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General QuestionsHow a Heat Pump WorksHow to Choose a Heat PumpWhich Heat Pump Suits YouAdvantagesTerms & Conditions
What size heat pump will I need for my home?
Modern inverter Heat Pumps have a greater capacity for variations in temperature. That is because they can increase pr decrease their output, but obviously, there is a limit. It takes almost twice as much energy to heat a house from 2˚ – 20˚C as from 7˚ – 20˚C. Therefore; if you want to make sure you are going to get heating in all situations the Heat Pump needs to be sized correctly.
-Why is this so important? If the Heat Pump is incorrectly sized it will not work correctly to heat or cool your room and will cost you a lot more money than it should to run the appliance. Hence why it is so important to be sure your installer head selected a correctly sized unit.
How important is good installation?
Installation is critical. Sizing, positioning and installation are very important to good operation. The units require connecting piping plus professional wiring during installation. The piping can carry huge pressures and without all attributes of a skilled installer, there will be major problems later. Correct installation requires specialist tools with a combined worth of $5000. Fujitsu Accredited installers are your safeguard of sound, professional workmanship, and although they are not employees or agents, they have the tools and have contracted to follow the installation instructions.
Will a Heat Pump heat my entire house?
Heat Pumps are like powerful, yet efficient fan heaters. A typical Heat Pump provides the same amount of heat as having three fan heaters lined up together, but only costs around the same as running a single fan heater. So if you can heat your house today from one heating position then you can probably do so with a heat pump. However typically, Heat Pumps are sized and installed to heat a single room or open area. To heat your entire house you would most likely need several Heat Pumps or a ducted or multi system.
How 'environmentally safe' are Heat Pumps?
EECA (Energy Efficiency and Conservation Authority) recommend heat pumps for heating, because they use significantly less energy to heat your home than any other type of cheating. This reduces both pollution and the release of green house gasses. Check the model you are buying for its Energy Star rating.
How are Heat Pumps cheaper than heaters?
A heat pump simply “transfers” heat from the atmosphere outside, to inside your home. All other heaters use an element (electricity) or naked flame (gas, open fires) to “convert” energy to heat heat. The only energy a Heat Pump needs is the electricity to drive the fans and compressor. The result is up to 4 times less energy needed, saving your heating bill, and the environment too.
Do Heat Pumps need maintenance?
Like all things mechanical a Heat Pump which receives regular maintenance will perform better than a neglected one. That performance reduction is reflected in the cost to run and the output. the filter associated with the indoor unit should be cleaned to ensure a good airflow. We recommend cleaning the filters yourself at least twice per year. In addition the outdoor unit should be kept clear from greenery and the coil clean from blockage. Here at Heat Pump City, our service technicians are available between 8am-4pm, Monday-Friday and also 9am-12pm on Saturdays (excludes public holidays). Click here to book your service today.
How much will it cost to buy and install a Heat Pump?
The cost of a Heat Pump is different for each home and will depend on the size and type of Heat Pump, and how easy it is to install. A hi-wall Inverter single system, suitable for a small area or bedroom, starts at around $2,500 for a 3kW unit including installation. Larger capacity models – say between 5kW and 9kW cost between $3,200 and $4,800 including GST and installation. Some local governments are offering financial assistance if you are replacing an open fire or a solid fuel burner. Your Fujitsu Accredited Installer will advise if this is possible in your area.
How much does it cost to run a Heat Pump?
In response to our most commonly asked question, we have prepared our own Fujitsu Heat Pump comparison chart to compare Heat Pumps commonly installed by us. We have estimated the weekly and monthly cost of running a Heat Pump, and the Heat Pump efficiency. All of those Fujitsu Heat Pumps have been installed professionally throughout New Zealand by us at Heat Pump City.
Heat Pump running costs are based on running the unit 7hrs/day, auto fan and on 20-22˚C. These are geographic variables of course.
Can Heat Pumps help with condensation?
Yes they can. Condensation is caused by warm moist air cooling and condensing. There are two ways to stop “crying windows”. You can either remove the warm moist air (ventilation) or, you can stop it from cooling by heating it. The best option is to do both, but the problem is that in winter the fresh air (ventilation) can be very cold, and expensive to heat. Better to keep area warm.
Will a Heat Pump dehumidify?
Yes. They will dehumidify in cooling mode, in summer. They will not “decondensate” in heating mode (in winter). In winter, your Heat Pump will keep your room, or house, above the dew point so condensation does not form. However, in summer uncomfortable humidity occurs, at which point you change your Heat Pump to cooling.
Where do I place the inside unit?
Positioning is important. Heat Pumps are like big fan heaters and your installer should consider the airflow that will be created, along with the need to circulate the warm air. Consider the area that is to be heated so that air can circulate freely and not be short-circuited. For example, a unit blowing across a hallway will not be as effective as one blowing along the length of a hallway.
Where do I place the outside unit?
The copper used in the connecting pipes and wiring is very expensive and so the shortest distance is the cheapest, but might not be aesthetically pleasing. Discuss with your installer the best place and the cheapest places, and then decide. It is best to avoid positioning of the outdoor unit adjacent to your, or your neighbours bedroom.
How long does it take to install?
A Fujitsu Accredited Installer will usually take around 5 to 6 hours to install a straight forward (back-to-back) system. More complex installations including multi-systems and ducted systems can take longer.
How a Heat Pump Works

Heat Pumps simply transfer free heat (not air) from one place to another, just like your refrigerator does.  The heat that rises from the back of your fridge is coming from inside.  An evaporator coil extracts warmth from the air inside, and transfers it out into your kitchen through the condenser coil in the back.

