Air conditioners FAQ

Everything you've ever wanted to know about air conditioners

A typical wall-mounted air conditioner.

A typical wall-mounted air conditioner.

When you're looking at buying an air conditioner, lots of little questions pop up. We've answered a few of the main puzzles with buying an air conditioner here:

What size unit should I purchase?

Air conditioners are rated in Kilowatts (kW). This is a measure of two factors: an air conditioner's output capacity (the amount of heat that will be removed (cooling) or added (heating) to the room/s in your house by the air conditioner); and its energy consumption (the energy the air conditioner uses per hour at rated capacity). Both these measurements are shown on the Energy Efficiency Rating label found on all air conditioners as Capacity Output kW and Power Input kW.

The amount of kW you will need depends on the size of the room you want to heat/cool and its heat load, which is determined by environmental factors such as the amount of windows and sunlight in the room, weather conditions and what type of insulation you have. Generally, the bigger the area you have, the more kW you will need to service it. Many air conditioners list a suggested room size to match the kW rating. You should be prepared to discuss room size as well as insulation, windows and so on with the sales member. You may also wish to consider getting an air conditioner installer to measure your room's heat load and the required kWs needed to heat/cool it.

What is an inverter system?

An inverter system lets your air conditioner alter the speed of its motors (compressors) in response to cooling demand. The result is a controllable and energy efficient system that is not only cheaper to run, but also uses a smaller power supply.

What is the difference between a split system and a package unit?

A split system has an indoor and outdoor part that is connected together. They provide quieter and more efficient air conditioning than a single package unit. They work by placing the cooling parts of the air conditioner in the outside unit and then having one or two inside components that contain the fans. Generally, one outdoor unit can power two indoor units at the same time. A package unit requires no external components but has to be installed through a window or wall. These units are good for small rooms, but some people find them bulky and unattractive.

What is the difference between a split system and a multi split system?

A split system has an indoor and outdoor part that is connected together. Meanwhile a multi split system has just the one outdoor part that is connected throughout the house through multiple indoor parts installed in each room. So while a split system powers up the one room, a multi split system powers up the whole house from one outdoor part.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags home appliancesair conditioners

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

GoodGearGuide Staff

Good Gear Guide
Show Comments

Brand Post

PC World Evaluation Team Review - MSI GT75 TITAN

"I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it."

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?