Electric heater for bathroom in the UK: which heaters the bathroom zones allow, the IP each needs and who wires it
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An electric heater for bathroom use in the UK is chosen by where it goes: sockets must be 2.5 m from the edge of the bath or shower tray, and within 0.6 m of it a heater needs IPX4 and a fixed connection. Our pick, the Ready Warm 7000 Quartz Bath, declares IP24 and hangs outside the zones.
Jump to: the 2.5 m socket rule · the bathroom zones checker · the zones table · who wires it · the heaters one by one · cost per shower · comparison · questions
Can you use an electric heater in a UK bathroom? Yes, but a plug-in one needs a socket 2.5 m from the water
Yes, and the rule that decides which one comes before watts or price. Electrical Safety First, the UK electrical safety charity, puts it in one line: sockets are not allowed in bathrooms or shower rooms, apart from shaver supply units, unless they can be fitted at least 2.5 metres from the edge of a bath or a shower tray. In a small bathroom that distance does not exist, so there is nowhere legal to plug a heater in, and an extension lead from the landing is exactly what the same charity tells people to avoid for heaters.
That is why the heaters that fill this search in the UK, from bathroom panel heaters to pull-cord downflow fan heaters, are fixed to the wall, splash-rated and wired to a fused spur. A plug-in heater still has a place, in the bathroom that has a compliant socket, and that is what the heaters of this guide with a UK listing are: the two portables and, by its own manual, the wall-mounted Quartz Bath too.
Read two UK guides and you can find two distances for the same socket. Both are official in their time, and only one is current.
«230 V 13 A socket outlets are allowed, but only if they are at least 3 m horizontally from the boundary of zone 1», in the IET's Wiring Matters article by Geoff Cronshaw, written for the 17th Edition of the Wiring Regulations (BS 7671:2008).
Normal sockets «are only permitted in bathrooms if they are at least 2.5 metres away from the edge of your bath or shower tray» (NICEIC), and shaver supply units are the only exception inside that distance (Electrical Safety First).
The IET article is the PDF Section 701, Locations containing a bath or shower, on electrical.theiet.org; NICEIC's «Bathrooms and electrics» and Electrical Safety First's bathroom safety page and socket answer. All three read on 27 September 2026 and linked in the sources.
m8d rule: If a guide says 3 m, it describes the 2008 rules. Measure 2.5 m from the edge of the bath or shower tray: closer than that, a plug-in heater has nowhere legal to go, and the heater you want is one made for a fused spur.
Bathroom zones checker: where an electric heater can go in your bathroom, zone by zone
BS 7671, the Wiring Regulations, treats a room with a bath or shower as a special location (section 701) and measures it into zones from the edge of the bath or shower tray. The checker below does that measuring for the spot you have in mind and returns the zone, what it requires and the heater from this guide that fits there. One of its answers sells nothing: it shows you how to measure.
Bathroom zones checker for an electric heater
The bathroom zones checker from m8d.io places the heater you want to buy in the zone of BS 7671 section 701 where it would hang, and tells you what that zone requires: IP rating, a fixed connection or a socket 2.5 m away. Free, no sign-up. Example: a wall 1 m from the shower tray is outside the zones, with no extra IP rule, and a plug-in heater such as the IP24 Ready Warm 7000 goes there if its socket is 2.5 m from the water.
More than 0.6 m from the edge of the bath or shower tray you are outside the zones, and section 701 adds no IP rating there. What still decides is the plug: the heater below asks in its manual for an earthed wall socket, not directly below it, and in a UK bathroom an ordinary socket is only allowed 2.5 m from the edge of the bath or shower tray. With that socket, it fits this spot, and its IP24 gives margin against splashes; without it, the answer is a heater made for a fused connection unit, fitted by an electrician.
Zones, heights and IP ratings: BS 7671 section 701 as set out by NICEIC and in the IET's Wiring Matters guidance; the 2.5 m socket rule and RCD protection from NICEIC and Electrical Safety First; how each heater connects, from its maker's page and manual. All read on 27 September 2026 and linked in the sources at the foot of this guide.
UK bathroom zones table: zone 0, zone 1 and zone 2 under BS 7671 section 701
The zones are measured, not guessed: horizontally from the edge of the bath or shower tray, and vertically from the finished floor. NICEIC's guide and the IET's Wiring Matters summary of section 701 give the same boundaries, both read on 27 September 2026.
Inside the bath or shower tray, anywhere that can hold water. IPX7, protected against immersion: none of the heaters in this guide goes anywhere near it.
Above zone 0, up to 2.25 m from the floor or the highest fixed shower head, whichever is higher; 1.2 m from the centre of the outlet for a shower without a tray. IPX4 at least (IPX5 with cleaning jets), and only fixed equipment the maker rates for zone 1.
