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Pool Heater Evaluation
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Electric Spa & Hot Tub Heaters

We feature two electric spa heaters, Hayward and Raypak.  Each company makes two spa heaters, a 5.5 KW model that will heat a spa up to 500 gallons and a 11 KW model, that will heat a spa up to 1,000 gallons.  These spa heaters use a heating element to produce heat, much like a tankless water heater.


  Raypak Pool Heat Pumps       Hayward Swimming Pool Heat Pumps  
  Raypak Electric pool HeaterWhen electricity is the energy choice for pool heat pumps, Raypak is the quality choice: dependable, trouble-free, and performance-proven, with corrosion-free, 100% copper and bronze waterways. Two compact models - 5.5kw and 11kw - electric pool heater built to last and keep your swimming pool heated by the company renowned for reliability. Lower your pool heating cost with a new heater.


SpaPak spa/hot tub pool heaters with electric power furnish sustained heat to provide the maximum benefits of hydrotherapy, including stress reduction, relaxation and arthritis/pain relief.

Longer Life
Because all waterways are corrosion-free copper and bronze - not aluminum. And, SpaPak features large size, heavy duty Incoloy heating elements that lasts far longer than ordinary water heating elements.

Because SpaPak has extra quality and safety built-in - a pressure switch to prevent operation without water flow, a high limit temperature control to prevent overheating and a dependable quality thermostat.

Easy to Install
With a compact design that fits into small spaces. Standard size, full flow 1-1/2" inlet and outlet connections are conveniently located. External current leak protectors are not required.

Product Warranty: 2 year limited warranty
Against defects in materials and workmanship (see written warranty for details). In addition, every SpaPak is thoroughly tested before shipment.



Hayward Electric pool Heater

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. Item #CSPAXI  


304 stainless steel tank.
304 stainless steel threaded head, electronic heating element.
Heater on indicator light.

Product Warranty: 1 year limited warranty
Against defects in materials and workmanship (see written warranty for details).

Model Shipping Price Order
  Raypak 5.5kw   *Free Shipping $585.00
  Raypak 11kw   *Free Shipping $625.00
Model Shipping Price Order
  Hayward CSPAXl 5.5kw   *Free Shipping $585.00
  Hayward CSPAXl 11kw   *Free Shipping $625.00
Sizing Guide

The following table shows the heating capability for each model in temperature rise per hour with a given amount of water. For example, the 11kw unit will raise the temperature of 450 gallons of water 10 degrees Fahrenheit in one hour. To determine the amount of gallons of your spa, multiply the surface area x average depth x 7.5.

Always cover your spa or hot tub when not in use to minimize heat loss and evaporation, and to decrease the time need to heat water.  View available pool covers.

Water Temperature Rise in oF/Hr.
  5o 10o 15o 20o 25o
Gallons of Water
5.5KW 450 225 150 113 95
11KW 900 450 300 225 190
  Specifications & Dimensions
  Electric Pool Heater Dimensions
  Model   Price   A     B*     Water  
  C     Voltage  
  5.5KW $555.00 16-1/8" 8" 1-1/2" 4" 240 26
  11KW $585.00 23-1/8" 15" 1-1/2" 11" 240 31
*Center-line distance between water connections.
CSPA XI Hayward Electric Spa heater for hot tub
Model No KW Voltage Pipe Size Ctn.Qty Ctn.Weight
CSPAXl55 5.5 240 1 1/2" 1 14 lbs.
CSPA Xl11 11 240 1 1/2" 1 14 lbs.

Model No Price KW Voltage Pipe Size Ctn.Qty Ctn.Weight
CSPAXl55 $535.00 5.5 240 1 1/2" 1 14 lbs.
CSPA Xl11 $585.00 11 240 1 1/2" 1 14 lbs.
  Download: Hayward Electric Heater Brochure PDF

Download: Raypak SpaPak Installation and Operating Manual PDF

Download: Raypak SpaPak Warranty Information

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