Oil column heaters remain Australia's favourite portable heating choice. Silent, safe, and effective they're the go-to for bedrooms and living areas. But with prices ranging from $70 to $500+, how do you choose?

How Oil Heaters Work
Every oil heater regardless of brand or price works identically: Electric element heats thermal oil → Hot oil circulates through fins naturally → Fins radiate warmth → Thermostat cycles element on/off. The oil is never consumed. It's a closed system that lasts for years.
What Affects Oil Heater Performance?
Wattage More watts = more heat output. Match to room size.
Fin count More fins = more surface area = better heat distribution.
Thermostat quality Good thermostats cycle smoothly. Cheap ones overshoot.
Timer 24-hour timers let you program heating schedules. Essential for efficiency.
Best Oil Heaters by Room Size
Small Rooms (Under 15m²)
Arlec 1000W 5 Fin Oil Column Heater (OCH205) Lower wattage perfectly matched to small volumes. Running cost roughly half of larger models. All safety features included. ~30c/hour.
Medium Room (15-25m²)
Arlec Black 1500W 7 Fin Oil Heater With 24 Hour Timer (OCH207TBK) The Goldilocks zone. 24-hour timer is essential at this size. Contemporary black finish. ~45c/hour.
Arlec 2000W 9 Fin Oil Heater With 24Hr Timer (OCH209TBK) 9 fins provide excellent heat distribution. Handles most standard rooms comfortably. ~60c/hour.
Large Room (25m²+)
Arlec 2400W 11 Fin Oil Heater With 24 Hour Timer (OCH211TBK) Maximum wattage and maximum fins. 11 columns of radiant heat means gentlest, most even warmth. ~72c/hour.
The Feature Checklist
| Feature | Wattage | Cost/Hour | 3hr Dinner |
| ROH312 | 2000W | 1500W | 2000W |
| ROH352 | 2000W | 7 | 9 |
| ROH403B | 2400W | ✓ | ✓ |
| ROH424HA | 3200W | ✓ | ✓ |
Price vs Performance Reality
Oil heaters range from under $100 to over $500. What do you get for the extra money?
At $70-150 (Arlec range): All essential features. Quality thermostats. Full safety certification. Reliable performance.
At $300-500+ (premium imports): Designer aesthetics. Premium finishes. Brand prestige. Similar core performance.
The heating element in a $400 oil heater produces exactly the same heat as the element in a $120 oil heater at the same wattage. Premium pricing buys aesthetics, not performance.

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