18kW Electric Tankless Water Heater, APUS 240V Instant On-Demand Hot Water Heater, Up to 4.4 GPM with LED Display, Energy-Saving Whole House Water Heating System, Space-Saving Design

Additional Details from the Manufacturer

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More features

• Enjoy continuous hot water whenever you need it. The 18kW tankless water heater electric delivers up to 4.4 GPM for 2–3 uses at once, such as showers, sinks, or laundry. No preheating, no waiting, and no temperature drops
• Adjust your preferred temperature between 86°F–140°F using the LED digital display with 1°F accuracy. The electric water heater built-in memory keeps your settings even after power outages. Self-modulating technology optimizes power usage based on flow rate, ensuring stable temperature and lower energy waste
• Achieving 99.8% thermal efficiency, this electric hot water heater on-demand water heater heats only when water flows—cutting up to 60% on energy bills. Zero standby heat loss and an anti-scale interior extend lifespan and maintain strong performance for eco-conscious households
• This tankless hot water heater ultra-slim wall-mounted heater (17.72" × 11.42" × 3.54") saves up to 90% more space compared to traditional tanks. With 3/4" NPT connections and 240 V compatibility（requires 3×40 A breakers,6×10 AWG cable), installation is easy and flexible—ideal for whole-house or point-of-use setups in bathrooms, kitchens, or laundry rooms
• Engineered with 6-layer protection, including anti-leakage, overheat, and surge safeguards. The separated water-electricity design prevents corrosion and ensures long-term reliability