Westinghouse Electric Tankless Water Heater 18kW 240V WiFi 4.2 GPM Copper Element Gray

Upgrade your home with the Westinghouse electric tankless water heater, delivering up to 4.2 GPM to support 2–3 fixtures simultaneously with instant, endless hot water. This 18kW tankless water heater with installation includes a free external scale inhibitor that filters hardness minerals before they enter the unit, protecting the heating chamber and flow sensor from buildup in hard-water areas. Smart WiFi control and voice integration with Alexa and Google Assistant let you adjust temperatures remotely, while the advanced copper heating elements heat water up to 50% faster than traditional stainless steel coils. ETL certified for safety and engineered for efficiency, this tankless water heater installation delivers year-round savings and reliable performance.

Highlights

• Whole House Hot Water – 4.2 GPM flow rate supports 2–3 fixtures at once, providing steady hot water for showers, sinks, and appliances throughout your home
• Free Scale Inhibitor Included – External scale inhibitor filters hardness minerals at the water inlet, keeping the heating chamber clean and maintaining full flow rate and efficiency in hard-water regions
• Copper Heating Elements – Superior thermal conductivity heats water up to 50% faster than standard stainless steel, delivering instant hot water with excellent corrosion resistance
• Smart WiFi & Voice Control – Remote app control and Alexa/Google Assistant voice commands let you adjust temperature from anywhere, with digital LED display for real-time status monitoring
• ±1°F Precision Temperature – Self-modulating technology matches power output to actual demand, maintaining steady temperature within ±1°F even when multiple taps are running
• Energy Savings up to 50% – On-demand heating eliminates standby losses, using only the energy needed and cutting water heating costs by up to 50% annually
• ETL Safety Certified – Multiple protections against overheating, dry-fire, and leakage ensure safe, worry-free operation
• Compact Space-Saving Design – Wall-mounted electric tankless hot water heater install frees up valuable floor space while delivering powerful performance

What’s Included

• Westinghouse 18kW Electric Tankless Water Heater
• External Scale Inhibitor (bonus accessory for hard water protection)

Technical Details

• Brand: Westinghouse
• Color: Gray 18
• Power: 18kW
• Voltage: 240V
• Flow Rate: 4.2 GPM
• Heating Element: Copper
• Simultaneous Fixtures: 2–3
• Temperature Stability: ±1°F
• Display: Digital LED
• Connectivity: WiFi, Alexa, Google Assistant
• Safety Certification: ETL
• Protection Features: Overheating, Dry-Fire, Leakage Protection

All prices incl. VAT, plus shipping.