Eemax HomeAdvantage II 18 kW Whole-House Electric Tankless

Model HA018240
4.2/5 from 180 ratings
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Price as of Apr 2026
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Kw
18
Voltage
240V
Amperage
80A
Fuel Type
Electric
Tank Type
Tankless
Energy Factor
0.99

Eemax HomeAdvantage II 18 kW Whole-House Electric Tankless Review

The Eemax HomeAdvantage II 18 kW is the smaller whole-house electric tankless in Eemax's residential line. 18 kW capacity with commercial-grade brass construction.

Specs: 18 kW, two 40-amp double-pole breakers, 75A continuous draw at 240V. Brass construction throughout. 3-year warranty on heat exchanger.

Capacity: 2.0 GPM at a 60°F rise or 3.0 GPM at a 40°F rise. Same capacity class as Rheem RTEX-18 and EcoSmart ECO 18. Eemax's premium positioning: commercial-grade brass construction throughout for higher cycle counts.

About $1,000 unit, $2,000 installed. Premium pricing reflects commercial-grade build quality. Right buyer: light commercial single-fixture or whole-house application where commercial-grade durability matters over the longer-warranty EcoSmart equivalent.

Full Specifications

Brand
Eemax
Model Number
HA018240
Kw
18
Voltage
240V
Amperage
80A
Fuel Type
Electric
Tank Type
Tankless
Energy Factor
0.99
Flow Rate Gpm
2.6
Warranty Years
5
Capacity Gallons
0

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