Westinghouse 18kW Electric Tankless Whole House Water Heater, 4.2 GPM Instant Hot Water on Demand, 240V, WIFI & Self Modulating High Efficiency, Copper Heating, LED Display, ETL Certified

Electric Tankless Water Heater for Whole House: This 18kW 240V electric tankless water heater delivers up to 4.2 GPM, supplying 2-3 fixtures simultaneously with no temperature drop — ideal for busy households that need reliable hot water on demand, every single time

Smart WiFi Control & Alexa/Google Voice: Remote wifi & app control lets you adjust temperature from anywhere, or go hands-free with Alexa and Google Assistant voice commands. Digital LED display shows real-time status at a glance

Copper Heating: 50% Faster Hot Water: Copper heating elements deliver better thermal conductivity, heating water up to 50% faster than standard stainless steel coils — enjoy endless hot water the moment you turn on the tap, with longer-lasting corrosion-resistant performance

±1°F Precision & Energy Saving up to 50%: Self-modulating technology matches power to your actual water demand — keeping temperature steady within ±1°F even when multiple fixtures are running. Only the energy needed, no wasted power, up to 50% lower water heating costs year after year

ETL Certified Safety & Scale Inhibitor: The electric tankless water heater features multiple protections against overheating, dry-fire, and leakage give you peace of mind. Free scale inhibitor included to reduce buildup and extend the life of your water heater

Specs at a Glance: 18kW / 240V / 75A / 0.5-4.2 GPM / 3/4" NPT connections; Temperature Range 86-140?(30-60?); Dimensions: 18.7"×3.94"×14.17" ; Amperage Draw: 75 A — professional installation recommended; Special Features: ?energy efficient