11 kw./220v /46 AMP 1 BTU HAYWARD SPA HEATER Weight 5.53 kg. Dimension 13.5 x 10.5 x 8.5 (Update 30/03/2026)
A swimming pool and spa heater capable of delivering heating performance up to twice its physical size. With its compact design, it can be easily installed in limited spaces, whether in an underground equipment room or under the stairs. It is also highly accessible for care and maintenance.
| Spa Heater Buying Guide | ||||||
|---|---|---|---|---|---|---|
| Model | Power | Voltage | Phase | Current | Min. Flow Rate | Pipe Size |
| CSPAXI55 | 5.5 kW | 240 V/50 Hz | Single Phase | 23 A | 15 m3/h | 1.5” |
| CSPAXI11 | 11 kW | 240 V/50 Hz | Single Phase | 46 A | 15 m3/h | 1.5” |
| Model | Heating Time (Raising water temp from 21°C to 37°C) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 200 Gallons | 300 Gallons | 400 Gallons | 500 Gallons | 600 Gallons | 700 Gallons | 800 Gallons | 900 Gallons | 1,000 Gallons | |
| CSPAXI55 | 160 mins | 240 mins | 320 mins | 400 mins | 480 mins | 560 mins | 640 mins | 720 mins | 800 mins |
| CSPAXI11 | 80 mins | 120 mins | 160 mins | 200 mins | 240 mins | 280 mins | 320 mins | 360 mins | 400 mins |
* The table above serves as a guideline only. Selecting the appropriate heater size also depends on other factors such as heat loss and environmental conditions during operation.

| Model | Description | Dimension (mm.) | |||||
|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | ||
| HT-HA-CSPAXI55 | 18,766 BTU / 5.5 kW / 23 AMP / 3 Phase / 50 Hz | 295 | 168 | 165 | 57 | 159 | 38 |
| HT-HA-CSPAXI11 | 37,532 BTU / 11 kW / 46 AMP / 3 Phase / 50 Hz | 295 | 168 | 165 | 57 | 159 | 38 |