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The Big Picture

Being energy efficient helps the environment plus can save you money! It's a win-win all round so why wouldn't you do what you can to be energy smart. There are more than a few things you can do to make a difference.


Being more energy efficient is a great step towards living more sustainably. Being aware of our energy and resource use is a simple way to help reduce our impact on the environment. From insulating, cutting out draughts and weatherproofing your home, through to minimising waste and recycling, there are a number of improvements we can help you with to make your home more efficient.


Heat your home          Prevent heat loss          Tapware          Energy efficiency          Lighting          



Modern wood fires can be a pretty cheap way to heat your home for years to come. They are essentially carbon neutral because there's no more CO2 from a wood fire than letting wood rot in the forest. With added benefits like stove top cooking and wetbacks to heat your home's water, the Mitre 10 range of wood fires also meet New Zealand's stringent quality control standards.


Wood fires          Heat pumps          Heat transfer          Wifi heating          Accessories          


Heater safety

Don't use power boards with heaters and turn all heaters off at the wall when not in use.


How can we prevent heat loss?

Most of the heat in your home is lost through the ceiling and floors. The best way to prevent heat loss is to insulate your home, and this will help reduce heating costs. Insulation traps heat in your house which means your heater doesn’t have to work as hard to warm the place up so it’ll use less energy. It also works in summer since insulation stops movement of heat, so when it’s hot outside, that’s where the heat stays.

Some other simple ways to prevent heat loss:

  • Ensure your curtains cover the window and there are no gaps
  • Make sure windows and doors are sealed properly


How to install ceiling insulation

30-35% of heat escapes through the roof so keep your home well insulated and the heating bills down with our Easy As insulation guide.

How to install wall insulation

18-25% of heat escapes through the walls, but putting in your own insulation is actually a pretty straight forward DIY project.

What's an R Value?

The R Value is the accepted measure of insulation performance. The higher the R-value the better the insulation properties.

Reducing waste

  • Recycled glass: Pink® Batts® insulation contains more than 80% recycled glass, material that might otherwise be destined for landfills.
  • Recycled packaging: As of early 2016 we have updated all plastic packaging so that all Pink® Batts® bags and over-sleeves are now 100% recyclable.
  • Water usage: We have reduced our average water intensity (the amount of water required to make Pink® Batts® products) by 45% from 2013.
  • Future product development: By redeveloping the size of our Pink® Batts® wall products, onsite cutting and wastage will be reduced.

Alternative forms of insulation include polystyrene.

Browse our range




- Draught seal your doors and windows to keep in the heat.
- Ensure all surfaces are clean and dry and if painted well cured.
- Store the seal at room temperature before applying it to the door or window frame.
- When dealing with gaps of various size you may need to use two seal thicknesses.


Unsure which tapware will work well in your home?

Simply identify your water pressure then look for tapware labelling at Mitre 10. These labels will help you decide which models from our extensive range are best for you.

Water pressure

Most hot water cylinders will say if they are mains or low pressure.

Failing that, there are a couple more indicators of low/unequal pressure:

  • Your shower temperature and/or pressure may change when someone uses a tap elsewhere in the house.
  • The cold tap will run faster than your hot tap.

What does this mean for your home?

If you have mains pressure, you can choose to be more water efficient by selecting a product with a higher star rating. If you have unequal or low pressure, you should look to maximise your hot water flow.

Water usage

There are lots of small things you can do around the house to conserve water:

  • Have a quick shower rather than a bath. Choosing one of the slide showers above can help too if you use the flow restrictor valve that comes included.
  • Use a bucket to clean the car rather than a running hose.
  • Collect rainwater to use on your garden or to wash your car. Your tank should be located near a downpipe, in a position that will collect water from the roof. Mitre 10 can help with water collection and treatment solutions.
  • Greywater is the wastewater from the bath, shower, bathroom sink and washing machine. In some areas, this water can be reused. Talk to your local council about this option.
  • Check for leaks! A dripping tap can waste up to 33 litres each day so if you have a leak, it may simply require a change of the washer or tap.



How to replace a tap washer

Many taps are still the old-fashioned type with a rubber washer that eventually wears out. Leaking taps should be dealt with quickly.


There's no doubt that household appliances make light work of those time-consuming chores and make life a whole lot more convenient. Imagine washing all your clothes by hand or having to store food in an icebox. While appliances make life easier, they do use power and water but don't have to eat it up. Check WELS and ENERGY STAR labels to select the most efficient fridges, freezers, dishwashers, clothes dryers and washing machines.

Be energy efficient with Whirlpool

Whirlpool, the world’s number one appliance brand, is available in at Mitre 10 and Mitre 10 MEGA stores nationwide. With cutting-edge design and utilising innovative technology, Whirlpool appliances will enhance your home, improve efficiency and make your life simpler.

Find out more


Energy efficient labels

The more stars the more efficient

Energy rating labels are a way to compare the energy efficiency or water consumption of similar appliance models.

Energy consumption measures the annual energy consumption (kW per year) which is calculated on an average expected use of the appliance over a year.
Water consumption is measured in litres per wash for appliances when the programme settings below the figure shown are applied.


LED lighting

Not all light bulbs are created equal and considering lighting contributes to around 10% of the household power bill it is worthwhile thinking twice about which bulbs you buy.

There are three main types of light bulb: incandescent, Light Emitting Diode (LED) and Compact Fluorescent Lights (CFL). Halogen is also common, which is a modern incandescent light bulb.

LED bulbs don't have a filament like a traditional light bulb.

Energy saving bulbs

CFL bulbs contain a gas that when excited by electricity produces invisible ultraviolet light (UV), which turns into visible light when it hits a white coating inside the bulb. CFL's contain a small amount of mercury, so take extra care when handling and disposing of them.

Incandescent light bulbs are traditional light bulbs. They use a filament that is heated until it glows white hot producing light. They are less efficient as they produce more heat than light.

Electricity saving tips

  • Appliances that use standby power can account for up to 7% of your power bill. TVs, stereos and DVD players don’t need to be on all the time. Plug them all into a multi-plug board so they can all be turned offproperly with one easy flick of the switch.
  • To keep your towel warm and dry all year round AND save on power opt for a timer. You’ll avoid unnecessary heating and could save up to two thirds of the cost by not leaving it on continuously.
  • Get into the habit of turning the light off once you leave the room.


LED lighting tips

LED light bulbs and CFL light bulbs use a similar amount of energy and have the same brightness but LEDs tend to last longer - up to 20 years, while CFLs last up to about 9 years.

To change to LED lighting in your home can be as easy as changing the bulb. Choose those that are suitable (they come in both bayonet and screw fittings) and fit them as you would a normal light bulb.