Thermann X Split Heat Pump Kit THP45x315

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Thermann X Split Heat Pump Kit THP45x315


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Thermann X Split Heat Pump

The Thermann X Split Heat Pump combines Japanese and Australian engineering for an efficient, quiet, and versatile hot water solution. It extracts heat from the air using a natural refrigerant, making it up to 80% more efficient than standard electric storage systems.

Key Features:

  • High Efficiency: Significantly reduces energy costs and environmental impact.
  • Flexible Installation: Ideal for space-limited areas.
  • Quiet Operation: Operates quietly at 37dB.
  • Fast Recovery: Ensures continuous hot water availability.
  • Government Rebates: Eligible for STC government rebates.
  • Block Out Mode: Suited for on/off-peak tariffs and PV solar optimization.
  • Ozone-Friendly: Uses a natural, eco-friendly refrigerant.
  • Mains Pressure: Provides consistent, mains-pressure hot water.

How it Works:

  • Cold water is drawn into the heat pump unit.
  • A fan transfers heat from the air to a natural refrigerant.
  • The heated gas is compressed, raising temperature and pressure.
  • The hot gas heats cold water in a heat exchanger, ready for use.


  • Size and Dimensions:
  • Outdoor Unit: 675 x 356 x 899 mm (HxWxL)
  • Outdoor Unit Weight: 48 kg
  • Tank: 613 mm diameter, 1763 mm height, 92 kg (dry)
  • Inclusions:
  • Thermann X Split Heat Pump
  • Thermann Solar Gas / HP Tank G/L 315l
  • Built-in "Block-Out" function
  • Display panel and LED error screen
  • Usage:
  • Ideal for 1 to 3 bathrooms and 4 to 6 people.
  • Installation requirements: External installation for the heat pump, internal/external for the tank, 15m horizontal, 5m vertical distance.
  • Model Number: THP45
  • Technical Details:
  • Material: Vitreous Enamel
  • Refrigerant Type: R744 (CO2)
  • Tank Capacity: 321 liters
  • Heating Capacity: 4.5 kW
  • Seasonal Coefficient Of Performance (COP): 5.08
  • Maximum Operating Pressure: 850 kPa
  • Operating Temperature Range: -10 to 43°C
  • Maximum Operating Current: 10 A
  • Power Supply: 230-240V

Warranty Information

Tank Warranty: 5 Years 

Parts and Labour: 12 Months 

**Warranty Conditions apply

‍Delivery Information

All Hot Water Systems have Nationwide delivery and in the majority of cases shipping is free!

Please note that all sales need to be within a 50km radius of a town with a population over 30,000. If you are not within this area please phone for availability.

Special Note

Prices listed next to each heater* are for supply and install in the Brisbane, gold coast and Ipswich areas only. Supply & Install prices are for like for like installations. Tempering valve if required is an additional $185.00
Phone us now on 07 3733 3622 to get your new Rheem hot water system.

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