Heat Pumps work in the same way.  Two coils, one inside your home, and one outside linked to draw warmth from the outside air (even on a cold Kiwi winter’s night) and transfer it into your home.

That’s a major advantage over electrics or gas heaters as heat pumps have no heating elements to burn energy.

Then, at the click of a switch your heat pump can run in reverse, acting as an air conditioner to pump heat out of your home reducing humidity and keeping it fresh and cool in summer.

Heating Mode

Cooling Mode

How a heat pump works in cooling mode

How to Choose a Heat Pump
It is important to get it right the first time

It isn’t difficult to choose the style you like, but it is very important that you choose the correctly sized heat pump for your needs.

That’s why Fujitsu have developed the Comfort Selector®. Using the Comfort Selector® is the most efficient way to make sure you have the perfectly sized heat pump for your home.  That’s the reason why only Fujitsu can guarantee the performance of the selected heat pump in your home.  In writing.

Choosing the right installer is very important.  Unfortunately, poor installation is not uncommon, and it can affect performance and efficiency of your heat pump.  So we strongly advise that you choose an accredited heat pump installer – that way you can be sure they have the skill, expertise and professionalism needed to give you years of efficient, worry-free heating.

1. Choose the type of heat pump for your needs
2. Decide which area of your home you want heated
3. Make sure you choose the right size heater
4. Request your free in-home or on-site consultation
5. Ask about our Comfort Selector™

Which Heat Pump Suits Your Needs

Heat Pump technology is so advanced these days, that choosing the best type to suit your needs can be confusing.  First of all, you need to consider how many rooms you want heated.  You can buy a single pump to heat a single area or room, a multi-system to heat 2, 3 or 4 areas, or a fully ducted system if you wish to heat your whole home.

Split Systems
All modern heat pumps are split systems.  That means they have an outdoor unit which contains the compressor, and an outdoor unit which contains the fan that circulates the warm air (or cooled air in the summer) in your home.  These units are designed to be discreet both in appearance and operation.

Secondly, you choose the type and model that suits you best.  Here are the options:


These are the most popular models.  These slim, elegant and whisper-quiet indoor units are mounted unobtrusively on a wall.  They all offer advanced technology, including remote control, reverse cycle, sleep and digital timer, moisture remover and some also offer additional features.  The Fujitsu Premier series offers whisper quiet comfort, advanced Fujitsu energy efficiency, elegant finish, apple catechin filter (to absorb dust, mould spores and harmful micro-organisms), ion deodorising filter to absorb household odours.


Unique to Fujitsu, the Nocria is a breakthrough in Heat Pump technology as well as being able to clean itself.  It sits just under the ceiling, offering superb efficiency and a brilliant UV filtration system that is recommended by Asthma New Zealand.  The filters not only filter out common allergens that can trigger allergies and asthma, but even drive away bacteria in the air.  These models are the ideal choice for high efficiency, high performance and maximum air quality.  Plus you’ll never have to clean the filters!

Floor Console

These floor standing models are very compact, with a range of capacities, offering quiet but very powerful operation.  These consoles look like a conventional gas or night storage heater.  The compact model is only 60cm high and 74cm wide.  They are also super quiet and surprisingly efficient, offering you the full range of capacities, with many additional features.

Ceiling Cassette

This is the go to unit if you want your heat pump to be discreet – as only the grill shows in the ceiling.


Just one outdoor unit can power up to four indoor units. The highly efficient, quiet way to heat or cool up to four different areas. The indoor unit selections include Hi-Wall, Console, Cassette or Bulkhead models to choose from, making it easier to heat or air condition most homes in New Zealand.

Ducted System

These are the ultimate home improvement. The luxury systems heat or cool your entire home. Air is distributed via insulated ducting connected to ceiling outlets. Ducting is the ultimate invisible solution for year-round comfort.


  • A heat pump is a heater, cooler, dehumidifier, an air filter and a circulating fan all in one.
  • Heat Pumps are easy to use and exceptionally convenient.
  • Cheaper heating/cooling and significantly improved air quality are the two key factors you should associate when thinking about a heat pump.
  • Heat Pumps are a year round, true value for money appliance. A heat pump provides home heating, cooling and/or dehumidifying, all in one unit.
  • Heat Pumps are the most efficient home heating solution and represent excellent value for money because your investment can be used 12 months of the year.
  • Aside from being very economical to run, they are also a highly efficient dehumidifier.
  • The inside unit also filters the air. This is an important feature for people who suffer from asthma and allergies. You will be amazed at how much dust is collected in your filters.
  • It can also be used as a circulating fan, filtering air and freshening a room at the same time.
  • Heat Pumps can quickly bring a room up to temperature and then maintain it.
  • It enables you to increase or decrease the temperature of your room, or switch from heating to coding at the push of a button on the remote control.
  • If you replace your electric heater with a 5 star heat pump and run it for the same period of time, your cost of heating would be approximately 75% less.
  • Safe, clean and comfortable heating.
  • With no flames or red hot heating elements there are no concerns about burns or fire.
  • They can be left on while you are out, or asleep.
  • Heat Pumps don’t create smoke, ashes or any waste material AND they do not burn oxygen.
Heat Pump City Terms & Conditions