Left the Iron On? What Auto Shut-Off Does (and Which Irons Have It)

Last updated: 21 October 2026

London Fire Brigade has attributed at least two recent house fires to irons left on: one in Twickenham in January 2026 and one in Southall in August 2024. An auto shut-off cannot replace the habit of switching off and unplugging, but it removes the most common failure: an iron left face down on the board or a shirt.

What does auto shut-off actually do?

Auto shut-off is a motion sensor and a timer. If the iron sits still for longer than the set time, the electronics cut power to the heating element, and most models flash a light or beep. Move the iron and it starts heating again.

It is worth being clear about what it does not do.

• It does not unplug the iron. The plug, the cord and the control board stay live. Russell Hobbs’ manuals say the iron “will switch off”, but it is still a connected appliance.
• The soleplate stays hot. A 2,400W to 3,100W iron heats its soleplate to around 200°C on the cotton setting. Cutting the power stops the heating; it does not cool the plate, which keeps enough heat to scorch fabric for some minutes.
• Movement restarts it. Manuals from Russell Hobbs, Tefal and Morphy Richards all say that shaking or lifting the iron brings it back to temperature. A knock from a pet or a child can do the same.
• Not every model has it. Auto shut-off is standard on mid-range and premium irons but missing from many budget steam irons, dry irons and travel irons, and from several steam generators.

Some listings go further. Tefal’s Pro Express Protect, Morphy Richards’ Power Steam Elite and Tower’s CeraGlide listings say the iron also switches off if it is knocked over, and Argos says the same of the Russell Hobbs Powersteam Ultra 20630 (Currys calls it a three-way auto shut-off) and the Morphy Richards Turbo Glide 302000. Treat retailer wording with care: the Russell Hobbs 20630 manual itself describes only the flat and upright timers. Braun’s TexStyle 1 uses a motion sensor rather than a simple timer.

How long before an iron switches itself off?

The timings below come from manufacturer manuals and product sheets. The pattern is the same across most brands: a short delay when the iron is face down or on its side, where it can scorch, and a long delay when it is standing on its heel.

Steam generators work differently from irons. The base, not the iron, has the timer, so the delay is measured from the last press of the steam trigger or the last movement, and it is longer: 8 to 10 minutes where a figure is published. Philips’ PerfectCare 7000 series manual says the unit switches off automatically when it has not been used for 10 minutes; we could not find a published figure for the PerfectCare 8000.

How long does the soleplate stay hot after switching off?

No manufacturer we checked publishes a cooling time, so treat any figure as a rule of thumb. Our rule: do not touch the soleplate, wrap the cord or put the iron away for at least 30 minutes after switching off, and give a steam generator base longer, because the boiler holds pressurised hot water. Our steam generator cleaning guide suggests two hours before opening the base.

What matters for fire safety is where the iron cools. An iron on its heel on a metal iron rest, with nothing touching the soleplate, cools harmlessly. An iron lying face down on a cotton cover, a towel or a bed keeps feeding heat into fabric that cannot move away from it. London Fire Brigade’s advice on hair straighteners applies equally to irons: switch them off and leave them to cool on a heatproof surface.

What to do if you think you left the iron on

1. Check a smart plug or camera first. If the iron is on a smart plug, switch the socket off from your phone. Many UK smart plugs are rated at 13A, which is about 3kW, so check the rating before using one with a 3,100W iron. A home camera can show you the board in seconds.
2. Ask someone to look. A neighbour, partner or keyholder can check and unplug it. If you are close, go back yourself.
3. Do not assume auto shut-off has saved you. It probably has, if the iron is a recent mid-range model standing on its heel. If the iron is face down on the board, or is a budget or dry iron without the feature, treat it as live.
4. Call 999 if there is any sign of fire. If a neighbour reports smoke, an alarm sounding or a smell of burning, call 999 and ask for the fire service. Do not go in to fetch the iron. If nothing suggests a fire, it is not a 999 call.
5. When you get home, unplug the iron at the wall before touching it, check the board cover and anything beneath it for scorching, and let everything cool before storing.

Safe-ironing checklist

These points draw on London Fire Brigade’s advice after the Southall and Twickenham fires and its electrical items guidance, plus the habits that stop irons scorching.

• Switch the iron off as soon as you leave the room, even for a phone call. London Fire Brigade’s wording after the Southall fire: switch equipment such as irons, hair straighteners and portable heaters off as soon as you leave the room.
• Check irons are switched off and unplugged when not in use. The Brigade repeated this after the Twickenham fire.
• Stand the iron on its heel, on the board’s iron rest, between garments. Never leave it face down.
• Keep clothing, bedding and the ironing pile away from the iron and its cord.
• Keep worktops clear near irons, toasters and hobs. Clutter can switch an appliance on or catch fire.
• Plug the iron straight into a wall socket. London Fire Brigade advises one plug per socket for high-powered appliances, and says cable-drum extension leads should always be completely unwound.
• Do not iron on a bed or carpet. If you have no board, follow our guide to ironing without an ironing board.
• Let the iron cool on a heatproof surface before wrapping the cord or putting it in a cupboard.
• Fit and test smoke alarms. A fire from an iron starts slowly and gives an alarm time to work.
• If you are forgetful, buy an iron with auto shut-off and put it on a smart plug with a schedule.

Which recommended irons have auto shut-off?

The tables cover every iron and steam generator we recommend across the site. “Yes” means the manufacturer or a named retailer specification lists the feature. “No” means a specification lists it as absent. “Not published” means we could not find it stated either way, or listings contradict each other, and we would not rely on it. Timings are given only where the maker or a listing states one.

Steam irons

Cordless irons

Steam generators

Travel and dry irons

Two patterns stand out. First, the feature is close to universal on irons from the big five brands and absent or unstated on most cheap, travel and dry irons. Second, steam generators are less consistent than irons: Tefal’s UK pages list “Auto-Off” for the Pro Express Vision and Protect but do not state it either way for the Ultimate II or Express Airglide, while Currys lists the Russell Hobbs Steam Power 24420 as not having it. “Not stated” is not the same as “absent”, so if you want the feature on a generator, check the specification line rather than assuming.

Frequently asked questions

Related guides

• Best steam irons UK
• Best steam generator irons
• Best cordless irons
• Steam iron buying guide
• How to iron without an ironing board

Sources: London Fire Brigade incident report: house fire, Twickenham, January 2026; London Fire Brigade incident report: house fire, Southall, August 2024; London Fire Brigade, Electrical items; Russell Hobbs user manuals for the 20630, 26340, 25900, 25910 and 23260 (the 2600W Supreme Steam, not the 23060); Philips 3000 Series DST3040 product sheet; Philips product sheets and manuals for the DST8020, GC4938, GC4860 and PerfectCare 7000 series; Tefal UK and Ireland product pages (Access Protect, Ultimate Pure, Puregliss FV8064, Freemove Power, Pro Express Vision GV9820, Express Airglide SV8022, Pro Express Ultimate II GV9710); Braun TexStyle 7 Pro product page; Morphy Richards support pages for the easyCHARGE 303250/303251; Beldray Precision1 product page; Swan product pages for the SI12051AQ, SI12054AQ, SI12056AQ and SI16410N; Corby of Windsor Sherwood product page; Currys, Argos, John Lewis and Sainsbury's specification listings where manufacturer pages do not state the feature. How we research.