Solar Pool Heating

By: Goldwater Solar  09-12-2011
Keywords: Pool, roof, Heating Systems

Solar Pool Heating

Why pay hundreds to thousands of dollars each year to heat your pool when you can do it for free?

Solar pool heating has been saving pool owners money for decades.  Our solar pool heating systems have a proven track record of reliability and performance.  The systems operate maintenance-free and work well with your existing pump and filtration system.  They can be installed to preheat the water before reaching your gas water heater, or can be sized to completely replace your traditional heating unit.  We can determine the best solution for your situation so that the system will pay for itself in only 3 to 4 years.

The solar pool heater also allows your system to drain itself to prevent freezing in the winter and, when combined with the solar controller, it knows when to circulate the water through your system.  Best of all, the systems are designed for a lifetime of use and come with a manufacturer’s limited warranty of 18 years!  On top of all the money you’ll be saving, you’ll also be reducing smog and climate change emissions thereby creating a more sustainable lifestyle – it just makes sense to do it!

How it works:

Solar collectors are installed typically on the roof.  Two pipes carry the pool water to and from the pool to the roof.  Sensors on the roof and inserted into the pool line read the temperatures and tell a controller when to circulate the pool water to the roof.  When the temperature on the roof is warmer than the temperature in the pool, a 3-Port valve automatically turns to direct the flow of water to the roof first and then to the pool. Pool water enters the solar collectors at the bottom and rises to the top through the collector.   As the water rises through the collector it is heated by the sun’s radiant energy.   The swimming pool water then returns to your pool to repeat the cycle until your pool is the right temperature.  If the temperature on the roof is cooler than the pool (such as at night or on cloudy/rainy days), the flow of pool water to the roof is closed and the pool water travels directly to the pool.  This prevents the panels from cooling the pool at night or on poor weather days.

Advantages of a Solar Pool Heating Systems:

- It will save you on your gas bills.  Most of our customers leave their gas heaters off or replace them completely with one of our solar pool heaters.  The payback of one of our solar pool heating systems is typically 4 years or less.

- Our solar pool heating systems are fully automated.  Our Goldline solar controllers have a digital display which allows you to read the temperature on the roof and the temperature of your pool.  There is a dial that allows you to set the temperature of the pool.  The controller automatically rotates a 3-Port valve to redirect the flow to the roof and so an additional pump is not required.

- The system runs off your existing pool pump so our solar pool heating systems don’t require any additional power to run.

- The solar pool heating system requires minimal maintenance.  The only maintenance required is to drain out the solar collectors before the first frost.  This can usually be done from the ground in less than 20 minutes.  Once this is done the system is ready for the next swimming season.

- The system will last a long time.  Not only are our systems warrantied for 18 years but will last well beyond 20 years paying for themselves many times over during their lifetime.

- Our solar pool collectors are Bisphenol A (BPA) free and are safe.

Sizing a Solar Pool Heating System:

A solar pool heating system is typically sized based on the surface area of a pool.  The starting point of a solar pool heating system is 50% of the surface area of the pool if you have ideal southerly exposure to the sun.  For example, if you have a 16′ x 32′ pool (or 512 sq ft), you would want a minimum of 256 sq ft of solar pool collector area.  Therefore if the collectors are 4′ x 10′ in size each, then you would need 6 or 7 collectors.

However, if your pool is significantly shaded or the roof faces east or west, you will need to scale your system up beyond 50% and will likely need 65% or more of the surface area of your pool in collector area.   Placing your collectors on a north facing roof will not work to heat your pool because the sun travels on the southern horizon.

Keywords: Heating Systems, Pool, Pool Heating, roof, solar pool heating

Other products and services from Goldwater Solar



Our high performance solar water heaters provide our customers with an environmentally preferable approach that achieves long term energy savings. Goldwater Solar specializes in the installation of solar water heating systems for residential, commercial, and industrial customers. In light of rising natural gas and electricity prices, solar water heating has become very cost-effective.


Solar Power

We can quickly determine what is possible for your situation and can help you apply to the Ontario Power Authority and your local utility for interconnection with the electricity grid. The electricity from your solar photovoltaic system is put back into the electricity grid and the local utility pays you for the electricity produced over a 20 year contract.


Solar Water Heating

Heat transfer fluid flows to your roof, through the solar collector where it heats up, and finally returns back to the solar storage tank that feeds your current natural gas or electric water heater. Over the last few years the cost of energy has risen significantly, making the cost for heating your water more expensive. For decades people have been using solar water heaters to heat their water using the sun’s energy.