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4 Best Delonghi Oil Heaters 2025 in the United States

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Our Top Picks

#1

Winner

De'Longhi Dragon Digital Oil Filled Radiator Heater, 1500W Electric Space Heater for indoor use, programmable timer, Energy Saving, full room heater with safety features TRD40615E

Rating
9.9
Chosen by1,139
Heating Power (Wattage)
Thermostat Control
Safety Features

Most important from
5763 reviews

Heating Power (Wattage)
Despite being rated for smaller spaces, it effectively heats large rooms, keeping them warm and comfortable.
Thermostat Control
The digital thermostat and power settings are user-friendly and allow precise temperature control.
Safety Features
The design is safe for households with children and pets, with outer metal that distributes heat without being dangerously hot.
Portability
The heater is easy to move around thanks to its integrated handles and wheels.
Noise Level
Build quality is excellent, and the heater operates quietly, ideal for light sleepers.
Additional Features
The heater is extremely intuitive, convenient, and powerful, making it perfect for drafty rooms.

The De'Longhi Dragon Digital Oil Filled Radiator Heater is a solid choice for anyone seeking an efficient and quiet heating solution for small to medium indoor spaces. With a powerful 1500W heating capacity, it offers quick and effective warmth, making it suitable for bedrooms, home offices, and studies. One of its standout features is the digital control panel with a 24-hour programmable timer, allowing users to easily customize their heating schedule, which is a great energy-saving feature. The ECO Plus function also optimizes energy consumption, further enhancing its efficiency.

In terms of design, the heater boasts a unique structure that provides 75% more radiant surface area compared to previous models, enhancing its heat distribution. Additionally, with no fan involved, it minimizes the movement of dust and allergens, creating a more comfortable breathing environment for allergy sufferers.

Portability is another strong suit; the integrated handles and Smart Snap wheels allow for easy relocation throughout your home without installation hassle. It’s built with safety in mind, featuring a thermal cut-off and an anti-freeze setting that activates when temperatures drop too low. However, the unit is relatively heavy at 26.6 pounds, which may impact mobility for some users, despite its ergonomic design. While the heater is designed for quiet operation, there may still be some noise when it heats up, which could be an issue in very quiet environments. Its coverage is limited to small to medium spaces, so it may not effectively heat larger rooms.

Rating
9.9
Chosen by1,139
Heating Power (Wattage)
Thermostat Control
Safety Features

Most important from
5763 reviews

Heating Power (Wattage)
Despite being rated for smaller spaces, it effectively heats large rooms, keeping them warm and comfortable.
Thermostat Control
The digital thermostat and power settings are user-friendly and allow precise temperature control.
Safety Features
The design is safe for households with children and pets, with outer metal that distributes heat without being dangerously hot.
Portability
The heater is easy to move around thanks to its integrated handles and wheels.
Noise Level
Build quality is excellent, and the heater operates quietly, ideal for light sleepers.
Additional Features
The heater is extremely intuitive, convenient, and powerful, making it perfect for drafty rooms.
#2

De'Longhi Oil filled Radiator Heater, 1500W Electric Space Heater for indoor use, portable room heater, Energy Saving, full room like office and bedroom with safety features, EW7707CM

Rating
9.8
Heating Power (Wattage)
Safety Features
Portability

Most important from
12701 reviews

Heating Power (Wattage)
A lifesaver during peak winter, efficiently heating small rooms for hours even after being turned off.
Safety Features
Oil-filled radiators are safer compared to ceramic heaters, thanks to their temperature detection and auto-shutoff features.
Portability
Easy to move around with integrated handle and wheels, enhancing portability.
Noise Level
Compact, quiet and gentle heat that warms a room effectively.

The De'Longhi Oil Filled Radiator Heater (EW7707CM) is a solid choice for anyone looking to heat small to medium indoor spaces like bedrooms and home offices. With a powerful 1500 watts, it effectively warms up areas while being quiet, making it suitable for use during the night or in close quarters without causing disturbances. Its ComfortTemp feature enhances energy efficiency by automatically maintaining optimal temperature settings, which can lead to lower energy bills over time.

One of the standout features is its safety elements, including thermal cut-off and an anti-freeze setting for cold conditions—ideal for those living in colder climates. The heater's unique design maximizes heat flow while keeping the surface temperature low, which helps prevent burns and makes it a safer option for homes with children or pets.

Portability is another strong point; it comes with an integrated handle and smart snap wheels, making it easy to move from one room to another without hassle. The heater is low maintenance due to its durable construction, which includes a permanently sealed oil reservoir that never needs refilling. While it is effective for small to medium spaces, it may not be powerful enough for larger rooms. Some may find it takes a while to warm up a space fully, and as it operates quietly without a fan, those expecting faster heating might need to adjust their expectations. The design is somewhat bulky and may not blend seamlessly with every home decor.

