SmartPool SunHeater S120U Review

Lengthen your swimming pool summer the eco-friendly system with the SmartPool SunHeater S120U Universal Solar Pool Heater.

Are you looking for an environmentally friendly swimming pool heater? If so, you should try the SmartPool SunHeater S120U Universal Solar Pool Heater. It is an inexpensive way to heat your pool water because you won’t be dependent on electricity. Instead, you will use the UV rays of the sun to heat your pool.

The SmartPool SunHeater S120 works alongside your pool pump so that water can be pumped through solar collectors. As the sun’s UV rays shine down on the solar collectors, the passing water gets heated in the process and cycles back into the pool. That is how the pool water stays warm.

The Price 

Solar pool heaters are traditionally more expensive than standard pool heaters. However, the upside is that you won’t have higher power bills each month. You also won’t have higher fuel bills either. All of the power comes from the sun, which is free for you to utilize. Your only expense is the one-time upfront investment of purchasing the solar heater.


The SmartPool SunHeater S120 requires sunlight for a minimum of six hours per day. This provides the solar collectors with just enough sunlight to keep the pool water warm. The solar pump will increase the pool temperature by no more than 6°F in the summertime. It should be sunny outside for the solar collectors to receive sunlight. If the weather is rainy, cloudy or snowy, you won’t have warm pool water. In fact, it will take about two days of sunlight to restore the warmth to the pool.


While reading the Amazon reviews for the pool heater, the average rating is 3.1 / 5.0 stars out of 68 different ratings. People’s biggest complaint was that the pool heater does not maintain a constant temperature unless it is exposed to several hours of sunlight.

However, in November 2019, Best Reviews Guide gave the pool heater a rank of first place. The installation process was found to be very easy for do-it-yourselfers. It is even easier to operate than electric pool heaters and gas pool heaters because there are no complicated LED temperature control panels to manage.

According to Magesolar, the SmartPool SunHeater S120 gives consumers the most value out of any other solar pool heater. It has excellent efficiency ratings and a long lifespan. Most importantly, it will help reduce the threat of carbon emissions that plague our environment. You might see your pool heating costs get reduced by as much as 70%. That will make up for your initial investment over time. 


Overall, you definitely should purchase the SmartPool SunHeater S120. It is affordable, environmentally friendly and does an excellent job of heating pool water. You only need six hours of sunlight per day in your environment and an existing pool pump. No fuel or electricity is required.


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