As an electric resistance heater, the Hayward
CSPAXI11 generates heat by applying an electrical current to a heating element, which is known as a resister, inside of the pool heater. As electricity heats up the resister, water is passed over the resister and heated before exiting into your pool. The simple process continues until your pool reaches your desired temp
. When not in use, the resister cools back down until you flip the switch and crank up the currents again.
With a high-quality 304 stainless steel tank, heating element, and threaded head, this little engine that could is highly corrosion-resistant
and guaranteed to perform for years.
When you factor in its advanced safety sensor, useful indicator light, service-ease design, and surprisingly low price tag
as well, it’s easy to see why the Hayward CSPAXI11 is one of the most popular spa and small pool heaters being made today.
Producing 11 kilowatts and 240 volts, the Hayward CSPAXI11 pulls approximately 45 amps, which means you’ll need at least a 50-amp wire and a 40-amp breaker in order to operate it. If you opt for the cheaper route and choose a wire not designed for the current produced by the heater, it may overheat, melt the insulation, and potentially fail or cause a fire. Since it’s an electric heater, there are no gas lines or connections to worry about. Once you have the right wiring and breaker, actually installing the heater and firing it up is rather simple.
In addition to being easy to install, this affordable spa heater is refreshingly easy to use as well. If you have a 3/4 pump
, you simply need to flip the switch to fire it right up and begin heating you pool or spa. If you have a bigger pump, however, the reset button on the back of the heater may pop when the heater stops or the heater may not turn on like it should when the pump starts. If this happens, you’ll need to adjust the water pressure
valve located inside of the heater until it works correctly.
Best Uses for the Hayward CSPAXI11 11-Kilowatt Pool Heater
The Hayward CSPAXI11 is a compact electric resistance heater designed for spas and small pools. That being said, it’s important to note that it doesn’t provide instant heat. In fact, if you have a 1,000-gallon spa, it will heat it by five degrees per hour. Thus, if the water in your spa is 75 degrees, it will take five hours to heat it up to a steaming 100 F. If you have a larger above ground pool, you can expect it to take your pool water from 70 F to 80 F in approximately four hours, which is pretty impressive for such an inexpensive little heater.
The Hayward CSPAXI11 may not be large enough or powerful enough to heat up an Olympic-size pool, but if you’re in the market for an efficient, reliable, and cost-effective heater for a spa or small pool, this mighty little heater is hard to ignore. With low operating costs and an even lower price tag, the Hayward CSPAXI11 is tough to beat.