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Rinnai HydraHeat split system image outside a home with a bathroom window
HydraHeat
Hot Water Heat Pump

Reliable, energy-efficient hot water you can depend on

From $5,000*

*inc. GST

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Upgrade to a proven heat pump hot water system designed to reduce running costs and deliver consistent performance.

 

If your current hot water system is costing too much to run, HydraHeat® offers a straightforward upgrade.

Using proven heat pump technology, it delivers reliable hot water while using significantly less energy than traditional electric or gas systems.

 

A practical, cost-effective solution for everyday homes.

Why Choose HydraHeat®

Proven, reliable performance

Proven, reliable performance
A trusted system designed to deliver consistent hot water day after day.

Flexible system options

Available in both full integrated units and split system setups to suit different installation requirements.

Lower running costs

Uses less electricity than traditional systems—helping reduce power bills.

Simple, dependable setup

No unnecessary complexity—just a system that works.

Efficient operation

Heat pump technology transfers heat rather than generating it, improving efficiency.

Great value upgrade option

Ideal for homeowners wanting better efficiency without stepping into premium pricing.

HOW IT WORKS

HydraHeat® uses heat pump technology to absorb warmth from the surrounding air and transfer it into your water.

Because it moves heat instead of creating it directly, it uses far less electricity than standard electric cylinders.

Key Features 

Reliable everyday performance
Designed for consistent hot water supply across typical household use.

Energy-efficient heating
Reduces power consumption compared to traditional systems.

 

Suitable for a range of homes
Works across different household sizes and setups.

 

Straightforward operation
Simple, user-friendly system without complicated controls.

HydraHeat® Hot Water Heat Pump Range

Efficient water heating solutions developed using the latest in heat pump technology, to help Kiwi families save on energy. Better for you and the environment.

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Rinnai HydraHeat® Integrated

Built-in defrost and frost protection functions to handle colder climates.

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Rinnai HydraHeat® Split

Its split design allows flexible installation while maximising performance

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WHO IT’S BEST FOR

HydraHeat® is a great option if you:

  • Are replacing an older electric or gas hot water system

  • Want a reliable, no-fuss upgrade

  • Are focused on reducing running costs

  • Prefer a proven, straightforward solution

  • Want strong value without premium add-ons

 

Not sure which system is right?

Compare options >

INSTALLATION & FLEXIBILITY

HydraHeat® systems can be installed in a range of residential setups and are suitable for both replacements and new installations.

 

We’ll assess your current system and recommend the best configuration for your home.

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Rinnai HWHP Contact

Upgrade to a reliable, efficient hot water system

We’ll help you choose the right setup and show you what you could save.

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