Wall Mounted Air Conditioners

What is a wall mounted air conditioner?

A wall mounted air conditioner is fixed high up on the wall, usually near the ceiling, and connected to an external compressor. This type of air conditioning unit wall mounted setup is known for being discreet, quiet, and highly efficient. It’s perfect for living rooms, bedrooms, offices, or any area that benefits from stable temperatures and minimal noise.

Which wall mounted air conditioner is right for you?

Wall mounted AC units are a smart, permanent solution for keeping your environment comfortable in every season. They're ideal for rooms where floor space is limited and aesthetics matter. Here's what to consider when choosing the right wall mounted air conditioning unit.

Key benefits of a wall mounted AC unit

• Space-saving design: Wall mounted systems keep your floors and windows clear, giving you more freedom with furniture and layout.
• Efficient cooling and heating: Most units are heat pumps, offering both cooling in summer and warmth in winter.
• Quiet operation: Ideal for sleeping areas or workspaces where silence matters.
• Smart control: Many models include remote controls, programmable timers, and Wi-Fi connectivity for control via smartphone apps.

Sizing your air conditioning unit wall mounted

The size of the unit you need depends on the size of your room. This is measured in BTUs (British Thermal Units).We have provided a rough guide below but you can use our air conditioner BTU calculator As a guide:

• Up to 20m² choose a unit around 9,000 BTU
• 21-30m²: look for 12,000 BTU
• 31-40m²: opt for 18,000 BTU
• Larger spaces or open-plan areas may need multiple units or a more powerful system

Need help choosing? Use our air con buying guide or speak to our team for tailored advice.

Installation and maintenance

All wall mounted air conditioning units must be installed by a qualified engineer. We offer a professional air conditioner installation service to make the process simple and stress-free. To keep your system running smoothly:

• Clean or replace filters regularly
• Keep vents clear of dust or blockages
• Book a routine service every 1-2 years

Installation and maintenance

Modern wall mounted AC units are far more energy efficient than older models. Many are rated A+ or higher and use eco-friendly refrigerants. Features like inverter technology help maintain stable room temperatures while using less power. Look out for:

• Inverter compressors (for smoother, more efficient operation)
• A++ energy ratings
• Low Global Warming Potential (GWP) refrigerants like R32

Still deciding?

If you’ve reached the bottom of this page and haven’t found the right fit, try narrowing your search by:

• Room size or BTU rating using the filters above
• Brands you trust, like electriQ, Daikin or Mitsubishi
• Or look for added features like smart control, heating modes, or ultra-quiet operation

You can also browse our customer reviews to see what others think before you buy.: