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What do I need to know about pool heat pumps?
How do I choose a heat pump?

Our team of experts are ready to guide you through your pool heat pump selection. The size of a heat pump is determined by the pool size, climate, whether you wish to swim through winter or not, and if you plan on using a pool cover. Feel free to fill the heat evaluation form on our website: Pool Heat pump Calculator and you will instantly receive a pool heating evaluation which will answer all of your questions on size required, price, running costs etc.

How much does it cost to install a heat pump?

Installation cost can vary based on site conditions, electrical power availability and unit size. For an estimation, you can send us some photos of your pool, surrounding area, pool equipment and electrical sources. Alternatively, contact an installer from our national network online who would be more than happy to guide you through the process.

How much does it cost to heat a swimming pool?

Our online calculator is able to give you an instant heat evaluation which includes running times and costs. Huge energy savings can be achieved when using our inverter pool heat pumps compared to gas or other methods of heating - up to 85% less running cost than conventional heating methods saving you $3000 to $5000 a year.

What is a heat pump COP?

COP stands for coefficient of performance and is a measurement of efficiency for heating and cooling machines. It is measured by the total energy output (kw) that is leaving the unit in forms of heating or cooling over the total energy input (kW) that is entering the unit in forms of electricity. The higher COP, the more efficient a unit is and we are proud to say that our units are remarkable for their high COPs of 6.5 to 10 on average. This means 1kW of energy input yields 6.5-10kW of heating output.

What's the warranty?

Summer Eco and Eclipse units have 2 years warranty, while the Elite Silent, being our premium range, offers 4 years. Both units have 25 years on the titanium heat exchanger.

What is the difference between your Summer Eco and the Elite Silent?

We get asked this a-lot! All our units offer the latest inverter technology, with wifi controls included and are more than capable of heating your pool. Our Elite range, being our premium product, has a few additional benefits. The most obvious is the aesthetics - with its unique smooth front panel and aluminium casing, this stylish unit is an obvious choice when on display. The air intakes from the side and discharges out the back. The Elite unit is slightly more efficient with a lower noise level and comes with 4 year warranty.

Our Summer Eco range is still a popular choice amongst our customers and an excellent choice for the more budget conscious. This unit has a front discharge fan and comes in an anti-corrosive ABS plastic case. Our Summer Eco range has a 2 year warranty.

Why should I choose Madimack?

Don't settle for less! Did you know our units are designed and manufactured according to Australian and European standard, on top of that they are independently verified for sound, efficiency and performance by TÜV Rheinland for your peace of mind? Our heat pumps boast only the highest quality components sourced from leading worldwide companies. As well as 30% thicker copper for longevity, an insulated control box for further protection, larger heat sink (radiator) for extreme weather protection and corrosion resistant casings even down to the screws!

All our products offer the latest inverter technology, titanium heat exchanger with 25 years of warranty, automatic defrost feature, and built in Wi-Fi control meaning you can operate your heat pump no matter where you are.

We pride ourselves on our customer service and after sales support. Please check our 5 star product reviews to see what our happy customers have to say about our service.

Pool heat pump operation and understanding pool heat pumps
How does a pool heat pump work?

Heat pumps are basically a reversed cycle of an air conditioner, refrigerant R32 is the working fluid in our heat pumps, initially the fluid is liquid, refrigerant absorbs energy from the ambient air through the evaporator causing it to evaporate which leaves the R32 in the gas state. After that the gas refrigerant escapes to the compressor in which it’s heat and pressure are raised to the highest in it’s cycle, then it flows to the condenser, which operates as a heat exchanger, the heat of the refrigerant is exchanged with the low temperatures of the water in the pool system, causing the refrigerant to turn into liquid and heating the pool water. Finally, the liquid refrigerant goes back to the initial point which is the evaporator to repeat the cycle again for pool heating.

What happens when the heat pump reaches the desired swimming temperature?

Heat pumps have built in thermostats that monitor the pool's temperature, when the swimming temperature is reached the heat pump is turned off automatically, it comes back in operation only if the pool temperature is dropped by 1 degrees less than the set temperature. All our heat pumps have the best of inverter technology which allows it to drop to a lower speed and higher efficiency, maintaining an efficient heating process while avoiding consuming excess power. You may notice a reduction of the fan speed once the heat pump displays the set temperature this is how it maintains a perfect swimming temperature whilst your filtration pump is running.

What is the coldest temperature at which the heat pump can be operated?

our heat pumps can be operated in temperatures as low as -10 degrees Celsius and as high as 45 degrees celsius.

What is defrosting option in our heat pumps?

