TL;DR
- Leave clearance: around 12 cm / 5 inches at the back and sides, more above.
- Not directly under a cabinet; the hot exhaust can scorch or warp it.
- Never on the hob or next to the toaster’s heat.
- Flat, heat-resistant surface away from the edge and from water.
- Good airflow keeps it running efficiently and safely.
Table of Contents
An air fryer pushes a lot of hot air out of its exhaust vent, usually at the back or top. Put it in the wrong spot and that heat has nowhere to go, which can scorch cabinets, trip the safety cut-out, or shorten the machine’s life. Placement is a small thing that matters more than people expect.
How much clearance does it need?
As a rule, leave about 12 cm or 5 inches of space at the back and sides, and more above the exhaust if it vents from the top. Check your manual, since some models vent differently and specify their own clearances.
| Direction | Recommended clearance |
|---|---|
| Behind | ~12 cm / 5 in |
| Sides | ~12 cm / 5 in |
| Above (top vent) | ~25 cm / 10 in |
Why not under a cabinet?
If the vent is at the back or top, the hot exhaust rises straight into the underside of an overhead cabinet. Over time that heat can discolour, warp or even scorch the cabinet, and trapped heat makes the air fryer work harder. Pull it forward when cooking if your worktop sits under units.
Places to avoid
- On top of the hob or oven, where extra heat builds up.
- Right against a wall or backsplash that blocks the vent.
- Next to the kettle or toaster, adding more heat and steam.
- Near the sink or anywhere it could get splashed.
- On a wobbly shelf or too close to the counter edge.
The ideal spot
A flat, stable, heat-resistant surface with open space behind and above, away from water and from other heat sources. Good airflow keeps cooking efficient, which also keeps running costs down, and reduces the fire risks we cover in air fryer fire safety.
Frequently asked questions
Where should you place an air fryer?
On a flat, stable, heat-resistant surface with clear space behind, at the sides and above the vent, away from water and other heat sources. Around 12 cm of clearance at the back and sides is a good rule.
Can you put an air fryer under a cabinet?
Not while it is running, if the vent is at the back or top. The hot exhaust rises into the cabinet underside and can scorch or warp it over time. Pull the air fryer forward to cook, or place it where nothing overhangs the vent.
How much space does an air fryer need around it?
About 12 cm or 5 inches at the back and sides, and more above if it vents from the top, roughly 25 cm. Always check your model’s manual, as clearance requirements vary by design.
Can you put an air fryer on the hob?
No. The hob is a heat source and may not be stable or heat-resistant in the right way, and any accidental ignition of the burner would be dangerous. Use a separate worktop area.
Does an air fryer need ventilation?
Yes. It vents hot, sometimes greasy air, so it needs open space around the exhaust and benefits from a kitchen with normal ventilation. Trapping the vent makes it run hotter and less efficiently.