18kW Electric Tankless Water Heater, 240V , with LED Display, Energy-Saving Whole House Water Heating System

Never run out of hot water again. This 18 kW tankless electric unit delivers up to 4.4 GPM—enough to run two showers and a sink simultaneously—without the bulk, standby loss, or temperature swings of a traditional 50-gallon tank. Advanced self-modulating technology adjusts power draw in real time so you only pay for the energy you actually use, cutting water-heating bills by up to 60 %.

• 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