9 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-9Drakken application family
Soluciones para toda la casa
Residential electric tankless water heating for carefully sized apartments, condominiums, townhouses, small homes, and larger residential applications. ES18-D and ES27-D provide additional capacity where verified temperature rise and simultaneous demand require it.
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Models in this family
Compare the right starting points.
Residential applications sized around incoming-water temperature, simultaneous fixtures, target outlet temperature, and available electrical service.
12 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-1418 kW
ES18-D
For apartments, larger residential loads, and service applications when properly sized. Wi-Fi enabled for remote temperature monitoring and control.
View ES18-D27 kW
ES27-D
For larger homes, multiple fixtures, and light-commercial applications when properly engineered. Wi-Fi enabled for remote temperature monitoring and control.
View ES27-DApplication 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.
Apartments & Condos
Townhouses & Studios
Compact Residences
Larger Residential Demand
La diferencia Drakken
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 |
|---|---|---|---|---|---|---|---|
| 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 |
| ES18-D | 246°F ΔT | 123°F ΔT | 88°F ΔT | 61°F ΔT | 49°F ΔT | 41°F ΔT | 31°F ΔT |
| ES27-D | 368°F ΔT | 184°F ΔT | 132°F ΔT | 92°F ΔT | 74°F ΔT | 61°F ΔT | 46°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.