My Cart
 

C-SPA Electric Heater 5.5 KW 240V

Hayward

SKU: CSPAXI55

Hayward electric spa heaters contain all of the sophisticated features and capabilities of heaters twice their size.

Features

Hayward electric spa heaters contain all of the sophisticated features and capabilities of heaters twice their size. The electric heaters fit into compact spaces — even under spa skirts or steps. Like all Hayward heaters, they are easy to install and service.

Features and Benefits

  • 304 stainless steel tank and threaded head
  • Safety sensor electric heating element
  • Service-ease design gives simple access to internal controls
  • Heater on indicator light
  • UPS Shippable
  • EXPERT LINE products can only be purchased through your local pool professional or in-store.  Exclusions, other terms, and conditions may apply.
  • 3+ Year Parts and Labor Warranties*

*When sold by a Hayward Rewards® partner. Exclusions, other terms and conditions may apply.

Brand Hayward
Channel Expert Line
GTIN 610377003971
Heating Capacity (BTU/hr) 18,766
Hertz - Heaters 60 Hz
Kilowatts 5.5 kW
Warranty - Labor 1-year
Master Carton Qty 1
Maximum Breaker Size (Amps) 30
Pallet Qty 54
Warranty - Parts 3-year
Phase - Heaters 1
Pool Type In Ground
Product Dimensions 11.6 " x 6.25 " x 6.6 "
Product Height 11.6 in
Product Length 6.6 in
Product Weight 14 lb
Product Width 6.25 in
Series Heaters Spa Heaters
Shipping Dimensions 13.9 " x 8.6 " x 10.8 "
Shipping Weight 12 lb
Sub Brand N/A
Voltage - Heaters 240V

Questions & Answers

12 answered question(s)

06/24/26

Q: My C-SPA Electric 5.5 KW 240V heats great , but the heater will not turn off once it reaching the set temp. What part needs replaced?

A:
Hi, that would be impossible to diagnose remotely. For help with this contact a local Hayward Authorized Service Center. You can find a list of them by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: How much this unit cost?

A:
We do not sell direct, but you can find a list of local Hayward Authorized Dealers by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: What's the price of that electrical heater

A:
We do not sell direct, but you can find a list of local Hayward Authorized Dealers by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: I have a Cspa xI 5.5. Would you explain the GHP 20 n 40 figures in the specifications? Thanks.

A:
Hi, it the number of gallons you can expect the heater to give a 20 or 40 degree temperature rise to per hour. In other words, you can expect the 5.5 kw heater you reference to raise the temperature of 120 gallons of water 20 degrees per hour.

By Hayward Support

06/24/26

Q: I WANT TO PURCHASE THE C-SPA-XI 5.5KW HEATER TO REPLACE THE SAME MODEL I NOW HAVE. PLEASE SEND ME INFORMATION ON HOW TO BUY THIS MODEL.

A:
Hi, we do not sell direct. You can find a list of local Hayward Authorized Dealers by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: Hello, Can this heater be used for an outside in ground spa? If not made for the elements is it possible to have in an enclosure?

A:
Hi, this heater can be installed outdoors. It is in an enclosed metal box. It should be installed by a qualified professional.

By Hayward Support

06/24/26

Q: I have an indoor 2200 gallon pool I have have a 5.5 Kw which was a ray pack. I am thinking of switching to the Hayward. Does the plumbing match with the Raypack els 552-2 and is there a benefit to go to the 11 KW and would I have to change the plumbing?. It is a physical therapy pool with a plastic heat cover at night and is indoors

A:
Hi, I am not familiar with the Raypak product, but most likely the plumbing will not line up exactly. Going to an 11 kw heater will greatly increase the ability of the heater to heat your spa, but it will require larger wire and power supply.

By Hayward Support

06/24/26

Q: Hi, I live in Puerto Rico! The water is pretty warm down here (78F-80F degrees). What would be the best energy-efficient electric heater you would recommend for a 550gal spa pool?

A:
Hi, we would suggest a small heat pump such as the HP70HA2 as the most energy efficient way to heat your spa.

By Hayward Support

06/24/26

Q: I replaced the contactor,high limit and thermostat on my hayward C-SPA-XI55 heater and it continues to over heat. What could be a possible cause? Thanks

A:
Contact a local Hayward Authorized Service Center for help in repairing this device. You can find a list of them by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support

06/24/26

Q: Can I use CSPAX155 to heat in ground hot tub Approximately 400 gallons 6ft x 5ft x 3ft deep thanks Tom

A:
HI, yes you can, but we would recommend the 11kW version instead of the 5.5kW version. Speed of heat up will be cut in half.

By Hayward Support

06/24/26

Q: Will this heat a 3000 gallon in ground pool?

A:
Hi, the answer to your question depends on several things. 1. what is the desired temperature? 2. Where are you located geographically? 3.Is the pool covered with a thermal barrier? the CSpa 11 is an 11Kw electric heater.That translates to ~34,000 ...

By Hayward Support

06/24/26

Q: I have a Hayward Spa Heater, model number CSPAXI11 and I am trying to find out where I can purchase a replacement heater element with 5500 w 240 volts to fit the heater.

A:
HI, you can find a dealer near you by clicking on the Dealer Locator tab on the home page of our website Hayward.com

By Hayward Support