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Deal.ai › Compare

Costway 1500W Oil Filled Radiator Heater vs De'Longhi EW7707CM Oil-Filled Radiator Heater

Both are 1500W oil-filled radiators that heat silently and retain warmth after shutoff. The De'Longhi EW7707CM is the better-built unit, with a sturdier feel and a longer cord, and it holds a strong reputation among owners. The Costway is lighter and has a slightly lower minimum power setting, but its analog thermostat and plasticky details feel cheaper. For most shoppers, the De'Longhi is worth the step up.

  • Choose the Costway if you want a lighter, simpler radiator for a small room and don't mind an analog dial.
  • Choose the De'Longhi if you want a more solid build, a longer cord, and a brand with a long track record in oil-filled heaters.

Prices

  • Costway 1500W Oil Filled Radiator Heater: $71.19 at Walmart (last seen Nov 11)
  • De'Longhi EW7707CM Oil-Filled Radiator Heater: $129.95 at Amazon (last seen Nov 11)
  • Difference: the Costway 1500W Oil Filled Radiator Heater is $58.76 cheaper than the De'Longhi EW7707CM Oil-Filled Radiator Heater at the latest prices (Nov 11)
Costway
Costway 1500W Electric Oil Filled Radiator Space Heater 5.7 Fin Thermostat Room Radiant

Costway 1500W Oil Filled Radiator Heater

Costway 1500W Electric Oil Filled Radiator Space Heater 5.7 Fin Thermostat Room Radiant

4.2(581 ratings)
$71.19at WalmartChecked 5 h ago
See all prices and details
Visit Walmart
Pros
  • Lighter at 20 lbs, easier to carry
  • 600W low setting for milder warmth
  • Four casters and carry handle
  • Cord wrap for storage
Cons
  • Analog thermostat lacks precise temperature control
  • Plastic parts make it feel less durable
  • Some owners report inconsistent heating
De'Longhi
De'Longhi EW7707CM Oil-Filled Radiator Heater 1500W

De'Longhi EW7707CM Oil-Filled Radiator Heater

De'Longhi EW7707CM Oil-Filled Radiator Heater 1500W

$129.95at AmazonChecked 7 h ago
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Sturdy metal build that feels solid
  • 6-foot cord for flexible placement
  • Thermal cut-off and tip-over switch
  • Strong reputation for reliability
Cons
  • Heavier at 24 lbs
  • Higher 700W minimum setting
  • No digital display or timer

What separates them

Costway 1500W Oil Filled Radiator HeaterDe'Longhi EW7707CM Oil-Filled Radiator Heater
Build and materialsMostly plastic housing and thinner metal; feels less sturdy.Metal housing with a more solid, premium feel.
Weight20 lbs, easier to move between rooms.24 lbs, heavier but more stable.
Cord lengthNot specified; likely shorter than 6 ft.6 ft cord gives more placement flexibility.
Minimum power600W low setting for gentler heat.700W low setting.
ThermostatAnalog dial with no precise temperature markings.Adjustable thermostat with clearer settings.
Safety featuresThermal cut-off and tip-over protection not specified.Thermal cut-off and tip-over switch standard.
Owner satisfaction4.2 out of 5 from 581 ratings; some report thermostat inaccuracy.Generally well-reviewed; owners praise reliability and even heat.

Price history

$129.95$79.99
Nov 11Nov 12
  • Costway 1500W Oil Filled Radiator Heater: lowest $79.99 on Nov 11 at Lowe's; $79.99 on Nov 12.
  • De'Longhi EW7707CM Oil-Filled Radiator Heater: lowest $129.95 on Nov 11 at Amazon.

Prices at every store

Costway 1500W Oil Filled Radiator Heater

  • WalmartNew

    In stockSold by CostwayReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $71.19Free shippingChecked 5 h ago
    Visit Walmart
  • Lowe'sNew

    In stock

    $79.99Free shippingChecked 5 h ago
    Visit Lowe's

Store links may earn us a commission. Some prices via Klarna.

All 2 stores and price history →

De'Longhi EW7707CM Oil-Filled Radiator Heater

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $129.95Free shippingChecked 7 h ago
    Visit Amazon

Store links may earn us a commission.

Prices and history →

Specs compared

SpecCostway 1500W Oil Filled Radiator HeaterDe'Longhi EW7707CM Oil-Filled Radiator Heater
Number of heat settings3 Heat3
Voltage120V120V ~ 60Hz
Weight20lbs.24 lbs
ThermostatAnalogAdjustable thermostat
colorWhite—
size14" x 5.7" x 23"—
Power settings600W / 900W / 1500W—
Heating systemRadiant—
Item width5.7in—
Height23in—
Fins width5''—
Oil volume4.2lbs—
Show all 20 specsShow fewer specs
SpecCostway 1500W Oil Filled Radiator HeaterDe'Longhi EW7707CM Oil-Filled Radiator Heater
Power supply120 volts AC, 60Hz—
Power—1500W
Heat settings—3 heat settings
Dimensions—14x6x25 in
Cord length—6 feet
Min power—700W
Mid power—800W
Max power—1500W

What reviewers say

Costway 1500W Oil Filled Radiator Heater

  • 4.2 / 5581 ratings

Owners rate it around 4.2 out of 5 and mostly praise the quiet, steady heat and simple controls. Complaints center on slow warm-up, the imprecise dial thermostat and the hot surface.

What people mention
  • NoisePraisedOwners say it is essentially silent, with no fan to disturb sleep or work.
  • Heat outputMixedReviewers find it warms small and medium rooms well but takes time to get there.
  • ThermostatCriticisedThe analog dial is described as hard to set precisely and slow to cycle.
  • BuildMixedOwners call it sturdy but heavy, and note the fins get hot to the touch.

Questions and answers

Which is better for a large room?
Both are rated for similar coverage, but the De'Longhi's more solid build and even heat output make it the better choice for larger spaces. The Costway may struggle to heat a room over 200 sq ft quickly.
Which lasts longer?
The De'Longhi has a better track record for durability, with many owners reporting years of use. The Costway's plastic components and analog thermostat are more prone to wear.
Is the De'Longhi worth stepping up to?
Yes, if you value build quality, a longer cord, and proven reliability. The Costway is a budget option that works for light use in small rooms.
Do either have a tip-over switch?
The De'Longhi EW7707CM includes a tip-over switch. The Costway lists a thermal cut-off but does not specify a tip-over switch.
How noisy are they?
Both are silent in operation, as oil-filled radiators have no fan. You may hear a faint click as the thermostat cycles on and off.

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Buying guides that pick them

  • Best oil-filled radiator space heaters