Can You Put Air Conditioning in a Kitchen?
Kitchens are often the warmest room in the house. Cooking, appliances, glazed extensions and roof lights all add heat, which is why kitchen-diners are one of the most common rooms we're asked to cool.
A wall-mounted split system works well in most home kitchens, as long as the indoor unit is kept away from the hob and oven, the filters are cleaned more often than in other rooms, and the system is sized for the whole open-plan space. Modern units heat as well as cool, so a kitchen-diner stays comfortable all year.
Where should air con go in a kitchen?
The best place is high on a wall away from the hob, ideally across the room from it, where the unit can blow air along the length of the space. Never fit it directly above the hob or oven, where it would sit in rising heat, steam and grease.
Good positions | Positions to avoid |
High on an end or gable wall, facing the length of the room | Directly above the hob, range or oven |
Above a door or window on the dining side of a kitchen-diner | Where airflow hits the hob (it can make gas flames flicker) |
Your installer should also check access for cleaning the filters, a route for the condensate drain and where the outdoor unit can go. A good survey covers all of this before any quote is agreed.
Will cooking fumes and grease damage it?
Cooking won't damage a well-placed unit, but airborne grease will clog the filters faster than in a bedroom or lounge. Clogged filters cut airflow, raise running costs and can start to smell.
Three habits keep a kitchen unit working well:
Use your cooker hood. Run the extractor whenever you cook, so steam and grease leave the room before they reach the air con.
Clean the filters more often. Rinse the washable filters roughly every two to four weeks in a kitchen, rather than every few months.
Book an annual service. An engineer cleans the coil and fan, checks the drain and confirms the system is running efficiently.
Air con and an extractor do different jobs. The hood removes fumes at source, while the air con controls the temperature of the room. Air con doesn't replace an extractor.
Which type of air con suits a kitchen?
For most home kitchens, a wall-mounted split system is the best choice. It's quiet, efficient, heats as well as cools, and needs only a small hole through the wall for the pipework.
Type | Best for | Things to know |
Wall-mounted split | Most kitchens and kitchen-diners | Most affordable fixed option; easy filter access |
Multi-split | Kitchen plus other rooms | One outdoor unit runs up to five indoor units |
Floor-standing | Kitchens with little high wall space | Sits low; keep it clear of furniture |
Ceiling cassette or ducted | New builds and extensions with a ceiling void | More expensive to install, most discreet; best planned before plastering |
Design matters in a modern kitchen. Ranges such as Daikin's Stylish come in a choice of finishes, so the unit can blend in or stand out on purpose.
How powerful does kitchen air con need to be?
Your design engineer will size the system for the whole open-plan space, not just the cooking area, and allow extra for heat from appliances, glazing and high ceilings. An undersized unit runs flat out and struggles on hot days; an oversized one cycles on and off and wastes energy.
The main factors are:
Floor area and ceiling height: a vaulted or double-height room holds far more air than its floor area suggests.
Glazing: bifold doors, roof lanterns and south or west-facing glass add a lot of summer heat.
Appliances: ovens, hobs, dishwashers and fridges all give off heat.
How you use the room: a busy family kitchen-diner needs more capacity than an occasional galley kitchen.
As a rough guide, our price bands run from small rooms of 6–12 m² up to extra-large open-plan spaces of 35–50 m². A survey confirms the right size, because two kitchens with the same floor area can need very different systems.
Can kitchen air con heat as well as cool?
Modern split systems are air-to-air heat pumps, so the same unit warms the kitchen in winter and cools it in summer. That makes it useful in large, high-ceilinged kitchen-diners that radiators struggle to heat.
In heating mode the system moves heat from the outside air into the room, rather than generating it from scratch. You control both modes from a remote or a smartphone app, with timers so the room is warm before breakfast.
What does installation involve?
A typical single-room kitchen installation involves fitting the indoor unit, drilling a hole through the wall, running the pipework and drain, and placing the outdoor unit on a wall bracket or ground pad.
Survey: we measure the room, agree the unit position and plan the pipe route and drain.
Indoor unit: mounted on a bracket, high on the wall.
Pipework and condensate drain: run through the wall, often hidden in trunking or inside walls.
Outdoor unit: fixed where it has good airflow and stays quiet for you and your neighbours.
Commissioning: an F-Gas qualified engineer pressure tests and charges the system, then shows you how to use it.
Do you need planning permission?
Usually not for a home. In England, permitted development rules were revised in 2025 to cover the outdoor units of air source heat pumps, including systems that heat and cool. These rules have limits on unit size, number and noise. Cooling-only systems aren't covered, and listed buildings and conservation areas have extra restrictions.
A real installation: a vaulted open-plan kitchen in Hampshire
We fitted a single wall-mounted unit high on the wall of a vaulted kitchen-diner, giving the whole room cooling in summer and heating in winter.
The room: open-plan kitchen, dining and living space under a vaulted ceiling.
The challenge: the tall space overheated in summer and was slow to warm in winter.
The solution: a Prefera wall-mounted split, set high in the vaulted ceiling. It sits well away from the hob and blows air down the length of the room, over the island and seating area.
The installation: the unit was mounted on an internal wall, our team ran trunking via the garage to the outdoor unit.
Kitchen air conditioning FAQs
Can you put an air conditioning unit above a hob? No. Heat, steam and grease rising from the hob would clog the unit and shorten its life. Fit it on another wall.
Is air con in a kitchen a fire risk? Not when it's installed correctly away from the hob and oven and serviced regularly. Keep it clear of direct heat and flames.
Will air con blow cooking smells around the house? A wall-mounted split recirculates air within the kitchen only, so it doesn't carry smells to other rooms. Use your extractor to remove odours.
How often should I clean kitchen air con filters? Roughly every two to four weeks, depending on how much you cook. Book a professional service once a year.
Is kitchen air con noisy? Modern indoor units are quiet enough for a living space, and you can set a lower fan speed while you eat.
Can I have air con in a kitchen extension? Yes, and it's easiest to plan before the walls are finished, so pipework and drains can be hidden.
Does a kitchen air conditioner replace my extractor fan? No. The extractor removes fumes and steam at the hob; air con controls the temperature of the room.
Get air conditioning for your kitchen
Cold Control has designed and installed air conditioning since 1989, and we're accredited installers for Daikin, Mitsubishi Electric, LG and Samsung. We cover Hampshire, London and the South. Book a free, no-obligation survey and we'll recommend the right unit and position for your kitchen.
