Room guide
Kitchen extension air conditioning
Bifold doors, roof lanterns and an oven all in one room make a modern rear extension one of the warmest spaces in the house. It needs a bigger unit than its floor area suggests.
Guide figure on screen in about 3 minutes. No call-back needed.
- Best system type
- Larger wall unitOr a floor console or ceiling cassette where walls are full of glass or cupboards.
- Main factor
- The glassRoof lanterns and bifolds decide the size more than the floor area does.
- Things to check
- Wall space clear of cupboards
- Keeping the unit away from above the hob
- The pipe route, best planned during the build
Where the heat comes from
A south or west-facing extension with a roof lantern collects sun for most of the day, and cooking adds more. Open-plan layouts also mean a single unit has to look after the kitchen, dining and sitting areas together. That’s why sizing for these rooms is done carefully, rather than by floor area alone.
Tell the estimate about the extension and its glazing, and see a figure.
Which kind of unit
- High wall unitThe simplest choice if there’s a clear wall above head height.
- Floor consoleSits low, like a slim radiator. Useful where walls are full of glass or cabinets.
- Ceiling cassetteFits flush in a ceiling void. Best planned while the extension is being built.
Not sure which unit suits? The survey settles it. Start with a guide figure.
If you’re still building
An extension under construction is the easiest time to add air conditioning. Pipework and a condensate drain can be hidden in the walls or ceiling, and a cassette can be set into the ceiling before it’s finished. Ask your builder to leave a route and a power supply, even if the unit goes in later.
Still building? A guide figure now helps you plan the budget.
Kitchen extension questions
Things people ask
Will a unit cope with cooking heat?
Yes, if it’s sized for the room. Keep the indoor unit away from directly above the hob, where grease and steam would clog its filter.
Can one unit cover a big open-plan room?
Often, yes. Very long rooms sometimes work better with two smaller units on a multi-split, which the surveyor will suggest if needed.