Avenza Pro

Pool heat pump calculator Australia
Pool Heat Pump Sizing Tool

Pool Heat Pump Calculator Australia

Estimate your heating time and recommended Orilux heat pump model using pool volume, postcode, ambient temperature, swim season, target temperature and pool cover use.

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What size pool heat pump do I need?

The right pool heat pump size depends on your pool volume, location, ambient temperature, desired water temperature, swimming season and pool cover use. Enter your pool details below to calculate the recommended heat pump capacity and estimated heating time for Australian conditions.

Pool Heating Calculator

Estimate Heating Time and Recommended Orilux Model

Adjust the settings below. Results update instantly.

50,000 L
10,000L90,000L
🔥 Recommended Heat Pump

OX26 22kW

Based on your pool size, ambient temperature, swim season and pool cover use.

Estimated Current Water Temp18°C
Target Temperature28°C
Ambient Temperature14°C
Estimated Heating TimeCalculating...
Thermal Energy RequiredCalculating...
Recommended Runtime10–12 hrs/day
Required Effective OutputCalculating...
Selection TargetUp to 2 days
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Estimate only. Actual heating time depends on ambient temperature, wind, humidity, pool cover use, plumbing, heat loss and installation conditions.

How It Works

What the Calculator Considers

The calculator uses pool volume, selected ambient temperature, desired water temperature, swim season and pool cover use to estimate heating demand and recommend an Orilux model.

Cooler ambient temperatures, larger pools, higher target temperatures and no pool cover all increase heating demand.

Orilux pool heat pump beside a swimming pool

Pool Volume

Larger pools require more thermal energy and generally need a larger heat pump.

Ambient Temperature

Lower air temperatures reduce heating performance and increase estimated heating time.

Target Temperature

Heating to 30°C or 32°C requires more energy than heating to 26°C or 28°C.

Pool Cover

A pool cover reduces heat loss and improves heating performance, especially overnight.

Recommended Orilux OX26 Models

The Orilux OX26 range is designed for premium pool heating performance, quiet operation and efficient extended-season swimming.

OX26 11.5kW
OX26 16.5kW
OX26 19kW
OX26 22kW
OX26 26kW
OX26 32kW
R290 pool heating technology
Premium Pool Heating

Why Orilux Uses R290 Technology

Orilux OX26 heat pumps combine R290 refrigerant technology, inverter performance, quiet operation and high-efficiency heating.

They are designed for homeowners who want premium pool heating, efficient performance and strong support through Avenza Pro’s dealer network.

Learn About R290 Pool Heating
Pool heating calculator for Australian pools
Australian Pool Conditions

Correct Sizing Helps Improve Performance

The best heat pump size depends on pool volume, ambient temperature, desired temperature, cover use and how quickly you want to heat your pool.

Pool Heat Pump Calculator FAQ

Pool Heat Pump Sizing Questions

Find answers to common questions about pool heat pump sizing, heating time, pool volume, climate, temperature and choosing the right kW heat pump for your swimming pool in Australia.

What size pool heat pump do I need?

The right pool heat pump size depends on your pool volume, location, ambient temperature, desired water temperature, swimming season and whether you use a pool cover. Use the Avenza Pro Pool Heat Pump Calculator above to estimate the recommended heat pump capacity in kW for your pool.

How do I calculate the right size pool heat pump?

Pool heat pump sizing is calculated using more than pool litres alone. Pool volume, local climate, target temperature, heat loss, pool cover use and the months you want to swim all affect the heating capacity required. Enter these details into the calculator above for a more accurate recommendation.

What kW heat pump do I need for my swimming pool?

The required heat pump kW will vary according to the size of the pool and the conditions in which it operates. A larger pool, colder climate, higher target water temperature or longer swimming season will generally require greater heating capacity. The calculator above estimates the appropriate kW range using your individual pool conditions.

Can I size a pool heat pump by pool litres?

Pool volume is an important starting point, but litres alone should not be used to select a pool heat pump. A 50,000 litre pool in Melbourne may have very different heating requirements from a 50,000 litre pool in Brisbane. Climate, season, target temperature and pool cover use should also be considered.

Does my location affect pool heat pump sizing?

Yes. Location can significantly affect the size of pool heat pump required. Cooler regions generally experience greater heat loss and lower overnight temperatures, which can increase heating demand. The Avenza Pro calculator uses location and temperature conditions as part of the sizing estimate.

What size pool heat pump do I need in Melbourne or Victoria?

Pools in Melbourne and Victoria often require more heating capacity than pools in warmer Australian climates, particularly for spring, autumn or year-round swimming. Pool volume, desired temperature, swim season and cover use should all be considered when sizing a heat pump for Victorian conditions.

Is a bigger pool heat pump better?

A larger pool heat pump can heat the pool faster and may maintain temperature more effectively during cooler conditions. However, the best result comes from correctly sizing the heat pump to the pool, climate and intended swimming season rather than simply selecting the largest unit available.

Should I oversize my pool heat pump?

Some additional heating capacity can be beneficial when faster heat-up, cooler-weather performance or an extended swimming season is required. Excessive oversizing is not always necessary, so the heat pump should be selected according to the pool's actual heating requirements.

How long does a pool heat pump take to heat a swimming pool?

Pool heating time depends on pool volume, starting water temperature, target temperature, ambient air temperature, weather conditions, pool cover use and heat pump output. Larger heat pumps can generally raise the water temperature faster, while colder conditions and uncovered pools increase heating time.

Does a pool cover make a difference when heating a pool?

Yes. A pool cover can significantly reduce heat loss from the water, particularly overnight and during windy conditions. Using a cover can help the pool reach its target temperature faster, reduce heat pump operating time and improve overall heating efficiency.

What size heat pump do I need for year-round pool heating?

Year-round pool heating usually requires greater heating capacity than summer-only or extended-season swimming. The heat pump must be capable of maintaining the desired water temperature during the coldest conditions in which the pool will be used. Select year-round swimming in the calculator above to estimate the appropriate capacity.

What size heat pump do I need for an extended swimming season?

Extended-season heating means keeping the pool comfortable through cooler spring and autumn conditions. This generally requires more heating capacity than summer-only heating. Pool volume, location, target water temperature and pool cover use should all be included when calculating the required heat pump size.

What temperature should I set my pool heat pump to?

The ideal swimming pool temperature depends on personal preference and how the pool is used. Many residential pools are heated to approximately 26°C to 30°C. Selecting a higher target temperature increases the amount of energy required and may affect the recommended heat pump size.

How does ambient temperature affect a pool heat pump?

Pool heat pumps transfer heat from the surrounding air into the pool water. As air temperature falls, available heat and heating performance can change. This is why local climate and the time of year you intend to swim are important considerations when selecting a pool heat pump.

Which pool heat pump is recommended after I calculate the size?

Once the required heating capacity has been calculated, you can compare suitable Orilux pool heat pumps within the recommended kW range. The best model will depend on required heating capacity, efficiency, available electrical supply and your preferred swimming season.

Need Help Choosing the Right Model?

Avenza Pro can help connect you with an authorised Orilux dealer for personalised pool heat pump sizing advice.

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