Oasis iX and C-Series Heat Pumps (Heat and Chill)

Oasis iX & C-Series Heat Pumps — Inverter Heating and Chilling for Aquaculture

The Oasis iX and C-Series are full-inverter heat pumps for water heating and chilling in aquaculture, aquaponics and commercial water-temperature control — from compact 9 kW iX units to 120 kW C-Series commercial systems. Every model uses a DC-inverter compressor that modulates output to match the actual heating or cooling load (rather than cycling on and off), a titanium heat exchanger rated for fresh, brackish and salt water, and low-GWP R32 refrigerant. All units both heat and chill.

Fresh by Design supplies and supports the Oasis range across Australia and New Zealand. We size each unit to your water volume, target temperature, ambient conditions and power supply — talk to us before settling on a model.

Key Features

Full DC-inverter compressor — output follows the load instead of cycling on/off, around 30% more efficient than standard on/off units and holds water temperature stable
Titanium heat exchanger — fresh, brackish or salt water
Heats and chills, with automatic reverse-cycle defrost that keeps the unit running in ambient temperatures below 0 °C
R32 refrigerant (low global warming potential)
Gold-fin hydrophilic-coated condenser coils — corrosion resistance and efficient heat transfer
3.5″ LCD touch controller, fully programmable with multi-period tariff/time scheduling
Wi-Fi as standard and solar PV-ready (iX Series)
Powder-coated steel cabinet, internal flow switches and built-in drains
Suitable for single or multiple-unit commercial installations
Australian-backed brand (Sunlover Heating) with national, in-house after-sales support

iX or C-Series — which do I need?

It comes down to capacity and power supply. The iX Series (9–28 kW) suits tanks, ponds and small-to-mid aquaculture and aquaponics systems, runs on single phase up to 28 kW (three phase on the iX28T), and uses 40 mm water connections. The C-Series (38–120 kW) is a three-phase commercial range for large RAS, hatcheries and facilities with high continuous heating or chilling demand, with 50–110 mm connections.

Series	Heating	Cooling	Power supply	Water connection	Typical use
Oasis iX	9.4–28.9 kW	3.2–14.5 kW	Single phase (3-phase iX28T)	40 mm	Tanks, ponds, small–mid RAS, aquaponics
Oasis C-Series	38–120 kW	24–94 kW	Three phase 400 V	50–110 mm	Large RAS, hatcheries, high-demand commercial

Oasis iX Series — Inverter (9–28 kW)

Model	Heating Capacity	Cooling Capacity	Flow Rate (LPM)	Connection	Power Supply
iX9	9.4 kW	3.2 kW	42	40 mm	Single Phase (10 A plug)
iX13	12.8 kW	3.6 kW	58	40 mm	Single Phase (15 A plug)
iX19	18.9 kW	7.7 kW	70	40 mm	Single Phase (15 A plug)
iX24	24.6 kW	12.3 kW	110	40 mm	Single Phase (15 A plug)
iX28	28.0 kW	10.4 kW	125	40 mm	Single Phase (15 A plug)
iX28T	28.9 kW	14.5 kW	135	40 mm	Three Phase (hardwired)

Oasis C-Series — Commercial Inverter (38–120 kW)

Model	Heating Capacity	Cooling Capacity	Flow Rate (LPM)	Connection	Power Supply
C38T	38 kW	24 kW	200	50 mm	Three Phase 400 V
C47T	47 kW	33.5 kW	250	50 mm	Three Phase 400 V
C58T	58 kW	45 kW	333	50 mm	Three Phase 400 V
C95	95 kW	70 kW	467	110 mm	Three Phase 400 V
C120	120 kW	94 kW	585	110 mm	Three Phase 400 V

iX heating rated at 27 °C air / 26 °C water; iX cooling at 35 °C air / 29 °C water. C-Series rated at 19 °C air / 26 °C water (heating and cooling). Capacity and COP vary with ambient temperature — full performance data is in the spec sheets under Downloads.

What size heat pump do I need?

Sizing depends on your water volume, your target temperature versus your coldest (or hottest) ambient, whether tanks are indoors or covered, and your flow rate and power supply. A unit that is marginal at winter ambient will run flat out and still fall short — and chilling capacity is lower than heating capacity on the same unit, so chill-driven systems are sized differently. Send us your volume, target temperature and location and we’ll match a model: call 02 4868 2500 or email sales@freshbydesign.com.au.

Applications

Suitable for fresh water, seawater and brackish systems: RAS, aquaponics, hatcheries, broodstock conditioning, live holding and purging, research aquariums, and commercial pools. Pairs with our titanium plate heat exchangers where indirect heating is required. Browse the full Heating & Cooling range for related equipment.

Downloads

Frequently Asked Questions

Can Oasis heat pumps run on salt water?	Yes — the titanium heat exchanger and coated coils suit fresh, brackish and seawater systems.
Do they heat and chill?	Yes, every model is reverse-cycle — heating and chilling from the one unit.
iX or C-Series?	iX for tanks, ponds and small-to-mid systems (to ~28 kW); C-Series for large RAS and hatcheries (38–120 kW, three phase).
Single or three phase?	iX 9–28 run on single phase; the iX28T and all C-Series models are three phase.
Will they work on cold mornings?	Yes — automatic reverse-cycle defrost keeps them running in ambient temperatures below 0 °C.
What about support and spares?	Oasis is an Australian-backed brand with national in-house after-sales support — talk to us.

Oasis iX and C-Series Heat Pumps (Heat and Chill)