control sets the temperature, and the display adjusts from 80 to 140 degrees. The heating elements are copper with brass termination for durability. They are threaded for easy replacement, and all major components are field replaceable.

Power
27 kW
Voltage
240 V
Type
Electric tankless water heater
Efficiency
99.8% energy efficient
Temperature range
80 to 140 degrees, adjustable on the digital display
Heating elements
Copper, with brass termination, threaded for replacement
Control
Digital temperature control
Activation
Flow switch runs the heater only when water is flowing
Serviceability
All major components are field replaceable

Questions and answers

How much electrical service does the 27 kW model need?
It runs on 240 volts and draws about 112 amps at full power, so it needs three 40-amp double-pole breakers and appropriately sized wiring. Most homes need a panel check or upgrade before installing it.
Can it handle a whole house?
It can in warm climates where incoming water is mild. In cold regions the temperature rise needed is larger, so it may only serve a few fixtures at once or need to be paired with a preheat source.
What temperature range can I set?
The digital control adjusts the setpoint from 80 to 140°F. The unit modulates its elements to hold that temperature as flow changes.
Does it work during a power outage?
No. It is electric and has no tank, so it provides no hot water when power is out, unlike a tank heater with stored hot water.
How is it serviced?
Major components are field replaceable, and the copper elements have threaded brass terminations so they can be swapped out. That makes repairs less disruptive than sealed units.
Does it reduce scale buildup?
Eemax states the design reduces calcification and sedimentation compared with tank storage, since water is not held and reheated in a tank.
Where is the Eemax HomeAdvantage II 27 kW 240-Volt Electric Tankless Water Heater cheapest?
At waterheater, for $725.00, as of our latest check.

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