Goes Electric

AquaCore Hot Water Heat Pump

Black Diamond Technologies (Mitsubishi Electric)

AquaCore Hot Water Heat Pump
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 Pump

Cost & 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)

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