Coates ST Series Electric Heater 11kW 1 Phase 240V 12411ST
COATES HEATER COMPANY INC
SKU: 12411ST
Coates ST Series 12411ST Electric Heater 11kW 1 Phase 240V
The Coates 12411ST ST-series electric heater provides 11kW of heating using a 240V single-phase electrical supply. Its stainless-steel water manifold and Incoloy heating elements transfer heat to circulating pool or spa water.
A digital thermostat provides temperature control, while a pressure switch and manual-reset high-temperature limit support the heater’s operating protections. Proper electrical capacity and water flow are essential when sizing and installing this heater.
Product Features
- Coates electric pool and spa heater
- Part number / listing SKU: 12411ST
- Product Line: ST Series
- Heating Output: 11 kW
- Voltage: 240V
- Phase: Single phase
- Elements: Incoloy
- Controls: Digital thermostat
- Listed Flow Range: 15–80 GPM
Product Details
| Brand | Coates |
| Part Number / SKU | 12411ST |
| Product Type | Electric pool and spa heater |
| Product Line | ST Series |
| Heating Output | 11 kW |
| Voltage | 240V |
| Phase | Single phase |
| Elements | Incoloy |
| Controls | Digital thermostat |
| Listed Flow Range | 15–80 GPM |
Compatibility
- Pool or spa systems meeting the 12411ST electrical, flow, and installation requirements
- Confirm the exact model and part number before ordering.
Common Uses
- Heating a compatible pool or spa
- Replacing a matching electric heater
Installation Notes
- Have a qualified installer confirm circuit capacity, wiring, grounding/bonding, and required water flow.
- Install according to the exact model’s manual and local requirements.
- Verify normal circulation and heater controls before returning the system to use.
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Maintenance Tips
- Maintain the specified water balance and keep circulation unobstructed.
- Inspect for leaks and service the heater at the manufacturer’s recommended intervals.
- Winterize the heater according to its instructions where required.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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