Solar Pool Heating

Free Heat provides you with a highly efficient, Australian Made solution to your Solar Pool Heating needs.
Solar Heating system designed by Free Heat is not only an affordable investment, it uses the latest technology to make the best use of the Free Energy from the sun each day.
It is friendly to the environment and very economical to operate.
Don't delay call now to enjoy the benefits of our state of the art solar pool heating.


Its the unique PATENTED SHAPE of the Free Heat solar collector that’s the secret.

Solar radiation travels in parallel lines.

1. The three flat surfaces surrounding all 8 water tubes on the Free Heat solar collector increases the nett physical surface area exposed to the sun's radiation. More area - more heat aborbed at any given point of time.

2. A flat surface will always absorb the incoming radiation more intensely than any tube that has a round, oval, or ribbed outer surface.

3. To this exclusive feature, our latest innovation has been to compress the normally round water channel within each tube into an oval shape.

4. template of tubing.
By spreading the water to a thinner and wider section, the heat in the absorber is given up to the water quicker ,enabling it to heat a greater volume, faster.

The oval shape has another efficiency benefit, in that it spiral’s the flowing water within each tube, thereby exposing the entire water mass travelling through our Free Heat solar collector to the larger, more intense area of radiation being absorbed by the flat, outer surfaces.

The end result is that your pool will heat up quicker and achieve a higher temperature gain in a shorter amount of operating time. Cheaper to run overall.

“As the flat surfaces of the tubes absorb up to 19% more incident heat from the sun's rays by comparison to the ordinary round tubed solar absorbers or panels, you can see that there will be a corresponding increase in the heat absorbed by the circulating water in the tubes, thereby increasing the overall efficiency of the Free Heat Solar Pool Heating unit when compared to other systems.“ patent extract.

The design efficiency of a solar pool heating system is determined by a number of factors. Firstly, by its location.

If in Australia,
are you in a warmer climate, Sydney, Port Macquarie, Gold Coast, Brisbane to Mackay up to Cairns, or the colder regions of Melbourne, Hobart, Adelaide or Perth?

In NewZealand: North or South Island

In the Southern Hemisphere:

1. Any roof that is sloping towards the North is clearly the most efficient.

2. However, Free Heat solar pool heating can be successful when professionally designed and sized to suit the direction it faces, and will be effective anywhere from an Easterly direction through North to West.
Free Heat solar pool heating on a flat roof is also excellent because we have the flat surfaces on the tubing that mimic the slope of a normal roof.
Our designs are successful when an area of land is allocated near to the pool if a suitable roof is not available.

3. The number of square metres of solar collector that are installed when compared to the size, or surface area, the depth and water volume of the pool to be heated.

4. The minimum recognised guidelines are to start with the same surface area as the pool, duplicated as solar collector eg: 9m x 4m pool = 36 sqm solar collector.

Be very cautious when claims are made such as the following:

*Our solar collector is so efficient we don't need to use as many square metres.

*Or : our collector has more lineal metres of tubing per square metre therefore....

The truth is this:
There is a finite amount of solar radiation that falls onto a square metre of solar collector per day.
Its simple - The less square metres of solar collector area you end up with, the less heat you can gain.

Always ask how many square metres of solar collector are being offered.


integra solar pool heating unit

In this day and age of complex devices and the programming requirements for push button digital technology, Keeping it Simple has always been our motto, and this is becoming more sought after daily.

The Free Heat ULTIMAA and INTEGRA DIGITAL Temperature Controllers –

No other control devices could possibly have as many features and yet be so simple to use.
We have six models to choose from depending on how your pool has been piped and what other accessories you use.

We even have a radio remote controlled unit and one that can control multifunction solar with other heater installations to minimise nett running cost.
Older pools with only the filter piping available will need our Standard INTEGRA Model, no timer.

Newer pools that have separate pipes fitted into the pool for heating can choose from the Standard Timer Model or the Battery Backup ULTIMAA Timer model.(shown below)

The two buttons on the front of the controller control the menu functionality, setting the clock, setting the temperature required, On and OFF, manual override etc.
AUTOMATIC TROPICAL MODE enables you to set a temperature for the pool and the unit will during the day if needed and cool down at night to the set temperature.
Our ontrollers canself diagnose minimising maintenance.