A band 0.6 m wide around zone 1, to the same height. IPX4 at least. Fixed, splash-rated wall heaters, the cords of pull switches and a shaver supply unit to BS EN 61558-2-5.
Beyond 0.6 m. Section 701 adds no IP rating here, and switches and fused connection units can go here; an ordinary socket still has to be 2.5 m from the edge of the bath or shower tray.
m8d rule: Measure 0.6 m out from the edge of the bath or shower tray and 2.25 m up: inside that box a heater needs IPX4, a fixed connection and instructions that name the zone, and any ordinary socket has to be 2.5 m away from the same edge.
What is not in the table, and matters just as much. Every circuit in or passing through a bathroom has to be protected by an RCD (Electrical Safety First), which the IET's article sets at 30 mA. And the IP rating is not the whole check: the IET asks installers to check that the maker's instructions confirm the appliance is suitable for the zone, as well as reading its IP. The Quartz Bath in this guide is the case in point: IP24 on its product page, and no zone in its manual, so it stays outside the zones.
Who can fit a bathroom heater: the fused spur, the pull cord, the RCD and Part P
A fixed bathroom heater is a small job with four rules around it, and each one comes from a UK source you can read in a minute. None of them is about the heater itself: they are about where its wire and its switch end up.
- A fused connection unit outside the zones. Section 701 lets switches and fused connection units sit beyond zone 2 (IET), so the heater is wired to a switched fused spur there instead of a plug.
- A pull cord inside them. The cords of cord-operated switches are allowed in zones 1 and 2 and the IET recommends them for bathrooms, which is why the UK bathroom heater has one.
- RCD protection. All circuits in or passing through a bathroom have to be protected by an RCD (Electrical Safety First), set at 30 mA in the regulation the IET cites.
- Notification. NICEIC puts it plainly: in bathrooms, any installation or alteration within zones 0, 1 or 2 is notifiable. A registered electrician can notify it for you.
The four bathroom heaters with a UK listing, one by one, with what each maker declares
Six heaters make up this guide in Spain; four of them have a listing on Amazon UK today, and those are the four here. They split cleanly by the rules above: a splash-rated wall heater and two portables, all three plugged into a socket by their makers' instructions, plus a timer wall heater that belongs outside the zones. None of the four has instructions that name a bathroom zone.
Cecotec Ready Warm 7000 Quartz Bath view ›
The best of the four for the wall of a UK bathroom that has a socket far enough from the water: IP24 on its maker's page, a wall bracket, quartz heat over the spot where you dry off and a pull chain. Its manual asks for an earthed wall socket and names no zone, so it goes outside the zones; a heater for zone 2 needs instructions that say so, and these do not. It has no thermostat and no timer: a ten-minute heater, not the heating of the room.
- Cecotec's product page declares IP24, protection against splashing from any direction, and calls it suitable for bathrooms. Of the heaters in this guide, it is the only one whose maker publishes an IP rating that high.
- It is 1200 W of quartz (600 W on the eco setting) with an adjustable angle: radiant heat that warms what it points at from the moment it is switched on, which is what you want when you step out of the shower.
- It hangs on the wall with the bracket included and is switched with a pull chain. Its manual asks for an earthed wall socket, not directly below the heater, and names no bathroom zone: in a UK bathroom it goes on a wall outside the zones, with a socket at least 2.5 m from the edge of the bath or shower tray.
- IP24 declared on its maker's page
- Instant quartz heat with an adjustable angle
- Pull chain: no switch to touch with wet hands
- Its manual names no bathroom zone: outside the zones only
- Plugs into an earthed socket, which in the UK must be 2.5 m from the bath or shower
- No room thermostat and no timer
Cecotec Ready Warm 6100 Ceramic Rotate view ›
The portable for a bathroom that has a socket far enough from the water, which in the UK means 2.5 m from the edge of the bath or shower tray. There it is a sensible ten-minute heater: ceramic, oscillating, with an eco mode and the tip-over and overheat protections declared. Without that socket, it is a heater for the bedroom next door, not for the bathroom.
- It is a 1500 W oscillating PTC ceramic heater with three modes declared (fan, 750 W eco and full power): enough to take the chill off a normal bathroom in the minutes before a shower.
- It declares tip-over protection, an overheat cut-out and a safety grille, the three protections that matter on a portable heater.
- What its maker's spec page does not declare is any IP rating. In a UK bathroom that settles where it can go: it needs a socket at least 2.5 m from the edge of the bath or shower tray, a dry floor outside the zones, and it is switched off before anyone gets in.
