Pros: Quiet, reliable, maintenance free, inexpensive.
Cons: Takes a while to heat up. Tips over when trying to roll the unit.
I've had my Pelonis oil filled radiator heater for about 1.5 years now. I have had no problems with this heater whatsoever. It does exactly what it is supposed to do without fuss or complications.
This heater is an oil filled radiator, which is a bit different from the typical fan-forced space heater. It's important to recognize the differences in the functionality of an oil filled heater versus a fan-forced heater, and determine which is the right product for your needs.
First, an oil filled radiator takes quite a while to heat up, whereas a fan-forced heater produces heat almost instantly. I find that this heater takes at least a half-hour to begin to significantly warm up a room, depending on the size of room. For this reason, an oil filled radiator is not ideal for shower situations, as you will probably be finished with your shower before this unit is producing any significant heat.
The second major difference is noise: A radiator heater is almost completely quiet, whereas a fan-forced space heater is usually quite noisy due to the turning of the fan. This make a radiator a perfect choice for bedrooms where you will leave the heat running through the night. The only noise you may hear from a radiator heater is some occasional creaking noises, and the clicking of the thermostat.
This heater is a couple feet tall and kind of heavy, so it comes with wheels that must be installed when you unpack it. The wheels were easy to install, although they do not roll very well and the heater tends to catch on things and try to tip over when you roll it.
The power cord has a two-pronged polarity plug, is roughly 6 feet long, and the unit has a cord wrap for moving or storage.
How it works:
An oil filled radiator contains a viscous liquid substance in the radiator fins, which is heated by electric elements. If you shake the heater slightly, you can hear the liquid swishing around inside. This liquid will circulate through the heater somewhat as it is warmed and cooled, which creates the quiet creaking or swishing sound that you will sometimes hear as it is operating. The fins on the radiator will become very warm, but should not become hot enough to create a fire hazard or burn you, unless you are extremely sensitive to such things.
This heater has 2 adjustments. The first is a knob with 4 settings: off-low-medium-high. This controls how much electricity the heater uses. The higher the setting, the faster it will warm the room. I typically set the heater to "high" when I first turn it on, to allow it to come up to temperature quickly. Then I reduce it to "low" after the room has warmed up to maintain a consistent temperature.
The second setting is a thermostat adjustment. The electric heating element in this unit will cycle on and off periodically to maintain a consistent temperature. The thermostat setting determines how often the electric element is on, and therefore it determines the temperature that the heater will maintain in the room. The thermostat is not marked in degrees, it is simply marked with "Min" on one end and "Max" on the other end, so you may have to experiment somewhat to get the room temperature you desire. The thermostat on this heater works extremely well. Some space heaters are so cheaply made that their thermostat setting really isn't sensitive enough to cycle the heat on and off properly to maintain a consistent temperature. This heater has an excellent thermostat that works exactly as it should.
Oil filled radiators have several safety advantages over fan-forced space heaters. The fins on an oil filled radiator will become quite warm, but they do not become hot enough to constitute a fire hazard even if they are accidentally placed against some fabric like a curtain or blanket. This also means that if they tip over they should not damage carpeting or flooring.
While the radiator fins do become very warm to the touch, they won't really burn you. On the "high" setting, the fins become hot enough that a child who touches one will remember not to do so in the future, without causing any actual injury.
This heater has a built-in overheat protection switch, which means that if a large towel or blanket is thrown over the heater, blocking the flow of air, the overheat switch will engage and shut the unit off.
One thing I really like about oil radiators is that they have no filters or fans to clog with dust and pet hair. I have several fan-forced heaters, and I frequently have to clean their filters (or heating elements if they don't have a filter) to keep the air flowing properly through them. In contrast, my oil-filled radiator has been completely maintenance free.
I purchased my Pelonis oil filled radiator for a great price during an end of winter clearance sale, and I can say that of the several space heaters I own, this one provides by far the best value for the money. It is safe, quiet, reliable, and heats very consistently. Just remember that this type of heater takes a while to warm up a room, so use it accordingly. It is great for bedrooms, studies, and other small rooms. It is not ideal for bath/shower areas as it takes too long to heat up.