The Infrared Tankless Water Heater – Model Sio 18 is the high-range model for Residential and Commercial use, ideal for large family homes or medium to large businesses, with a capacity of 0.5 to 5.0 gallons per minute. This powerful, efficient hot water heater applies Quartz Infrared heating elements and a tankless design for maximum performance and efficiency.

• Multiple Redundant High Power Quartz Heating Elements
• Thermostatic Intelligent Fuzzy Logic PID Temperature Controller
• Fully Modulating Power Control
• Solid State Relay (SSR)
• LED Temperature Outlet/Set Display ( °F/ °C setting)
• 3 Digit LED Flow Indicator (GPM)

• Compact Design for Space Saving
• Superior Energy Efficient (98%)
• Environmental Friendly and Recyclable
• Continuous Hot Water On-Demand
• Self Cleaning Design for Maintenance Free Operation

• Part Number: SIO-18
• Item Weight: 27lbs
• Dimensions: 14 x 20 x 6 inches 
• Voltage: 240V
• Amperage: 150a
• Required Breaker Size: 2x 40a Double Pole Breaker
• Water Connection: 3/4" NPT
• Suggested Wire Size: 10 Gauge
• Maximum Flow Rate: 5.0 GPM
• Flow Rate @ 40 Temp Rise (GPM): 3.6
• Batteries Required: No

• User's Manual