Introducing the HydraHeat® Split Hot Water Heat Pump – a versatile solution compatible with both new and existing* cylinders.
Combining Rinnai’s expertise in water heating and heat pump technology, the HydraHeat® Split Hot Water Heat Pump offers a highly efficient way to heat your water. Its split design allows flexible installation while maximising performance.
The Rinnai HydraHeat® Split Hot Water Heat Pump utilises thermal stratification within the storage cylinder to ensure rapid hot water delivery from the moment it starts, offering an efficient and practical water heating solution.
Upgrade Your Cylinder for a Greener Future
Easily retrofit your existing hot water cylinder* into a sustainable, energy-efficient system—no full replacement needed, reducing costs and waste.
Up to 75% Energy Savings**
Advanced heat pump technology cuts energy use dramatically, delivering long-term savings.
Low GWP, High Efficiency
Using R290, a natural, non-toxic refrigerant with an ultra-low global warming potential compared to traditional options like R32, you can reduce your environmental impact while improving your home’s energy efficiency.
Proudly designed and built in New Zealand, the HydraHeat® Split is engineered to withstand Kiwi conditions and ensures a straightforward installation for any type of home environment.
Discover the future of hot water today. Visit rinnai.co.nz to learn more.
*Please refer to our cylinder compatibility checklist to find out if your cylinder is compatible with the HydraHeat® Split system.
**When a comparison calculation is made to a 250L standard electric hot water cylinder when heating water from 19°C to 55 °C.