Quite simply - oil filled, gel filled and dry electric radiators are all electrically efficient, but may be more appropriate for your installation depending on your specific requirements and the size of the room that needs heating.
Dry heaters are designed to heat up both quickly and efficiently whilst you are in the room, ensuring that no heat energy is wasted when you do not require it. An Oil or Gel filled heater on the other hand will take longer to heat up and release heat into a room, but will heat your room for longer even after being turned off as that retained heat is dispersed slower.
Oil filled radiators are also deemed to be safer than a dry electric radiator as air flow to dry radiators can be affected by dust - therefore they can overheat and can be hot to the touch for children and pets in comparison to an oil filled radiator. There are specific low surface temperature electric radiators available for dry technology, although these are not widely available – they are a fantastic option for those who prefer the dry technology electric radiator.
Gel filled radiator is very similar to the oil filled radiator, but uses a thermodynamic gel compound as an alternative to oil for heat diffusion around the internals of the radiators metal construction.
Please see our Which Electric Radiator should I choose? Gel filled? Oil filled? or Dry? article for further information.
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