AquaCore Hot Water Heat Pump
Black Diamond Technologies (Mitsubishi Electric)

- 3.6
- COP
- 0 L
- Tank
- 10.8c
- Running Cost/kWh
- 49 dB(A)
- Noise
- R32
- Refrigerant
- —
- Installed from
Who is it a good fit for?
- Homes wanting to retrofit an existing cylinder — works with any standard NZ cylinder without full replacement.
- Very cold climate homes — −15°C is the lowest minimum ambient in the NZ market.
- Those who value Mitsubishi Electric engineering — proven reliability and build quality.
- Space-constrained installations — indoor AquaCore unit is just 460×240×460mm.
- Buyers wanting proven NZ track record — over 10 years in the New Zealand market.
Review
Performance & efficiency:
The COP figures are refreshingly honest — Mitsubishi publishes performance at 19°C (COP 3.6), 7°C (COP 3.0), and 1°C (COP 2.4), giving buyers realistic expectations across seasons. The −15°C to 46°C operating range is the widest of any hot water heat pump in the NZ market.
Features:
- Refrigerant loop: This split system allows for an outdoor compressor with and indoor unit and tank. It operates by circulating refrigerant rather than water, meaning a certified installer is required. The dual refrigerant system (R32 outdoor, R134a indoor) adds complexity but enables the wide operating range. The trade-off is a lower COP than dedicated integrated units, and higher combined GWP from the dual refrigerant approach.
- The indoor AquaCore unit: is compact (460×240×460mm) — about the size of a large microwave.
Supply & Service Network:
The AquaCore represents Mitsubishi Electric engineering distributed through Black Diamond Technologies (BDT), with a NZ-made indoor unit and over 10 years of track record in New Zealand. BDT have a network of accredited installers and service providers throughout New Zealand.
Specs
AquaCore Hot Water Heat PumpCost & efficiency
- Typical installed price
- —
- COP (rated)
- 3.6
- Test conditions
- 19°C ambient, 14°C water in. COP 3.0 at 7°C, COP 2.4 at 1°C.
- Test standard
- AS/NZS 5125
- Eff. cost/kWh
- 10.8c
- Input power
- 1 kW
- Heating capacity
- 3.2 kW
- Household size
- —
Hot water performance
- Tank size
- 0 L
- Max temperature
- 55 °C
- Hot water output
- Depends on cylinder capacity
- Recovery rate
- 180L reheated in 2.5 hours
- Max water pressure
- 500
- Tank material
- Depends on cylinder (retrofit-compatible)
- Tank insulation
- Not provided
- Backup element
- Uses existing cylinder element (retrofit)
Installation & dimensions
- System type
- Split unit
- Indoor / outdoor
- Split — outdoor unit + indoor AquaCore unit + third-party cylinder
- Min clearance / space
- See installation manual
- Min space required
- Indoor AquaCore: 460×240×460mm
- Dimensions (H×W×D mm)
- Outdoor: 800×285×550mm / Indoor AquaCore: 460×240×460mm
- Unit weight (empty)
- 123 kg
Climate & environment
- Refrigerant
- R32 (GWP 1430)
- Operating range
- -15 °C to 46 °C
- Noise
- 49 dB(A)
- Heating capacity
- 3.2 kW
Controls & features
- Display type
- Simple 4-button control panel
- Control modes
- Eco, Standard, Disinfect + 7 on/off timers
- Smart / Wi-Fi
- Yes
- Solar PV ready
- Yes
Warranty & support
- Tank warranty
- N/A — uses existing or third-party cylinder
- Parts & labour warranty
- 5 years parts & labour (Ecodan standard warranty via BDT)
- Installer restriction
- Any licensed plumber (Ecodan warranty via BDT)
- Supplier / brand
- Black Diamond Technologies (Mitsubishi Electric)