Once turned ON , a temperature test cycle will begin which lasts for about 3 to 4 minutes.
During this time the solar pump circulates water through the Free Heat solar pool heating system and the blue and red sensors monitor the temperature differential between the pool water and the roof temperature.

ultimaa solar pool heating unit

Assuming that the roof sensor is hotter than the pool water by at 5 degrees Celsius, and that the pool is not up to its set temperature, the solar pump will continue to send the pool or spa water through the solar collector until the pool actually reaches the set temperature on the digital readout.

If the returning water comes back within the 1 degree differential the controller senses this and shuts the pump down because there would be no appreciable gain at that point.
If the test cycle reveals insufficient heat, the controller will continue to monitor and a repeat test cycle will occur within 15 to 20 minutes.

When switched to the Tropical mode, the Free Heat solar system will let you cool the pool by running it at night time for a few hours during the hot summer months.
In Auto, all you have to do is set the Temperature dial to the exact temperature you would like, relax & enjoy.

The Digital display will tell you everything you want to know without touching buttons, its casing is weather proof but we recommend protecting all the equipment from the weather.


The unique dovetail mechanical keyway between each tube ensures that the solar pool heating system will be securely bonded to its mounting surface by our recommended cold setting S870 adhesive.

A polypropylene Clip system is available, if preferred.
• Each water channel is totally exposed to the sun side which is where the most heat comes from. (refer to template sketch above)
• Every Free Heat solar pool heating system is designed specifically to suit your requirements, to maximise its efficiency, to extend your swimming season, and also to blend aesthetically in to your home's environment so it becomes an asset you can rely upon.
• Adherence to our recommendations and the attention to detail, colour matching pipe work to the walls and roof, ensuring the piping is neat and tidy, and shaping the solar absorber to fit neatly into the available roof area guarantees you an investment you will be proud of and one you will be happy to recommend to others.
• The DIY handyman kits we supply and design come with a comprehensive instructions manual to fit and operate.
• Our systems come with stainless steel storm banding in high risk areas such as Queensland.


The robust non collapsible FREE HEAT solar collector is also used as a heat exchanger to both collect and distribute heat in seedling propogation, by food and flower growers throughout the hydroponic industry.
• Many unusual horticulture applications.
• In Aquaculture: prawn farming, crocodile hatcheries, chicken hatcheries, piggeries, heat recovery.
• Underfloor hydronic heating.
• Commercial pool heating ,high volume pre-heating water for Hotels, Motels,and Laundry hotwater systems.

Free Heat Solar Pool Heating agencies are available across Australia, WA in particular, and in the North Island of NZ . International interest welcome – call now.
$15,000 gets you started- covers initial stock and training.

Examples of the
Wrong Choice
for pool heating:

(Click to enlarge)

Examples of the
Free Heat Choice
for pool heating:

(Click to enlarge)
Nerang Tallai Yatala
Currumbin Gavin Mt Gravatt
Arundel Bribie Island Chapel Hill, Brisbane
Runaway Bay Gold Coast Qld Benowa
Burleigh Waters Perth WA Banora Point
Canungra Currumbin Valley QLD
Gold Coast
Mandurah WA
Broadbeach QLD Redland Bay QLD Port Macquarie NSW
Byron Bay NSW Raby Bay QLD Mermaid Waters QLD
Alstonville NSW Kingscliff NSW Broome WA
Evans Head NSW Hope Island QLD Christchurch NZ
Coolangatta Paradise Point QLD Mudgeeraba
Northern Rivers

Examples of the
Free Heat Choice
for Commercial pool heating:

(Click to enlarge)

Edge on Beaches Apartments in Agnes Waters Qld

Karalundi WA.
Temperature  at 73.6C within the Free Heat solar collector , day temperature was 33C ambient.
Taken at 1.30pm.

Karalundi Covers
Karalundi FHI Solar Karalundi Plant Room

Karalundi Aboriginal Education Community Pool, north of Meekathara
Western Australia.

Townsville Noosa Heads Sydney

Examples of the
Free Heat Choice
for DIY pool heating:

(Click to enlarge)
Canterbury, Christchurch, Auckland, Nelson, New Zealand

Process of the
Free Heat Choice
for Colourmatched Pool Heating:

(Click to enlarge)

Contact Free Heat
Back to home page

Copyright 2010 Free Heat Industries