Rating
9.8
Heating Power (Wattage)
Safety Features
Portability

Most important from
12701 reviews

Heating Power (Wattage)
A lifesaver during peak winter, efficiently heating small rooms for hours even after being turned off.
Safety Features
Oil-filled radiators are safer compared to ceramic heaters, thanks to their temperature detection and auto-shutoff features.
Portability
Easy to move around with integrated handle and wheels, enhancing portability.
Noise Level
Compact, quiet and gentle heat that warms a room effectively.
#3

DeLonghi Radia S Oil-Filled Radiator Space Heater, Full Room Quiet 1500W, Adjustable Thermostat, 3 Heat Settings, Digital Timer, ECO Energy Saving Mode, Safety Features, Light Gray, TRRS0715E

Rating
9.6
Thermostat Control
Timer Function
Safety Features

Most important from
1723 reviews

Thermostat Control
Even after over a year of use, the heater continues to perform efficiently, maintaining a steady temperature with minimal noise.
Timer Function
The adjustable temperature setting and timer work well, providing gentle, radiant heat that ensures a cozy sleep.
Safety Features
The DeLonghi oil-filled heater is impressively quiet and safe, making it perfect for maintaining a peaceful environment.
Portability
The thoughtful design includes features like a 24-hour timer, an anti-frost function, and convenient wheels for easy mobility.
Noise Level
The DeLonghi oil-filled heater is impressively quiet and safe, making it perfect for maintaining a peaceful environment.
Additional Features
Its ECO function effectively modulates heat output and energy use, saving money while keeping rooms comfortably warm.

The DeLonghi Radia S Oil-Filled Radiator Space Heater is a powerful and quiet heating solution designed for small to medium-sized rooms. With 1500 watts of heating power, it provides consistent warmth without the noise of a fan, making it ideal for maintaining a peaceful environment. The adjustable thermostat and three heat settings allow for customization based on your comfort needs, while the ECO function helps save energy by optimizing the heat and power settings.

The digital control panel with an LED display and a 24-hour timer adds convenience, making it easy to operate and schedule heating times. Safety features such as a child lock, thermal cut-off function, and anti-freeze setting provide added peace of mind, particularly for households with children or in colder climates. The radiator's patented smart-snap wheels enhance its portability, allowing you to move it effortlessly between rooms without assembly hassle.

Additionally, the permanently sealed oil reservoir ensures long-lasting operation with no need for refilling. The heater performs well in terms of quiet operation and energy efficiency, although its form factor might be slightly bulky for smaller spaces. For those needing a reliable, safe, and user-friendly heater for medium to large rooms, the DeLonghi Radia S is a strong contender.

Rating
9.6
Thermostat Control
Timer Function
Safety Features

Most important from
1723 reviews

Thermostat Control
Even after over a year of use, the heater continues to perform efficiently, maintaining a steady temperature with minimal noise.
Timer Function
The adjustable temperature setting and timer work well, providing gentle, radiant heat that ensures a cozy sleep.
Safety Features
The DeLonghi oil-filled heater is impressively quiet and safe, making it perfect for maintaining a peaceful environment.
Portability
The thoughtful design includes features like a 24-hour timer, an anti-frost function, and convenient wheels for easy mobility.
Noise Level
The DeLonghi oil-filled heater is impressively quiet and safe, making it perfect for maintaining a peaceful environment.
Additional Features
Its ECO function effectively modulates heat output and energy use, saving money while keeping rooms comfortably warm.

Buying Guide for the Best Delonghi Oil Heaters

When choosing a DeLonghi oil heater, it's important to consider several key specifications to ensure you select the best model for your needs. Oil heaters are a great option for providing consistent and efficient heat, but the right model for you will depend on factors like the size of the space you need to heat, your desired level of control, and any additional features that might enhance your comfort and convenience.
Heating Power (Wattage)Heating power, measured in watts, determines how much heat the oil heater can produce. This is crucial because it directly affects the heater's ability to warm up a room. Generally, higher wattage means more heat output. For small rooms or spaces up to 150 square feet, a heater with 500-1000 watts is usually sufficient. For medium-sized rooms up to 300 square feet, look for models with 1000-1500 watts. For larger spaces, you might need a heater with 1500-2000 watts or more. Choose a heater with the appropriate wattage based on the size of the area you need to heat.
Thermostat ControlA thermostat control allows you to set and maintain a desired temperature, which helps in achieving consistent comfort and energy efficiency. This feature is important because it prevents the room from becoming too hot or too cold. Basic models may have manual thermostats with simple dial controls, while more advanced models offer digital thermostats with precise temperature settings. If you prefer ease of use and precise control, opt for a model with a digital thermostat.
Timer FunctionA timer function lets you program the heater to turn on or off at specific times, providing convenience and energy savings. This is particularly useful if you want the heater to start warming up a room before you wake up or come home. Basic timers may offer simple on/off settings, while more advanced models provide programmable timers with multiple settings. If you have a regular schedule and want to optimize energy use, look for a heater with a programmable timer.
Safety FeaturesSafety features are essential to prevent accidents and ensure safe operation. Important safety features include overheat protection, which automatically shuts off the heater if it gets too hot, and tip-over protection, which turns off the heater if it is knocked over. Some models also have cool-touch surfaces to prevent burns. If safety is a top priority, especially in homes with children or pets, choose a model with comprehensive safety features.
PortabilityPortability refers to how easy it is to move the heater from one room to another. This is important if you plan to use the heater in different areas of your home. Look for features like wheels, handles, and a lightweight design to make transportation easier. If you need a heater that can be easily moved around, prioritize models with good portability features.
Noise LevelNoise level is an important consideration if you plan to use the heater in a bedroom, office, or any other quiet space. Oil heaters are generally quieter than other types of heaters, but some models may still produce a noticeable hum or clicking sound. If a quiet environment is important to you, look for models that are specifically designed to operate silently or have low noise levels.
Additional FeaturesAdditional features can enhance the functionality and convenience of your oil heater. These may include remote controls, which allow you to adjust settings from a distance, and eco modes, which optimize energy use for greater efficiency. Some models also offer built-in humidifiers or air purifiers. Consider which additional features would be most beneficial for your needs and choose a model that includes them.

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