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Top Discharge or Side Discharge: Which Suits Your Space?
AstralPool heat pumps come in side-discharge and top-discharge designs, and the right one depends on where the unit will sit. Side-discharge models, such as the EcoLite models feature a front-discharge design while Pinnacle models use a side-discharge design, requiring clear space accordingly.
Top-discharge models, such as the iHPT range, send air upward, which suits tighter spots where the heat pump sits close to a wall, fence or in a narrow side passage. If space around your equipment area is limited, a top-discharge model is often the easier fit.
Why Choose an Astral Pool Inverter Heat Pump?
AstralPool inverter heat pumps are built around energy efficiency and quiet running. Inverter technology adjusts the compressor and fan to match demand, which lifts efficiency and reduces energy use across a season, and AstralPool rates its heat pumps to collect up to 13 kW of heat from the air for every 1 kW of electricity used.
To understand what this actually means for your running costs, see our guide to inverter pool heat pump technology . All the Astral Pool heat pumps use R32 refrigerant for efficient heating, and models with the control interface add on-unit temperature control, with app and WiFi control on selected models.
AstralPool heat pumps keep heating in cool conditions, which helps extend your swimming season into the shoulder months, including through a Melbourne autumn and spring when a non-inverter unit would struggle to keep up efficiently.
How to Match an AstralPool Heat Pump to Your Pool
The right AstralPool heat pump comes down to four things: your pool volume, your space, your power supply and the control you want.
Pool volume
Larger pools need a higher heat output, and the gap matters more than it might seem, an undersized unit will run constantly and never quite hold your target temperature, while an oversized one costs more than you need to spend.
Our team gives expert product advice to match the output to your pool, or see our pool heat pump expert guide to work through the method yourself first.
Your space
Choose a top-discharge iHPT model for tight equipment areas, since it sends air upward rather than outward, or a side-discharge Pinnacle or front discharge Ecolite model where there is clear space in front of the unit.
Getting this wrong does not stop the heat pump from working, but it can mean poor airflow, more noise bouncing back off a nearby wall, or a unit that is harder to service.
Power supply
Confirm whether your property runs single-phase or three-phase power before you choose a model, since not every AstralPool heat pump is available in both, and we will match a compatible option.
This is worth checking early, since a model chosen on size and space alone can turn out to need a supply upgrade you did not plan for.
Control
Choose a Pinnacle or iHPT model with the control interface if you want on-unit and app control over temperature and modes, or an EcoLite model for efficient heating at the value end without the extra interface.
Neither choice affects the core heating performance; it is purely about how much day-to-day control you want over the unit.
Buying an AstralPool Heat Pump and Local Support
We supply the genuine AstralPool range and back it with local support. AstralPool heat pumps are available in-store, so call (03) 8769 7321 for current pricing, and our price-match guarantee still applies.
Our Melbourne team gives expert product advice to match the right model to your pool, space and power supply, and we support your warranty claim directly, so you deal with a local team rather than chasing the manufacturer.
This local backup is one of the main reasons buyers choose to buy their AstralPool heat pump through us. Once you have chosen a model, our team can also talk you through expected running costs for your pool.
Need Help Choosing an AstralPool Heat Pump?
Call Spa & Pool Supplies on (03) 8769 7321 with your pool size, your equipment space and your power supply. We will recommend the right AstralPool range and model, confirm current pricing and availability, and explain running costs before you buy.
You can also browse the full pool heat pump range to compare AstralPool against our other brands.
Frequently Asked Questions
What is the difference between the AstralPool EcoLite, Pinnacle and iHPT ranges?
All three are inverter heat pumps. The EcoLite range is the value option for efficient everyday heating. The Pinnacle range is a side-discharge unit with a built-in control interface for full temperature control. All ranges use R32 refrigerant, which suits tighter equipment spaces. The right range depends on your pool size, your space and the control you want.
What is the difference between top discharge and side discharge?
Top-discharge heat pumps send air upward, which suits tight spots where the unit sits close to a wall or fence. Side-discharge heat pumps push air out the side, so they need clear space ahead of the unit. If your equipment area is tight, a top-discharge iHPT model is usually the easier fit.
Are AstralPool heat pumps inverter models?
Yes, the AstralPool EcoLite, Pinnacle and iHPT ranges all use inverter technology, which varies output to hold your set temperature efficiently rather than running at full power. This reduces energy use and keeps the unit running quietly, and AstralPool rates its heat pumps to collect up to 13 kW of heat for every 1 kW of electricity used.
What size AstralPool heat pump do I need?
The right heat output depends on your pool volume, your location and how warm you want the water, so larger pools need a higher kW model. The kW is shown in each model name, for example the iHP240 is 24 kW. Our team can match the right model to your pool if you need help deciding.
Why are AstralPool heat pumps available in-store only?
AstralPool heat pumps are sold in-store and by phone rather than online checkout, so each model shows "Available In-Store Only" with our phone number. Our price-match guarantee still applies to in-store purchases, and our team can arrange delivery and answer any warranty questions before you buy.
Do AstralPool heat pumps handle Melbourne's cooler climate well?
Yes. Inverter technology keeps working efficiently as air temperature drops, rather than losing performance the way older fixed-speed units can, so an AstralPool heat pump can extend your swim season through a Melbourne autumn and spring rather than just the peak summer months. Your climate and target temperature still affect which size model is right, so confirm this with our team.
How does AstralPool compare to the other brands you stock?
AstralPool sits alongside Madimack and Rheem Thermal in our range, and all three use inverter technology, so the choice usually comes down to your space, your budget and whether you want to buy online or in-store.