Defrosting is a process used to protect the heat pump from frosting when the climate reaches very low temperatures, a reversible valve is installed in any unit that we have by default, this valve reverses the flow of the heated refrigerant at the compressor to flow back to the condenser to keep it from frosting, this is done automatically in case of any frostings started to form on the unit.

How fast can the pool be heated by the heat pump?

The time needed to heat a pool depends on how big the heat pump that you have is, the volume of the pool and the heat loss from the surface of the water in the location you are in.

Depending on the month of the year it is, the first time you switch on the heat pump you can expect a temperature rise of between 0.1 and 0.3 degrees per hour. This also depends on the heat pump installed as well. For a quick guide to calculate how many hours it will take to heat the pool is a calculation (pool volume x 4.18 x temperature rise)/ 900 Then divide the answer by the kW of the heater chosen and that is the approx. number of hours. (Note this is just to heat up the water and doesn't take into consideration the heat loss during heat up and other environmental factors)

A heat pump is designed to maintain a pool temperature by running everyday. This ensure the water is always ready to swim in. Note that a pool heat pump sized for Extended season only will not be able to achieve the set temperature in the winter months.

What is the life expectancy of a heat pumps?

With regular maintenance and servicing, our heat pumps should extend much further into the future than our warranties.

What type of water do i need to have in my pool to use a pool heat pump?

All our heat pumps come with the highest quality titanium finned heat exchangers, allowing you to use any type of water chemistry without worrying about the units lifetime.

Is it important to have a pool cover?

Having a pool cover will significantly reduce the size of the heat pump required for your pool, thus reducing the unit cost, that is due to its ability to save the heat supplied to the pool from being lost to the atmosphere.

How much space should I keep around my heat pump?

We have included details for minimum ventilation requirements for installations in the installation manual, click here for:

  1. Elite Silent unit installation manual.
  2. Eco unit installation manual.
Can I use solar heating and my inverter heat pump simultaneously?

Yes that is possible however, this will probably not reduce the size of the heat pump significantly, this is because solar heating cannot be operated in certain climate conditions for instance if the weather is cloudy only the pool heat pump will be operating thus you need it’s full capacity to work.

Maintenance and troubleshooting
Why is water coming out of my heat pump?

It is very normal for water to come out of the bottom of the heat pump. This is usually caused by condensation forming because of the heat transfer. The easiest way to test that is to capture the condensed water and test it for chlorine or salt. If it is clear then it is very normal. The heat pump comes with a drain attachment and hose to remove the water to a drain.

If the water does have traces of chlorine or salt then there may be a leak on the water pipe, please fill out the form on this page and we will contact you with some further fault finding tips.

What does E3 and E6 mean on the heat pump's screen?

E3: is the no adequate water flow running through the heat pump, in this case check your filteration system and make sure that it's running, if it's already running then wait for a short period of time for the water to flow through the heat pump.

E6: is excessive temperature difference in the heat pump's water inlet and outlet caused by the exe, make sure to backwash your system in regular bases to clean the filters, not doing so will cause this error in your heat pump.

What is the meaning of a certain error that is showing on a heat pump’s screen?

Find all the error codes and their references in the installation manual of any heat pump that you purchase (Find it in Eco Manual p. 18, and in Elite Manual p. 19) feel free to contact us for any assistance you need in maintenance and troubleshooting

  1. Elite Silent unit installation manual
  2. Summer Eco unit installation manual
My heat pump is operating but not heating, why?

Check the air temperature, a pool heat pump requires warm air to operate most effectively, however, in cooler temperatures, the heat pump runs longer to reach the designated water temperature.

Make sure your pool pump is providing the heat pump with a sufficient water flow. A heat pump needs a steady supply of water to properly handle heat transfer and production.

Clear any obstructions or debris from the vents. This ensures optimal air flow, which is essential to an air-source heat pump’s heating process.

Check the temperature of the thermostat, if the pool's temperature is already higher than the thermostat, the heater will not operate.

Wifi and app configuration
How do I connect my unit to Wi-Fi?

In our heat pump installation manual we have added a step by step procedure to connect the heat pump to Wi-Fi and configure it through our app. Check the instructions in the installation manual for our units below:

  1. Elite Silent unit installation manual
  2. Summer Eco unit installation manual
What are the uses of the mobile app?

Connecting your heat pump with the app will give you full access to the heat pumps controls wherever you are as long as you have Wi-Fi. You can turn the heat pump on/off, monitor the temperature of the pool and set timers for the heat pumps operation periods during the day. Note that the circulation pump should also be running for the heat pump to operate.

Tutorial Videos

WiFi app Summer Eco connection

Wifi App Elite connection


Error codes

Madimack Error Code