Coates 240V 5kW/11kW 24amp Compact Single Phase Electric Spa Heaters | 12406ST | 12411ST

The 240V 5kW/11kW 24amp electric heater features a built-in flow switch to prevent operation when there is no water flow. It supports flow rates between 15 and 80 GPM. The stainless steel tank is engineered for efficient heat transfer across the incoloy heating elements.

Standard Features

• Incoloy heating elements
• Digital thermostat
• Manual reset high temperature limit
• Flow switch
• Heavy-duty contactors
• Element “on” light
• 1-1/2 x 2″ union connections for PVC pipe

Technical Data

• Dimensions: 17.5″ L x 4″ W x 14″ H
• UL Listed: Rated for indoor and outdoor installation

Model Specifications

• Model Number: 12406ST
• Kilowatts: 5.5
• Voltage: 240
• Phase: Single
• Amps: 23
• BTUs/hr: 18,772
• Shipping Weight: 19 lbs

• Model Number: 12411ST
• Kilowatts: 11
• Voltage: 240
• Phase: Single
• Amps: 46
• BTUs/hr: 37,543
• Shipping Weight: 19 lbs

Additional Details

This compact electric spa heater is available in 5.5kW and 11kW versions. Both models include a flow switch for safe and efficient operation and use a stainless steel tank to guide water evenly across the heating elements for optimal performance.

Guides and Documentation

• 12406ST User Guide (PDF)
• Product Page