Hot Water Heat Pumps in Tauranga
Cut your hot water power bills by up to 70% with an energy-efficient Gree WHIO hot water heat pump, supplied and installed by Powered across the Bay of Plenty.
Your hot water cylinder is one of the biggest energy users in the home. A hot water heat pump works like a reverse fridge, it pulls free heat out of the surrounding air to warm your water, using a fraction of the electricity of a traditional element cylinder.
Powered supplies and installs the high-efficiency Gree WHIO inverter range for renovations, architectural new builds and straight retrofits right across Tauranga, Mount Maunganui, Pāpamoa and Ōmokoroa.
Why Choose a Hot Water Heat Pump
Switching to a Gree WHIO hot water heat pump is one of the simplest ways to lower your power bill while future-proofing your home. Here’s why our customers make the switch:
Up to 70% lower hot water running costs compared with a traditional electric element cylinder.
Frees up indoor space — the all-in-one unit sits outside, so you reclaim the hallway or laundry cupboard your old cylinder used to take up.
Eco-friendly R290 natural refrigerant with a very low global-warming potential.
Wi-Fi and app control — monitor water temperature, track energy use and schedule heating from your phone.
Built for Bay of Plenty conditions — draws heat from the surrounding air and keeps performing through cool coastal winter nights.
Ideal for renovations and new builds — easy to integrate with solar and to plan into a new electrical layout from the ground up.
How it Works
A fan draws in ambient air and passes it over a refrigerant coil. The captured heat is compressed and transferred to the water in the tank, heating it efficiently without relying on a power-hungry element. Because the system moves existing heat rather than generating it from scratch, every unit of electricity it draws delivers several units of heat back into your water.
Technical Specifications
Gree WHIO TD200
Official model number: GRS-2.3Pd/TD200ANpH-K
Ideal household size: 3 to 4 people
Cooling: 206 litres
Thermal heating power: 2,300 W output
Electrical power input: Only 426 W
Coefficient of Performance (COP): 5.41 W/W (at 20°C ambient)
Refrigerant: Eco-friendly R290 (GWP 3)
7-year parts & labour
Gree WHIO TD270
Official model number: GRS-2.3Pd/TD270ANpH-K
Ideal household size: 4 to 5 people
Cooling: 270 litres
Thermal heating power: 2,300 W output
Electrical power input: Only 426 W
Coefficient of Performance (COP): 5.41 W/W (at 20°C ambient)
Refrigerant: Eco-friendly R290 (GWP 3)
7-year parts & labour
Case study
A Tauranga family home upgraded to the Gree WHIO 270L
The problem
A family of five was facing soaring monthly power bills, driven largely by an ageing internal 180L electric element cylinder that was struggling to keep up with daily demand.
The solution
Powered decommissioned the internal cylinder — freeing up valuable storage space in the home’s hallway cupboard — and supplied and installed an all-in-one Gree WHIO 270L outdoor hot water heat pump. The unit was set on a level concrete pad with localised acoustic dampening and wired into the home’s smart meter.
A standout feature is the system’s built-in Wi-Fi. By linking the Gree WHIO to the Smart Life app, the homeowner gained complete remote control of their hot water from anywhere — monitoring real-time water temperatures, tracking energy use and adjusting modes from the couch. The app also enables scheduling, so heating cycles can be aligned with solar generation or cheaper off-peak power for even greater savings.
The results
- Hot water electricity use dropped by around 70% within the first 60 days.
- Consistent real-world COP of 5.41, drawing ambient heat from the coastal air even on cold Bay of Plenty winter nights.
- Gained roughly 1.2 m² of internal storage space by moving hot water storage outdoors.
Frequently Asked Questions
The Gree WHIO series uses an advanced permanent-magnet inverter compressor designed for R290 eco-friendly natural refrigerant, paired with an external heat exchanger and a titanium-enamel tank. This lets the system heat household water up to 70°C through the heat-pump cycle, so it doesn’t rely on an inefficient backup element during normal operation.
Very efficient — they deliver up to 70% energy savings compared with a traditional electric element cylinder. With a high Coefficient of Performance (COP of 5.41), the system produces 2,300W of thermal heating power while drawing only 426W of electricity from the mains.
Yes. The Gree WHIO connects to the Smart Life app over Wi-Fi, so you can monitor water temperature, track energy use, switch operating modes and schedule heating cycles remotely. Many customers schedule heating to line up with their solar generation or off-peak power for extra savings.
Yes. The system draws heat from the surrounding air and is designed to keep performing efficiently through cool coastal winter nights.
As a guide, the 206L TD200 suits households of 3–4 people and the 270L TD270 suits 4–5 people. We’ll confirm the right size for your hot water demand when we quote.
local electricians
Ready to cut your hot water power bills?
Powered supplies and installs Gree WHIO hot water heat pumps across
Tauranga, Mount Maunganui, Pāpamoa and Ōmokoroa.