CO2 Heat Pump with WiFi Controller + 300L Custom CE Duplex SS Cylinder
Reclaim Energy


- 5.0
- COP
- 300 L
- Tank
- 7.8c
- Running Cost/kWh
- 37 dB(A)
- Noise
- CO₂ (R744)
- Refrigerant
- —
- Installed from
Who is it a good fit for?
- Retrofit buyers with a serviceable cylinder — the unit-only option connects to almost any existing hot water cylinder.
- Solar PV homes — Solar Boost mode absorbs excess generation before it exports to the grid.
- Cold climate homes — CO₂ technology operates efficiently down to −10°C without a backup element.
- Large households — the 400L GL cylinder option suits families of 5 or more, with 700+ litres of hot water per day capacity.
- Eco-conscious buyers — CO₂ refrigerant has a GWP of 1, the lowest of any heat pump on the market.
What owners say

“It's basically halved our hot water power usage! The noise is waaay less than I expected. It's been EPIC. We were recommended Mainly Gas & Plumbing - they were an incredibly lovely team and we loved the more sustainable CO2.”
Review
Performance & efficiency:
Reclaim’s CO₂ split system is one of the most capable heat pump hot water systems available in New Zealand. The CO₂ refrigerant (R744, GWP of 1) combined with a Japanese Chofu compressor and Australian-made controller makes this a genuinely premium eco choice.
A COP of 5.0 at 20°C ambient, efficient operation down to −10°C, and a 90°C maximum water temperature put it ahead of most competitors on raw performance.
Features:
- The split system design: is a key practical advantage: the outdoor compressor connects to almost any hot water cylinder, indoor or outdoor. That makes it an excellent retrofit option — you may be able to keep your existing cylinder and just add the heat pump unit.
- Consolidated Energy offer the unit standalone or paired with 315L or 400L glass-lined cylinders, or a 300L custom duplex stainless steel cylinder with 3 kW backup element.
- Solar PV integration is strong: the smart controller supports Solar Boost mode and off-peak scheduling, effectively using the system as a 3–4 kWh thermal battery for your solar generation.
- Warranty is 10 years parts and labour: on the heat pump and controller — among the best in the market. Tank warranty varies by cylinder type: 10 years parts / 5 years labour on GL tanks; 15 years parts / 5 years labour on stainless steel.
Supply and service network:
Specs
CO2 Heat Pump with WiFi Controller + 300L Custom CE Duplex SS CylinderCost & efficiency
- Typical installed price
- —
- COP (rated)
- 5.0
- Test conditions
- Ambient 20°C / inlet 15°C
- Test standard
- Not provided
- Eff. cost/kWh
- 7.8c
- Input power
- —
- Heating capacity
- —
- Household size
- 5+ people
Hot water performance
- Tank size
- 300 L
- Max temperature
- 90 °C
- Hot water output
- Over 700L/day
- Recovery rate
- Not provided
- Max water pressure
- —
- Tank material
- Stainless steel duplex (CE custom)
- Tank insulation
- Not provided
- Backup element
- 3kW element (included in tank)
Installation & dimensions
- System type
- Split unit
- Indoor / outdoor
- Split — outdoor compressor + indoor or outdoor tank
- Min clearance / space
- See installation manual
- Min space required
- See installation manual
- Dimensions (H×W×D mm)
- —
- Unit weight (empty)
- —
Climate & environment
- Refrigerant
- CO₂ (R744) (GWP 1)
- Operating range
- -10 °C to 43 °C
- Noise
- 37 dB(A)
- Heating capacity
- —
Controls & features
- Display type
- —
- Control modes
- Solar Boost, Timer, Off-Peak, Manual, Auto
- Smart / Wi-Fi
- Yes
- Solar PV ready
- Yes
Warranty & support
- Tank warranty
- 15 years parts (SS tank), 5 years labour
- Parts & labour warranty
- 10 years parts & labour
- Installer restriction
- Any licensed plumber
- Supplier / brand
- Reclaim Energy