Coates 12411ST ST Series Electric Spa Heater 11kW, 240V, 46A, 38K BTU
Coates 12411ST Electric Heater; 11 kW; 1-Phase; 240 V; 46 A
This Coates electric spa heater is built for reliability and efficiency. It’s designed for spas and hot tubs with a circulation pump, operating safely between 15–70 GPM. The built-in flow switch prevents dry firing when water isn’t flowing.
Its stainless steel tank and Incoloy heating elements maximize heat transfer for fast, even heating. The adjustable thermostat lets you set temperatures from 65°F to 104°F, and the unit can be installed indoors or outdoors. Includes 1.5" and 2" union connections for easy setup.
- Incoloy heating elements
- Digital thermostat
- Manual reset high temp limit
- Flow switch
- Heavy-duty contactors
- Element “on” light
- 1-1/2 x 2″ union connections for PVC pip
- Stainless steel manifold
Specifications:
| Amperage Draw | 46 A |
| Brand | Coates |
| Cabinet Depth | 14 Inch |
| Cabinet Height | 17-1/2 Inch |
| Cabinet Width | 4 Inch |
| Flow Rate | 15 - 80 gpm |
| Heat Output | 11 kW |
| Heat Output BTUH | 37,543 |
| Item | Electric Heater |
| Maximum Breaker Size | 60 A |
| Phase | 1 Phase |
| Series | ST |
| Voltage Rating | 240 V |
| Water Connection | 1-1/2 Inch x 2 Inch Union |
| Wire Size | 6 AWG |
Please note: Coates heaters are made to order and ship on a first-come, first-served basis. Please allow 2–4 weeks for delivery.
Shipping, Installation & Warranty
Free Shipping: Orders ship within 1 business day unless otherwise noted.
Warranty Information & Support: Visit our warranty page or refer to the specific product user manual.
Disclaimer: Professional installation (not included) is required for warranty validation.
Note: Images are for representation.
