3.5 kW
EHS-4
For a single hand sink or other properly sized point-of-use application.
View EHS-4Drakken application family
Point-of-Use Solutions
Electric tankless water heaters for properly sized single fixtures and specialized point-of-use applications. ES-9, ES-12, and ES-14 extend the range for higher temperature rise, colder inlet water, tank-type water-heater boosting, and properly engineered solar water-heating support.
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Models in this family
Compare the right starting points.
Handwashing stations, lavatories, break-room and utility sinks, high-temperature-rise applications, tank-type water-heater boosters, and solar water-heating support.
4.4 kW
EHS-5
A higher-output 120V point-of-use option for properly sized single-fixture demand.
View EHS-57 kW
EHS-7
For higher point-of-use demand where verified electrical capacity and sizing support the application.
View EHS-79 kW
ES-9
For properly sized residential demand; capacity depends on inlet temperature, flow, and simultaneous fixtures. Wi-Fi enabled for remote temperature monitoring and control.
View ES-912 kW
ES-12
For properly sized residential applications with verified flow and electrical capacity. Wi-Fi enabled for remote temperature monitoring and control.
View ES-1214 kW
ES-14
The highest-output model in the ES-9/12/14 family for properly engineered residential demand. Wi-Fi enabled for remote temperature monitoring and control.
View ES-14Application ideas
Built around real hot-water demand.
Each image below represents the application named—select the product only after confirming flow, temperature rise, energy source and installation requirements.
Single-Fixture Hot Water
High Temperature Rise
Tank-Heater Boosting
Solar Water Heating
The Drakken difference
Separate the water from the heating elements.
Drakken’s patent-pending water-isolated heat-transfer design separates the water path from the heating elements. Instead of repeatedly flash-heating water against exposed screw-plug elements, the system transfers heat through the engineered exchanger for steadier, controlled on-demand performance.
By isolating the heating elements from direct water contact, the design is intended to avoid dry-fire exposure, reduce mineral contact at the elements, eliminate routine screw-plug heating-element replacement, and deliver more consistent hot water when the system is correctly sized and installed.
Water-isolated heatingReduced calcium exposureNo screw-plug element changesControlled, consistent output
Confidence backed by replacement coverage. Qualifying registered products include a 5-year replacement warranty. After year five, coverage may be eligible for paid reactivation, subject to Drakken approval and the current written warranty terms. Patent pending.
Electric temperature-rise planning
See how flow changes achievable temperature rise.
The curves below include electric models only and use the standard theoretical heat-balance calculation from rated electrical input. Actual performance changes with efficiency, voltage, inlet temperature, water pressure, and installation. Use the values as a planning reference until manufacturer-tested curves are approved.
| Model | 0.5 GPM | 1 GPM | 1.4 GPM | 2 GPM | 2.5 GPM | 3 GPM | 4 GPM |
|---|---|---|---|---|---|---|---|
| EHS-4 | 48°F ΔT | 24°F ΔT | 17°F ΔT | 12°F ΔT | 10°F ΔT | 8°F ΔT | 6°F ΔT |
| EHS-5 | 60°F ΔT | 30°F ΔT | 21°F ΔT | 15°F ΔT | 12°F ΔT | 10°F ΔT | 8°F ΔT |
| EHS-7 | 96°F ΔT | 48°F ΔT | 34°F ΔT | 24°F ΔT | 19°F ΔT | 16°F ΔT | 12°F ΔT |
| ES-9 | 123°F ΔT | 61°F ΔT | 44°F ΔT | 31°F ΔT | 25°F ΔT | 20°F ΔT | 15°F ΔT |
| ES-12 | 164°F ΔT | 82°F ΔT | 58°F ΔT | 41°F ΔT | 33°F ΔT | 27°F ΔT | 20°F ΔT |
| ES-14 | 191°F ΔT | 96°F ΔT | 68°F ΔT | 48°F ΔT | 38°F ΔT | 32°F ΔT | 24°F ΔT |
Planning reference only—not certified performance data or final sizing approval. A qualified professional must verify the current submittal, manual, rating label, electrical capacity, and site conditions.