FAQ



What is an "Inverter"? Is it a heat pump?

An Inverter is a piece of technology that makes newer heat pumps more efficient. Older style heat pumps operate a fixed speed compressor motor. These motors are either on or off, so they stop and start repetitively to keep the temperature at the level you set it – similar to a fan heater set on a thermostat. Newer, inverter style heat pumps use a variable-speed compressor motor that slows down and speeds up as required to maintain a more consistent temperature. This makes them more energy efficient. In fact, Panasonic Inverter heat pumps are extremely efficient, meeting or exceeding the most stringent Energy Efficiency Ratings.



Do heat pumps just “heat”? Are they air conditioners as well?

Heat pumps are Air Conditioners that literally "pump heat". That means they can pump heat from outside into your home to warm you in winter; and vice-versa – pumping heat out of your home in summer.

As soon as an inverter air conditioner is switched on, it provides the exact amount of power needed to rapidly cool or heat of the room. This enables it to reach the set temperature in about a quarter the time required by non-inverter models. So you’re comfortable soon after you arrive home on a hot summer day, or after entering a room on a cold winter morning.



Why are there so many options, and how do I know what size heat pump to buy?

Every home is different. The outside air temperature, the size of the room you want to heat, the number of windows, amount of insulation… it all affects the power requirements of your new Heat Pump. It’s important to choose one that suits the size of the space you want to heat; if the Heat Pump is too small or too large, it will use more energy, cost more to meet your heating requirements and may not perform to the level required. Use our wizard to get an idea of which Panasonic Heat Pump might suit your needs, or arrange for a free consultation to get a more accurate picture.



Will my heat pump still work if it’s below freezing outside?

Even when it gets down below zero degrees, there is still “warmth” in the air that can be utilized. In New Zealand a good quality Heat Pump should perform effectively when the temperature drops below zero degrees Celsius, provided it is sized and installed correctly. In colder climates the outside unit may frost over during the coldest part of the year, this is normal operation and your Panasonic Heat Pump will automatically stop and carry out a de-frost cycle before returning to its normal operation. All Panasonic Heat Pumps operate below zero degrees, with some units operating right down to -20ºC. Contact a Panasonic Heat Pump dealer for more information on the right model for your application.



What is the difference between a Single-Split and a Multi-Split Heat Pump?

A single-split Heat Pump consists of a single internal "fan" unit matched to a single external “condenser” unit, designed to heat the room it is sized for and installed into. Although some heat may flow into other areas, It is unlikely to effectively heat your whole house. If you want to heat other areas of the house you may be better to consider a multi-split system, where a single outdoor unit powers up to four indoor units. This kind of setup can save space and power and cuts down on potential noise, but requires careful selection and installation. A Panasonic Heat Pump dealer can advise you on this.



I’ve heard Heat Pumps can be very expensive to operate.

A quality heat pump can provide many times the amount of heat for the same price as running a conventional heater. Panasonic Heat Pumps are highly efficient in the first place, and include a whole range of features designed to maximize that efficiency. Working with a Panasonic Heat Pumps dealer to choose the right sized unit to start with, then operating it smartly should use the minimum possible amount of electricity to effectively heat or cool your home. And tests have showed that choosing an ENERGY STAR certified Panasonic Heat Pump could save you $150 on your annual power bill over a less efficient model. However, any appliance will use more electricity if used incorrectly. Here are some tips on smart Heat Pump usage: - Learn to use the timer. Set the timer so the Heat Pump comes on an hour or so before you get home or get up in the morning.



  • Some installers suggest leaving the Heat Pump on 24/7, but this is only ideal in certain circumstances: When it is extremely cold outside, it can sometimes take more energy to warm the house up when you want it, than to keep your home constantly warm when there’s nobody there. Talk to us about the right usage pattern for your needs.
  • Don’t set the temperature higher than you need it. 18-22ºC is recommended as a comfortable working temperature, and if required, 16ºC overnight.
  • Shut doors, windows and curtains to keep the heat in.
  • Keep the interior and exterior units well maintained as per the manufacturer’s instructions, including ensuring the filters are cleaned regularly. - Using a heat pump as an air-conditioner in summer instead of opening the windows and doors will increase your power bill, but using an Energy Star rated Panasonic Heat Pump/Air Conditioner will help minimize this cost. You could also create a cross-draft by leaving windows open on opposite sides of the house if it is safe to do so. You can also close blinds or curtains to keep the sun out in the heat of the day. If you use the heat pump to cool the space, close windows and doors – otherwise the heat pump will have to work harder to keep the temperature down and end up costing you more to run.


Aren’t Heat Pumps noisy?

Panasonic Heat Pumps feature extra-quiet operation for your comfort – and the comfort of your neighbours, too. Certain models also feature Quiet Mode, which further reduces indoor unit noise to as quiet as 22dB(A) for a comfortable night’s sleep (the sound of leaves gently rustling in a tree is about 20dB(A)) – and reduces outdoor unit noise to as low as 42dB(A) (almost as quiet as a library, at 40dB(A)).



What is ENERGY STAR?

EECA (New Zealand’s Energy Efficiency and Conservation Authority) promotes the blue ENERGY STAR® mark, which is applied to certain Heat Pumps to tell you which are the most energy efficient models in each range. By choosing an ENERGY STAR® qualified unit, you will be assured of the very best efficiency and maximum savings on your heating costs. Choosing an ENERGY STAR® heat pump can save you $150 on your power bill over a less efficient model.