The cheapest DeLonghi oil-filled radiator typically starts around $80, offering efficient heating for small to medium-sized rooms with energy-saving features.
DeLonghi oil-filled radiators provide silent, efficient heating at affordable prices. These units maintain warmth longer than standard space heaters while using less electricity. We’ve identified the top budget models that deliver premium performance without breaking the bank.

Why Choose DeLonghi Oil Filled Radiators?
DeLonghi’s oil-filled heaters stand out for their:
- Silent operation with no fan noise
- Energy-efficient radiant heat
- Long-lasting warmth after shutoff
- Easy mobility with built-in casters
How Oil Filled Radiators Work
These heaters contain diathermic oil that never needs replacing. The oil heats internally, then radiates warmth through metal fins. Unlike smart heaters with app control, they provide simple, reliable heating without complex technology.

Top Affordable DeLonghi Models
1. De’Longhi TRD40615T (~$80)
This 1500W unit covers up to 150 sq ft. Key features:
Spec | Detail |
---|---|
Heat Settings | 3 (600W/900W/1500W) |
Thermostat | Adjustable |
Safety | Overheat protection |
2. De’Longhi TRRS0920 (~$90)
With a unique chimney design, this model heats rooms up to 60m³ faster than standard radiators. The special coil fins improve heat distribution.
3. De’Longhi TRD41025 Dragon 4 (~$95)
The premium budget option features:
- 75m³ coverage
- Patented thermal slots
- 24-hour programmable timer
Key Buying Considerations
Room Size Matching
Match heater capacity to your space:
- Small rooms (100-150 sq ft): TRD40615T
- Medium rooms (150-250 sq ft): TRRS0920
- Large rooms (250+ sq ft): TRD41025
Energy Efficiency
All DeLonghi oil radiators are energy efficient, but the TRD41025 scores highest in independent tests. Its thermal slots reduce energy waste by 15% compared to basic models.
Maintenance Tips
Keep your heater performing optimally:
- Wipe fins monthly with dry cloth
- Check cord regularly for damage
- Store upright during offseason
- Never cover during operation
Where to Buy
Find the best deals at:
- Home Depot (often has open-box discounts)
- Amazon (watch for seasonal sales)
Warranty Information
DeLonghi offers 1-year limited warranties on all oil-filled radiators. Register your product online for fastest service claims.