AC in the Kitchen: Considerations for Placement

Kitchens heat up faster than most homeowners realise. Everyday cooking adds extra heat to the space, and building research shows that this kind of internal buildup is a key reason homes can start to overheat.

According to analysis by the Climate Change Committee, around half of UK homes already face overheating risk under current conditions, with many failing to meet comfort thresholds during warmer periods.

Additionally, considering that, according to the Met Office, all of the top ten warmest years have occurred since the year 2000, with five in the most recent decade, 2015-2024, it might be time to install air conditioning (AC) in your kitchen.

But can you install an AC in a kitchen safely?

Can You Install AC In A Kitchen?

The short answer is yes.

However, it’s worth bearing in mind that you’re trying to cool a room that occasionally turns into a mini heat factory.

The decision isn’t really about whether you install AC; it’s about whether the system is set up to handle how a kitchen actually behaves.

Because kitchens aren’t stable environments, with temperatures shifting depending on which appliance is running, the AC will need to work harder to maintain a comfortable average temperature.

This is where installation makes all the difference.

A poorly placed unit, especially one sitting too close to heat or steam, ends up reacting to the wrong signals.

It thinks the whole area is hotter than it really is, works harder than it needs to, and cycles on and off more frequently.

Over time, that means higher running costs, more wear, and less consistent comfort.

A well-placed system does the opposite.

It reads the room properly, avoids direct heat exposure, and moves air across the area rather than fighting it.

Most importantly, it handles those temperature swings without constantly overcorrecting.

So, where should you place your AC in your home?

Where Should You Place The Indoor Unit?

The placement of your AC is everything in a kitchen.

Here are a few things to bear in mind when selecting a new spot for your kitchen’s AC.

An Engineer’s View

“Kitchens are notoriously tricky because the heat load fluctuates massively the moment you turn on the hob or oven. Positioning the indoor unit to manage the overall ambient air, rather than reacting to a direct blast of heat, is the secret to an efficient and comfortable space.” – Rhys Powell, F Gas Engineer

Keep It Away From Direct Heat Sources

Kitchens have very clear hotspots, ovens, hobs, and cookers, all pushing heat into the room, often in bursts.

If your AC unit sits too close to these sources, it will respond to those spikes rather than to the overall indoor temperature conditions.

This means it “thinks” the whole kitchen is hotter than it actually is, leading to overworking, inefficient cycling, and uneven cooling.

A better approach is to position the unit somewhere it can read a more balanced temperature, away from direct heat but still able to influence the whole space.

Avoid Steam and Grease Zones

Heat isn’t the only thing your AC has to deal with.

Steam, moisture, and airborne grease are part of everyday kitchen life, but they’re not great for your AC system.

Over time, they can clog filters more quickly and reduce performance, leading to more maintenance and less efficient cooling.

That’s why it’s worth placing the unit slightly away from sinks, dishwashers, and the main cooking areas.

Prioritise Airflow Across The Room

Cooling a kitchen isn’t about blasting one spot with cold air. It’s about moving air across the entire room.

Usually, this means installing the unit higher up on a wall, facing into the open area, with as few obstacles as possible.

When airflow is uninterrupted, the temperature evens out more naturally, and you avoid those pockets of trapped heat that tend to linger around cooking zones.

How To Choose The Right Size AC For Your Kitchen

While most rooms heat up gradually, kitchens can change quickly. Start cooking, and the temperature rises fast.

That sudden surge in heat is what causes undersized air conditioning units to struggle.

Here’s how you select the right-sized AC for your kitchen:

Appliance Heat Output

Your oven, hob, kettle, and other appliances all add heat to the room, often at the same time.

This is one of the biggest differences between a kitchen and a standard room.

The more frequently you cook and the more appliances you use at once, the more cooling power your AC system will need to keep up.

If you use your kitchen frequently, you may need a higher-capacity system to keep up with the added heat.

Room Size And Layout

Floor area still matters, but it’s only part of the picture.

Open-plan kitchens, L-shaped layouts, and connected dining areas all change how air moves.

Larger or more open spaces typically require more capacity, especially if the kitchen isn’t contained.

Jargon Buster: Solar Gain The increase in temperature in a room that results from direct sunlight. In south-facing kitchens or those with large windows, solar gain creates a significant additional heat load that your AC must work harder to cool.

Ceiling Height And Air Volume

It’s not just the size of the floor that matters; it’s the volume of air in the room.

Higher ceilings mean more air to cool, which increases the demand on your system.

Even small differences in ceiling height can affect how quickly a space cools down.

Sunlight And Window Exposure

If your kitchen gets a lot of direct sunlight, particularly in the afternoon, that heat builds up throughout the day.

South-facing kitchens or spaces with large windows often need more cooling capacity to offset solar gain, especially during warmer months.

Ventilation And Extraction

Good ventilation can make a noticeable difference.

Extractor fans and cooker hoods remove heat, steam, and moisture at the source.

If your kitchen has strong extraction, your AC system won’t have to work as hard.

If it doesn’t, you may need a slightly more powerful unit to compensate.

Getting the placement and sizing right is what turns air conditioning from a nice idea into something that genuinely works in your kitchen.

If you’re unsure how these factors apply to your home, it’s often easier to start with a guided AC survey rather than trying to calculate it manually.

Get Expert Advice By Answering WarmZilla’s Survey

Instead of guessing the right AC system for your kitchen or risking installing an undersized unit that struggles to keep up, you can get a recommendation based on how your space actually works.

Take WarmZilla’s AC survey and take the complexity out of finding the unit best suited for your home.

And when it’s complete, you’ll also receive a quote.

Frequently Asked Questions

Can You Safely Install Air Conditioning In A Kitchen?

Yes, air conditioning can be safely installed in a kitchen, provided it is positioned correctly.

The unit should be placed away from direct heat, steam, and grease to ensure it runs efficiently and requires minimal maintenance.

What Size AC Unit Do I Need For My Kitchen?

Kitchens typically require a slightly higher-capacity air conditioning unit than other rooms of the same size.

This is because cooking appliances, sunlight, and room layout all add extra heat, which the system needs to handle effectively.

Is It Better To Install AC Inside The Kitchen Or Nearby?

In open-plan homes, it can often be more effective to install the AC unit just outside the kitchen and allow cool air to flow in naturally.

This helps protect the system from heat and grease while still keeping the space comfortable.