- Oscillating ceramic with a 750 W eco mode
- Tip-over and overheat protection declared
- Moves to any other room when it is not needed
- No IP rating in its maker's spec sheet
- Only usable where a socket 2.5 m from the bath or shower exists
Cecotec Ready Warm 9790 Force view ›
The plain fan heater: 2000 W, two settings, a thermostat and a handle. Its spec sheet declares 30 dB at full power, a figure given here as the maker's, and no IP rating, so the portable rules apply in full: a socket 2.5 m from the bath or shower, a dry floor, and off before the shower.
- It gives 2000 W in two settings with a thermostat: the plain fan heater, with nothing added.
- It weighs 900 g and has a handle, so the same heater warms the bathroom in the morning and the feet under a desk in the evening.
- Its maker's spec page declares no IP rating and 30 dB at full power. The first sends it outside the zones and 2.5 m from the bath or shower, like any portable; the second is the maker's own figure, and it is unusually low for a fan heater.
- 2000 W with a thermostat in a 900 g body
- Two heat settings
- Useful in any other room too
- No IP rating in its maker's spec sheet
- A fan heater moves air, and moving air is heard
The two portables side by side, and the one condition they share. The ceramic Ready Warm 6100 oscillates and has an eco mode; the Ready Warm 9790 is the plain 2000 W fan heater. Neither maker declares an IP rating, so both need the same thing in a UK bathroom: a socket at least 2.5 m from the edge of the bath or shower tray. If your bathroom has none, we would not buy any of the four: what it needs is a heater made for a fused connection unit, with its zone in the instructions, fitted by an electrician.
What an electric bathroom heater costs per shower at the October 2026 price cap
The fear of a bathroom heater comes from confusing power with cost. The cost is power multiplied by time: a quarter of an hour of warm bathroom uses between 0.3 and 0.5 kWh, which at the price cap is pennies. What is expensive is not the watts, it is the heater left on, and that is why a pull cord that turns it off, or a thermostat, saves more than a smaller heater that stays on all morning.
Electric bathroom heaters compared: IP rating, fitting and the UK zone each one belongs in
| Bathroom heater | Best for | Power and type | Declared IP | Fitting | Where the UK zones put it | |
|---|---|---|---|---|---|---|
| Cecotec Ready Warm 7000 Quartz Bath view › | A wall outside the zones | 1200 W · quartz | IP24 on its maker's page | wall bracket, pull chain, plug | outside the zones, socket 2.5 m away | View › |
| Cecotec Ready Warm 6100 Ceramic Rotate view › | A bathroom with a compliant socket | 1500 W · oscillating ceramic | not declared, not even on the maker's page | portable | outside the zones, socket 2.5 m away | View › |
| Cecotec Ready Warm 9790 Force view › | The plain portable | 2000 W · fan heater | not declared, not even on the maker's page | portable, 900 g with handle | outside the zones, socket 2.5 m away | View › |
 Orbegozo SP 6000 view › | A weekly timer on the wall | 2000 W · PTC ceramic | IP22 | fixed on the wall | outside the zones only | View › |
IP ratings and power are those each maker declares on its own spec page, read on 25 August 2026; how the Quartz Bath connects is from its manual (Cecotec, read on 27 September 2026), which asks for an earthed wall socket and names no zone. Where the UK zones put each one is BS 7671 section 701 as set out by NICEIC and the IET (read on 27 September 2026): zones 1 and 2 ask for IPX4, and an ordinary socket has to be 2.5 m from the edge of the bath or shower tray.
Electric bathroom heater questions asked in the UK
What electric heaters can be used in a bathroom?›
Fixed, splash-rated heaters whose instructions name the zone they suit, wired to a fused connection unit outside the zones: within 0.6 m of the bath or shower (zone 2) the heater needs IPX4 at least. A plug-in heater, even a wall-mounted one such as the Ready Warm 7000, is only an option where the bathroom has a socket at least 2.5 m from the edge of the bath or shower tray.
Is it safe to have an electric heater in a bathroom?›
Yes, when it is fixed in the right zone with the right IP rating and the circuit is protected by an RCD, which Electrical Safety First says every bathroom circuit now needs. What is not safe is a portable heater on an extension lead from another room, or any heater within reach of the bath or shower water.
What is zone 2 of a bathroom?›
The band 0.6 m wide around zone 1, the space directly above the bath or shower tray, up to 2.25 m from the floor or the highest fixed shower head. Equipment in zone 2 needs IPX4 at least, and a heater there also needs instructions that name the zone and a fixed connection, because no ordinary socket can be that close.
Can you put a plug-in fan heater in a bathroom?›
Only if there is a socket at least 2.5 m from the edge of the bath or shower tray to plug it into, which NICEIC and Electrical Safety First give as the rule. Shaver sockets are not for heaters. Without such a socket, choose a fixed heater wired to a fused spur.
