Description
ISI Certified, and Three Settings Instead of Two.
2600W · 9 Fins · PTC Fan · Thermostat.
A heater built for a long Delhi winter rather than a cold week · ISI certification — independently tested against Indian Standards, which is genuinely worth checking on any 2600W appliance you'll leave running overnight · three heat settings at 1400W, 2000W and 2600W rather than the usual two, so you can match output to the night and not overpay on a mild one · a PTC fan for fast initial warm-up, then 9 oil-filled fins carrying silent, even warmth that doesn't dry the air · thermostat control and overheat protection with automatic shut-off · castor wheels and cord storage · 220–240V · 1-year warranty
ISIindependently certified
An ISI mark isn't marketing — it means the product has been independently tested and certified against Bureau of Indian Standards requirements for safety, durability and performance. On a heater that draws 2600 watts and runs unattended for hours in a room where people are sleeping, that matters more than on almost any other appliance in the house. A great many room heaters sold each winter carry no such certification at all. If you're weighing this against a cheaper unit, the ISI mark is the difference you're paying for — and it's the first thing worth asking about on any heater, from us or anyone else.
Three settings, and why the middle one earns its place
Most oil heaters give you two settings — roughly half power and full — which means on a mild December evening you're either slightly cold or paying to run 2400 watts you don't need. The Sofr 9F offers 1400W, 2000W and 2600W. That middle setting is the one you'll actually use most: enough for a normal winter night without the full draw, and the difference between the low and high settings is nearly double the running cost per hour. Add thermostat control holding your set temperature — cycling the heater off once the room is warm and back on when it drops — and the machine spends far less time at full power than it first appears.
PTC fan first, then nine fins — speed and silence in one machine
An oil radiator's honest weakness is the wait: lovely gentle warmth, but twenty minutes before you feel it. The built-in PTC fan solves that by circulating hot air quickly at the start. PTC elements are worth knowing about — they're self-regulating, drawing less power as they get hotter, so they can't run away and overheat the way a bare coil can. Once the room is up, switch the fan off and the nine oil-filled fins carry the warmth silently, spreading it evenly across the room rather than heating one spot the way a halogen or coil heater does — and without drying out the air.
🎚️ Three settings for the whole season
1400W — Low
Gentle warmth for a mild evening or overnight, at the lowest running cost
2000W — Medium
The everyday setting for a normal Delhi winter night
2600W — High
Full output to bring a cold room up fast on a January morning
🏠 Right for
Bedrooms
Silent once warm, and it doesn't dry the air
Living Rooms
9 fins and 2600W for a larger space
Offices
No fan noise on a call once it's up to temperature
Apartments
220–240V, suitable for high-rise flats and homes alike
✨ At a glance
The oil inside is sealed permanently at the factory — never consumed, never topped up, never replaced. It's simply the medium that stores and radiates the heat, which is why oil radiators run for years with no maintenance beyond a wipe. Cord storage keeps the cable tidy when you pack it away in March.
Cuts power automatically if internal temperature climbs too far — the protection that matters most on a heater left running through the night.
The oil holds its heat after the thermostat cuts in, so the room stays comfortable through off-cycles rather than cooling the moment the element stops.
Roll it between rooms rather than lifting it — one heater can serve a whole flat through the season, and it's easy to store away afterwards.
A household name in India for well over a century, with service coverage and parts availability across Delhi NCR rather than a brand that vanishes after one winter.
| Brand / Model | Singer Sofr 9F · 9 Fin ✅ |
| Type | Oil Filled Radiator with PTC fan ✅ |
| Total Power | 2600 W ✅ |
| Heat Settings | 1400W / 2000W / 2600W ✅ |
| Fins | 9 ✅ |
| PTC Fan | Yes ✅ |
| Thermostat | Yes ✅ |
| Safety | Overheat protection with automatic shut-off ✅ |
| Certification | ISI certified ✅ |
| Voltage | 220–240 V ✅ |
| Mobility | Castor wheels ✅ |
| Cord Storage | Yes ✅ |
| Noise Level | Low / silent operation ✅ |
| Colour | Black ✅ |
| Warranty | 1 Year Domestic Warranty — electrical parts and components ✅ |
Why buy from Mahajan Electronics?
- 24-hour delivery across Delhi NCR
- GST invoice — save up to 18% on business purchases
- 45+ years of trust · 4.7★ Google rated
- 100% original brand-sealed product
- Easy returns and priority support
- Raja Garden · Jail Road · Dabri Mor
Order today. Delivered in 24 hours.
Singer Sofr 9F · 9-Fin Oil Filled Radiator · 2600W · 3 Heat Settings · PTC Fan · Thermostat · ISI Certified · Overheat Protection · Castor Wheels · Black
Image for reference only.
Please Note: The image shown is for reference purposes only. Actual product details, including the serial number and manufacturing date, may vary.
