Eemax HA024240 HomeAdvantage II Tankless Water Heater 24kW 240V
Brand: Eemax | SKU: HA024240
Product Overview
The Eemax HA024240 HomeAdvantage II is a compact, whole-home electric tankless water heater designed to deliver an endless supply of on-demand hot water for residential applications. Operating at 24kW and 240V, this highly efficient heating solution utilizes advanced self-modulating technology to supply single point-of-use or multiple fixtures simultaneously. Homeowners, DIYers, and professional plumbers select this model to maximize space efficiency and enjoy stable, precise temperature delivery without standby heat loss.
Key Features:
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Self-Modulating Technology: Smart digital controls continuously recalculate flow rates and inlet temperatures 60 times per second to optimize power usage.
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Thermostatic Temperature Control: Easily adjusts output in precise 1-degree increments ranging from 80°F to 140°F, maintaining steady state stability within +/-1°F.
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Durable Construction: Built with robust copper clad immersion heating elements, brass top terminations, and a copper heat exchanger to enhance durability and prevent corrosion.
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Compact Space-Saving Design: Up to 93% smaller than standard electric water tanks, allowing hassle-free installation inside closets, basements, or tight spaces.
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Low Flow Activation: Triggers reliable heating at an industry-low 0.3 GPM activation point, perfect for water-saver fixtures and efficient operation.
Technical Specifications:
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Model: HA024240
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Product Type: Electric Tankless Water Heater
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Finish/Color: Stainless Steel / Powder-Coated Shell
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Material: Copper Heat Exchanger, Galvanized Steel Backplate, Copper Elements
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Size/Dimensions: 17"H x 17"W x 3.625"D
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Connection Size: 3/4"NPT Water Connections
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Voltage: 240V (Can be used on 208V single phase with 25% reduced temperature output)
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Wattage: 24kW (24,000 Watts)
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Flow Rate: 0.3 GPM Minimum Activation; 7.0 GPM Maximum Flow Rate
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Pressure Rating: 25 PSI Minimum Operating Pressure; 150 PSI Maximum Operating System Pressure
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Location Rating: Indoor use only (Can use a suitable enclosure outdoors to protect from elements; do not freeze)
Installation & Versatility:
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Installation Type: Indoor wall mount, designed to be secured in an upright position with water connections at the bottom.
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Field Adjustment: Features an intuitive external display with a control knob for adjusting setpoints in Fahrenheit or Celsius scales.
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Compatibility: Employs standard 3/4"NPT bottom fittings for clean flex hose plumbing without requiring any complex pipe soldering during connection.
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Recommended Use: Whole-house residential hot water, multi-fixture demands, water-saver shower heads, kitchen sinks, and under-sink applications.
Frequently Asked Questions
Does this unit require a temperature and pressure (T&P) relief valve?
Because this product functions as an on-demand tankless system without a storage tank, a T&P relief valve is not required for most standard installations. Always check your local plumbing codes to verify regional compliance.
Can the HA024240 be mounted horizontally or upside down?
For a proper setup and straightforward maintenance access, it is recommended to mount this unit strictly in an upright position with the inlet and outlet water connections pointing down at the bottom.
What are the main electrical system requirements for this water heater?
The unit draws a total of 100 Amps at 240V. It requires a household electrical service panel capable of supporting at least 150 Amps, utilizing 3 dedicated 40 Amp double-pole breakers paired with 8 AWG copper wire.
Can I solder my water supply pipes directly onto the unit's brass fittings?
No, you must never solder pipes while they are physically connected to the water heater. Doing so risks permanently damaging the internal electronic flow sensor and will void your manufacturer warranty.
Why We Like It:
The Eemax HA024240 is an excellent whole-home solution because it pairs a heavy-duty copper heat exchanger with an advanced microprocessor that updates performance calculations 60 times a second. It completely eliminates standby heat loss, rendering it exceptionally energy efficient. Before finalizing your order, verify that your household electrical subpanel has the capacity for three independent double-pole 40 Amp breakers. Remember to completely purge all remaining air pockets out of the plumbing lines for a few minutes before activating your breakers to safeguard the threaded copper immersion elements from dry-firing.