Does a bathroom heater need a pull cord?›
Not by law, but switches cannot sit inside zones 1 and 2, while the cords of cord-operated switches can, and the IET recommends them for bathrooms. That is why UK bathroom heaters come with a pull cord; the Ready Warm 7000 is switched by a pull chain.
Do I need an electrician to fit a bathroom heater?›
For a fixed heater, yes in practice: NICEIC says any installation or alteration within zones 0, 1 or 2 of a bathroom is notifiable, and the heater is wired to a fused connection unit outside the zones. A registered electrician notifies the work and certifies it.
What is the cheapest way to heat a bathroom?›
Heat it only while it is used. At the price cap of 26.32p per kWh from October 2026, a 1200 W quartz heater costs about 7.9p for a 15-minute shower and a 2000 W heater about 13.2p; the same 2000 W left on for three hours costs £1.58. A pull cord, a thermostat or a timer saves more than a smaller heater.
With the rules and the spec sheets first, not the product names: (1) where it can legally go, under BS 7671 section 701 as set out by NICEIC, the IET and Electrical Safety First, read on 27 September 2026; (2) the IP rating each maker declares, or does not, on its own spec page, read on 25 August 2026; (3) real bathroom use, a short burst of heat rather than all-day heating; (4) running cost with the arithmetic shown, at Ofgem's price cap for October to December 2026; and (5) the declared safety features and controls. The four heaters are those, of the six in the Spanish edition of this guide, that have a listing on Amazon UK today; availability changes from country to country, and the buttons take you to the Amazon store of yours.
For the wall of a UK bathroom that has a socket 2.5 m from the water, we recommend the Cecotec Ready Warm 7000 Quartz Bath view ›: IP24 on its maker's page, a wall bracket and a pull chain, outside the zones as its manual allows. On a dry floor with the same socket, the Cecotec Ready Warm 6100 Ceramic Rotate view › or the Cecotec Ready Warm 9790 Force view › warm the room before the shower and go off before you get in. For a heater inside zone 2, the maker's instructions have to name that zone, and none of the four here does. And the sum worth remembering: a warm shower costs pennies, a forgotten heater costs pounds. Measure 0.6 m and 2.5 m from the edge of the bath or tray, read the IP in the maker's spec sheet, and buy for that spot.
m8d pick · on the wall, IP24, outside the zonesCecotec Ready Warm 7000 Quartz BathSee it on Amazon ›Portable · only with a socket 2.5 m from the bathCecotec Ready Warm 6100 Ceramic RotateSee it on Amazon ›The ones behind the specific figures on this page, with the date each was read.
- NICEICBathrooms and electrics: what you need to knowZones 0, 1 and 2 with their measurements, IPX7 and IPX4/5, sockets 2.5 m from the edge of the bath or shower tray, pull cords, and work within zones 0 to 2 as notifiable. Read on 27 September 2026.
- IET Wiring Matters, Geoff CronshawSection 701: Locations containing a bath or shower (PDF)Zone heights, the 1.2 m zone 1 of a shower without a tray, IPX4 in zones 1 and 2, no extra IP beyond zone 2, 30 mA RCD, fused connection units outside the zones and pull cords inside them. Written for the 17th Edition (BS 7671:2008), hence its 3 m socket distance. Read on 27 September 2026.
- Electrical Safety FirstElectrical safety advice for the bathroomSockets only at least 2.5 m from the edge of a bath or shower tray, RCD on all bathroom circuits, ceiling pull-cord switches. Read on 27 September 2026.
- Electrical Safety FirstAre you allowed to have a socket in the bathroom?The 2.5 m rule and the shaver supply unit exception. Read on 27 September 2026.
- Electrical Safety FirstElectrical safety advice for portable heatersNo extension leads for heaters, one metre from combustible materials, never unattended. Read on 27 September 2026.
- OfgemEnergy price cap unit rates and standing chargesElectricity at 26.32p per kWh from 1 October to 31 December 2026, Great Britain average, Direct Debit. Read on 27 September 2026.
- CecotecReady Warm 7000 Quartz Bath spec pageIP24 declared and «suitable for bathrooms», 1200 W quartz, wall bracket and pull chain. Read on 25 August and 27 September 2026.
- CecotecReady Warm 7000 Quartz Bath user manual (PDF)Plug into an earthed wall power outlet; do not place it immediately below a power socket; wall mounting with two screws; pull chain for 600 and 1200 W. No bathroom zone named. Read on 27 September 2026.
- CecotecReady Warm 6100 Ceramic Rotate spec page1500 W, three modes and protections; no IP rating declared. Read on 25 August 2026.
- CecotecReady Warm 9790 Force spec page2000 W, 900 g and 30 dB declared at full power; no IP rating. Read on 25 August 2026.
- OrbegozoSP 6000 spec pageIP22 declared as a bathroom model, PTC ceramic, daily and weekly programming. Read on 25 August 2026.
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