When electricity is the energy choice Raypak is the quality choice -- dependable, trouble-free, performance-proven - with corrosion-free, 100% copper and bronze waterways. Two compact models - 5.5kw and 11kw - built to last by the company renowned for reliability. SpaPak spa/hot tub electric heaters furnish sustained heat to provide the maximum benefits of hydrotherapy...including stress reduction, relaxation and arthritis/pain relief.**FEATURES**- **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. - **Troublefree**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. - **Two Year Limited Warranty**Against defects in materials and workmanship (see written warranty for details). In addition, every SpaPak is thoroughly tested before shipment. - **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 gallonage of your spa, multiply the surface area x average depth x 7.5. **Water Temperature Rise in oF/Hr.**Model5°10°15°20°25°**Gallons of Water**5.5KW4502251501139511KW900450300225190Always 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.**Specifications & Dimensions**ModelAB*WaterConn.CVoltageSinglePhaseShippingWeight(lbs)AMP DrawConduit SizeWire SizeFuse Size (amps)5.5KW16-1/8"8"1-1/2"4"24026231/2"103011KW23-1/8"15"1-1/2"11"24031461"660*Center-line distance between water connections. ### Raypak/Rheem Heater Warranty PolicyRaypak/Rheem Internet Sales Policy (http://www.raypak.com/Support/Internet%20Sales%20Policy)Warranty policy and support for pool and spa heaters manufactured by Rheem, under the names Rheem, Raypak or Ruud, is established and enforced only by the manufacturer. In 2013, Rheem/Raypak warranty policy was revised to state that the company does not support Internet sales of its products and, further, that heaters not installed by a certified technician may not be covered by warranty.If you, our customer, purchase a Raypak heater from us, please be advised that failure to comply with the Raypak warranty policy requiring professional installation will void the warranty. While Pool Plaza is happy to assist you in your purchase of the Raypak product, any warranty issues will be between Raypak, the manufacturer, and you, the end consumer.