phone-icon Call

Heat Pumps

Heat pumps are known to be one of the most efficient forms of residential heating available. In addition to this, they offer features that other forms of heating cannot, like dehumidifying, air filtration, safety and ease of use.

EnergySmart are Mitsubishi Electric Authorised and Hitachi Accredited installers of heat pumps in New Zealand. Contact us for your assessment today.

We realise it can be overwhelming to decide what you are looking for when purchasing heating for your home; so, you can rest assured that we can provide the right heating solution for your home – and budget.

 Mitsubishi Heat Pump Living Room

Why are heat pumps energy efficient?

The EECA (Energy Efficiency Conservation Authority) has identified heat pumps as one of the most energy efficient forms of heating available in New Zealand. This is because heat pumps do not create heat; they simply move available heat from one place to another. The little electrical energy that is needed is predominantly used to run the compressor.

When investing in a heat pump we consider its efficiency, in combination with other factors, when deciding which heat pump is right for you. The more efficient a heat pump is, the less it will cost you to run when producing the same amount of heating or cooling. Ultimately this effects your monthly electricity bill.

Our heat pumps offer the highest level of energy efficiency, with the ability to provide 3-4kW of heat energy for every 1kW used.


How does a heat pump work?

Heat pumps do not generate heat; they simply move available heat from one place to another. An outdoor unit absorbs warmth from the surrounding air and transfers it into your home. As outside temperature's drop, your heat pump must work harder to transfer the same amount of heat. When it's warm outside, it reverses direction and acts like an air conditioner, removing heat from your home.

Our standard heat pumps can operate in outside temperatures down to as low as -15 C which is essential for New Zealand high altitude or winter conditions. Some of our heat pumps can operate in outside temperatures down to -25 C. This should ensure you keep cosy and warm all winter, all while being the most efficient form of heating available.

Winter / Heating

In heating mode, the outdoor units heat exchanger is used to absorb heat energy from the surrounding outdoor air using refrigerant as the heat transfer medium.

how heatpump works winter heating

The hot refrigerant is pumped through copper pipes to the indoor unit’s heat exchanger and the heat energy is transferred to the cooler indoor room air as the air passes over the indoor heat exchanger warming the room.

The ability of a heat pump to work efficiently in low temperatures is not only important in areas where the temperature falls below zero degrees. Good low temperature performance is essential in all winter conditions.

Summer / Cooling

In cooling mode, the indoor units heat exchanger is used to absorb heat energy from the indoor room air using refrigerant as the heat transfer medium cooling the room air.

how heatpump works summer cooling

The refrigerant is then sucked back to the outdoor unit through copper pipes and the heat energy is rejected into the surrounding air outside via the outdoor unit’s heat exchanger.


What size heat pump do I need?

Choosing the right sized heat pump is key to ensuring optimum comfort levels. Every home is as individual as its owner in its requirements, choosing the wrong size can leave you cold and cost you more in power consumption. The key to selecting the right heat pump for heating your home is choosing the correct unit size for your location.

Our in-home consultation will identify your heat pump requirements. Book yours today!

Insulation and building orientation are important considerations for calculating heat loss in your home. An older style home with poor insulation will lose indoor heat much quicker than a modern well insulated home. The quicker a home loses its heat, the bigger the heat pump system needed to be to overcome this heat loss.

Outdoor ambient conditions in winter also play a big role in unit size selection. Areas of New Zealand that experience sub-zero temperatures in winter (like most of the South Island) will require either a larger capacity heat pump or an upgrade to a high-performance heat pump.


Heat Pump Installation

EnergySmart is a Mitsubishi Electric Authorised and Hitachi Accredited installer of heat pumps. Book your consultation today!

EnergySmart’s heat pump installation process is simple. Our team of assessors will review your home to identify the correct heat pump, sizing for your geographical location and space, and discuss your insulation requirements (to minimise heat loss).

Next, our experienced installation team will install your heat pump, ensuring optimal position for performance and convenience, educate you on correct operation and provide a warranty for the system installed.

Can I install a heat pump myself?

Installing a heat pump is a complex process and we do not recommend this as a Do-It-Yourself job.

New Zealand law requires the electrical side of any heat pump installation be done by a Licensed Electrician and given an Electrical Code of Compliance. Plus, the refrigeration part of your install requires technical care to ensure no contaminants are introduced into the system that can shorten the working life of an air conditioning unit.

All Mitsubishi Electric and Hitachi heat pumps must be installed by an authorised installer, such as EnergySmart, to qualify for warranty.


About Mitsubishi Electric

Staying at the forefront of technology is of utmost importance to Mitsubishi Electric. Their commitment to rigorous factory testing and continuous investment in R&D ensures products are of the highest quality and feature superior technology.

For New Zealand specifically, it has led to industry leading products being introduced that perform exceptionally well in our harsh and varied climate that we experience across the country throughout the seasons.


About Hitachi

Hitachi prides itself on providing high quality, efficient and reliable air conditioning solutions across the globe.

Hitachi modern air conditioning systems are compact, elegant, and unobtrusive. Each system comprises an indoor unit (wall mounted) and an outdoor unit (located near the house), sized to suit the area to be air conditioned.


EnergySmart are Mitsubishi Electric Authorised and Hitachi Accredited installers of heat pumps in New Zealand.

Book your assessment today!

We can help you find the right heating solution for your home. Contact us to book your free heat pump consultation today.