Hi Wm,

The Lasko 758000 Cyclonic Ceramic Heater is rated at 1500 watts on the maximum setting i.e.

http://amzn.to/2mcVQrC

So is an oil filled radiator such as the DeLonghi TRD0715T Safeheat
http://amzn.to/2md3HFM

So in terms of electricity usage if you run them for the same time they will produce the same amount of heat for roughly the same cost. From what we understand a 1500 watt heater can be used to comfortably heat a 150 square foot room regardless of design. As mentioned in the review above space heaters should be used to complement an existing central heating system and not as a primary source of heat.

The key question is therefore which one is best for the space you want to use it in (size of the room, uses of the room, speed you need the room to heat up, how well the room is insulated etc.).

Oil filled radiators will take longer to heat up and will heat more evenly – they will also retain their heat for a longer period of time once they are switched off. Oil filled radiators with a thermostat mode (toggle on/off once they reach the required temperature) can be great if used in a bedroom overnight while sleeping.

Ceramic fan heaters will heat up a specific area faster (the area in which the fan is directing the heat) so the heat distribution will be patchy at first, but will eventually heat the whole room like an oil filled radiator (as long as the room is reasonably insulated). These are great if you get home from work and want to quickly heat the kitchen or living room – if you keep the central heating off all day and want to quickly heat up a specific room when you get home.

If the room is breezy or poorly insulated then efficiency is out the window anyway, so you might as well get a ceramic fan heater so you can at least feel some warm from the fan.

You might also want to consider factors such as safety (oil heaters are hot to the touch, while most ceramic heaters will stay cooler to the touch), noise (oil heaters are quieter then ceramic fan heaters) and durability.

Cheers Pierce