Can a 2000 watt heater run on a 6A socket?

It should not. A 2,000 W heater draws about 8.7 A at 230 V, which overheats a 6A socket and its wiring over hours of use. Use a proper 16A socket point.

Is it safe to use a 6A to 16A converter plug for a heater?

No. The adapter only makes the plug fit; the current still passes through the 6A socket and its thinner wiring, which can overheat and melt.

Which wire is used for a 16A socket?

For a single 16A socket point in a home, 2.5 sq mm copper house wire with a 16A MCB is the usual practice. Your electrician should confirm it for the cable length and load.

Can I plug a room heater into an extension board?

Avoid it. Most multi-plug extension boards are not built for a heater running for hours, especially with other appliances plugged in. Plug the heater directly into a wall-mounted 16A socket.

Room heater socket 6A or 16A? Socket, wire and MCB guide for homes in Darjeeling, Kalimpong and Siliguri

Q: Why does my heater plug get hot?

Usually a loose or worn socket, loose terminal screws, the wrong 6A socket or thin wiring. Switch off at the MCB and have a licensed electrician check and fix the point.

Room heater socket: use a 16A socket on 2.5 sq mm copper wire with a 16A MCB. A 2,000 W heater draws about 9A, too much for a 6A socket or extension board.

For a room heater, use a 16A socket on its own 2.5 sq mm copper wire, protected by a 16A MCB. A normal 2,000 W heater draws close to 9 amps, which is more than a 6A socket, a cheap extension board or a 6A-to-16A adapter is built to carry for hours. If your plug or socket gets warm, brown or smells of burning, stop using it and get the point upgraded by a licensed electrician.

Winter nights in Darjeeling, Kurseong and Kalimpong are long and cold, and even Siliguri homes switch on a heater in December and January. The same advice applies to homes across North Bengal, Bihar and Sikkim. Here is what to check before the heater season, and what to ask for at the shop.

How many amps does a room heater take?

Look at the label on the heater. It shows the wattage (W). To get the current, divide the watts by the supply voltage (about 230 V in Indian homes).

Heater type (typical)	Typical wattage	Current at 230 V	Socket to use	Copper wire (typical)	MCB (typical)
Small fan heater, low setting	800–1,000 W	3.5–4.5 A	16A	2.5 sq mm	16A
Fan heater / halogen heater	1,200–1,500 W	5–6.5 A	16A	2.5 sq mm	16A
Fan heater, high setting / convector	2,000 W	about 8.7 A	16A	2.5 sq mm	16A
Oil-filled radiator (bigger models)	2,000–2,500 W	8.7–11 A	16A	2.5 sq mm	16A

The current figures are simple calculations (watts ÷ 230). The wire and MCB sizes are general trade practice for a single heater point in a home. Your electrician should confirm them for your wiring, the cable run length and what else shares the circuit.

Check your own model: some oil-filled radiators have extra fan or turbo settings that add to the load.

Can I run a room heater on a 6A socket or extension board?

No, not for regular use. A 6A socket is meant for light loads like a phone charger, TV, laptop or table lamp. A heater pulls current close to or above that rating continuously, for hours, every night. That is what overheats the contacts.

Common mistakes in winter:

Using a 6A-to-16A adapter. It lets the big plug fit, but the current still flows through the small 6A socket and its thin wiring.
Running the heater from a multi-plug extension board along with a kettle or iron. Most of these boards are not made for 2,000 W loads.
Forcing a 16A plug into a loose or old socket. Poor contact creates heat at the pins.
Cutting off the plug and pushing bare wires into the socket. Never do this.

The right fix is a proper 16A switch-socket point, not an adapter.

Which wire size for a room heater point?

For a single heater on a dedicated 16A point, 2.5 sq mm copper wire (phase, neutral and earth) is the usual choice in Indian homes. Ask for FR or FRLS PVC-insulated house wire made to IS 694.

Many older houses in the hills were wired with 1.5 sq mm wire to every socket. That is fine for lights and light-duty sockets, but not for a heater running all evening. If your heater socket is on 1.5 sq mm wire, ask your electrician to run a new 2.5 sq mm line from the DB.

For a full chart of which wire goes where, see our house wire size guide.

Which MCB for a room heater circuit?

A 16A MCB (B or C curve, made to IS/IEC 60898-1) is the usual protection for a 2.5 sq mm heater circuit. The MCB protects the wire. Do not fit a bigger MCB just because it keeps tripping; that hides the problem and lets the wire overheat.

Also make sure the house has a working 30 mA RCCB and proper earthing. Heaters are metal-bodied, often used near beds and curtains, and sometimes in damp rooms. The RCCB is what protects people from electric shock if there is a leakage. Press its test button once a month.

If you also use a geyser in winter, it needs its own circuit too. See which MCB for geyser.

Why does my heater plug get hot or the socket melt?

A plug that feels warm, turns brown, or smells of burning plastic is a warning. Usual reasons:

Wrong socket – a 6A socket carrying heater current.
Loose socket contacts – the springs inside old sockets lose their grip, so the pins touch only partly.
Loose wire screws behind the socket – a loose terminal heats up under load.
Thin wiring – 1.5 sq mm or old aluminium wiring on the heater point.
Cheap or fake sockets – thin brass and poor plastic.

Switch off at the MCB, stop using that point and call a licensed electrician. Replacing a blackened socket without fixing the cause will only melt the new one.

Which 16A socket should I buy for a heater?

Buy a branded, ISI-marked 16A switch-socket combination (a 16A socket with its own 16A switch), in the same modular range as the rest of your house. Indian plugs and sockets up to 16A are made to IS 1293.

What to look for:

16A rating printed on both the socket and the switch.
Shutter on the socket holes if there are children at home.
Indicator light so you can see when the heater point is on.
Brand you can match – Havells, Anchor, Legrand, Crabtree, Roma and Goldmedal all make 16A modules in their modular ranges.

Shree Shyam Suppliers supplies switches and sockets from these brands, and buying from a local authorised dealer means genuine stock and help matching the right module to your plate. See our switches and sockets page.

Does my room heater need an ISI mark?

Buy heaters that carry the ISI (Standard Mark). The government’s Safety of Household, Commercial and Similar Electrical Appliances (Quality Control) Order, 2026 requires a wide list of household appliances to conform to IS 302 (Part 1) and bear the Standard Mark under a BIS licence. It came into force on 1 October 2026 for larger manufacturers, with later dates for small (1 January 2027) and micro (1 April 2027) enterprises. Which exact product falls under which entry is for BIS to decide, so the simple rule is: check for the ISI mark on the heater and on the socket.

Heater safety tips for hill homes

Keep the heater at least a metre from beds, curtains, clothes and wooden panelling.
Never dry clothes on a heater.
Switch off at the socket before sleeping, unless the heater has a timer and tip-over cut-off.
In damp rooms, keep the heater and plug away from wet floors and windows with condensation.
Do not run the heater cord under a carpet or rug.
If power is low in the evening and the heater feels weak, do not “fix” it with a bigger fuse or MCB. Ask your electrician.

Installation of any new socket point, wire or MCB should always be done by a licensed electrician.

Ordering tip

Planning to add a heater point before winter? Send us on WhatsApp:

Number of 16A switch-sockets needed and your modular brand/range (or a photo of an existing switch plate)
Wire size and colours (for example, 2.5 sq mm red, black and green) and approximate length in metres
MCB rating, and whether you need an RCCB
Your site location

We will send an itemised quote, and Shree Shyam Suppliers can cut wire to the length you need. Delivery is available across North Bengal, West Bengal, Sikkim and Bihar.