Hot Water Heat Pumps
Family relaxing on floor at home

Make the switch to

Next Generation
Hot Water Heat Pumps

From hot water to underfloor heating, radiators to pools, our hot water heat pump solutions are custom-designed for your home.

SAVINGS UP TO 0% ON HEATING COSTS*1
High
Efficiency
FROM 0 dBA*3

One System, Multiple Applications

Flexible heating for every part of your home

Our air-to-water heat pumps provide flexible hydronic heating solutions for every part of your home — one integrated system, multiple applications.

MAKE THE SWITCH TODAY

Join the Hot Water
Heat Pump Revolution

From hot water to underfloor heating, radiators, fan coils to pool heating, our heat pump solutions are custom-designed for your home.

Designed for New Zealand conditions

Proven Performance in Real New Zealand Winters

Ecodan delivers reliable, efficient heating year-round — even during the coldest winter months.

  • Full rated capacity down to −15°C*5
  • Tested and proven in New Zealand’s harshest alpine environments Read more
  • Full capacity heating throughout the winter season
Modern townhouses with Ecodan outdoor units
41 dBA rating

Ideal for higher density housing

Ultra-Quiet
Operation

Keep your neighbours happy with whisper-quiet outdoor operation designed for modern high-density living.

  • Sound pressure as low as 41dBA*3
  • Greater placement flexibility near boundaries
  • Residential-friendly design features
  • Convenient location options without disturbance
Human
hearing
limits
Rustling
leaves
Library
interior
Passenger
car interior
Train
car interior
Only 41dBA*3
10dBA 40dBA 60dBA 80dBA

Upgrade existing underfloor or radiator systems

Replacing Expensive Gas or Diesel Boilers with a Hot Water Heat Pump has Never Been Easier!

An Ecodan Hot Water Heat Pump is a highly efficient, future-ready replacement for outdated gas, diesel, wood, or coal boilers. Designed to integrate seamlessly with existing hydronic radiators or underfloor heating systems, it delivers reliable, comfortable warmth while significantly reducing both energy bills and carbon emissions.

  • Delivers up to 5× more heat energy than the electricity it uses*2
  • Can cut heating costs by up to 70%*1 compared to a gas boiler
  • Reduces carbon emissions by moving away from fossil fuels

Suitable for both new builds and heating upgrades, Ecodan systems offer a smart pathway to modern, low-carbon living.

< Cat relaxing by radiator
COP efficiency diagram showing 1kW input, 2.2kW renewable energy, resulting in 3.2kW output

How Efficient is Ecodan?

Ecodan's Coefficient of Performance (COP) of 5.05*2 means for every 1.19kW of electricity input, you can get up to 6kW of heat output by absorbing free heat energy from the outdoor air.

COP Comparison Chart

Ecodan Electric Heating Gas Heating (Non-Condensing)*6
0.80
1.0
5.05
Gas Heating
(Non-Condensing)
Electric
Heating
Ecodan
New Zealand braided river landscape with mountains

Better for the Environment

Since 1994 Mitsubishi Electric have utilised their heat pump technology leadership and expertise to specifically design and manufacture hot water heat pump solutions. The range is called Ecodan and is now well and truly established globally as the preferred way to heat water efficiently with minimal environmental impact.

  • Traditional electric systems produce up to 3x more greenhouse gas*7
  • Instant gas systems produce 7x more emissions*7
  • EECA identifies heat pumps as key to reducing home emissions

New build, renovate or retrofit

Add Value to Your Home with an Ecodan Hot Water Heat Pump

Upgrading to an Ecodan system is an investment that delivers immediate power savings and increases property value for future buyers.

  • Immediate saving on your power bill
  • Increased home value
  • Energy efficiency advantage

Whether building new, renovating, or retrofitting, Ecodan provides the perfect solution for super energy-efficient water and space heating.

House shaped radiator icon

From Consultation to Comfort

Every system is fully engineered for your home. Here's how we make it effortless from start to finish.

Request a free consultation →
01

Consultation

Tell us about your home and heating needs. Our experts will listen and understand your requirements.

02

Tailored Design Support

Our nationwide network of partners can engineer a complete system tailored to your home's size, layout, and your comfort preferences.

03

Professional Install

Our network of trained installers handle everything, ensuring your system is set up perfectly.

04

Enjoy Comfort

Experience year-round comfort with efficient heating, hot water, and ongoing support.

Want to know more?

Our network of dealers ensures you receive expert advice,
professional installation, and ongoing support.

Trained Installers

Mitsubishi Electric trained installers and Service Centres

Nationwide Coverage

Dealers across New Zealand

Professional Installation

Qualified technicians

  1. Energy cost savings are in comparison to traditional heating such as gas and direct electric systems. Operational costs can vary depending on design, installation, operational settings and ambient temperatures.
  2. Based on PUZ-SHW80VAA model under nominal heating conditions at outdoor temp: 7°CDB / 6°CWB, outlet water temp 35°C, inlet water temp 30°C as tested to EN14511.
  3. Measured at 1m from the front of the outdoor unit, tested to EN12102.
  4. Up to 80% annualised energy savings for domestic hot water. Operational costs can vary depending on design, installation, operational settings and ambient temperatures.
  5. PUZ-SHWM100VAA at 50°C flow temperature.
  6. Based on manufacturer information for gas instant hot water heater (non-condensing). Electric element heating assumed 1 to 1 efficiency.
  7. Based on electrical and gas emission factor for New Zealand (EECA Genless). E3 Policy Framework data for New Zealand.