Gel fireplaces are said to be a more environment friendly option to homes where normal fireplaces cannot be installed due a variety of reasons including the lack of a proper ventilation system. Those who may already have existing fireplaces in their home can upgrade it into gel fireplaces.
It is something that can be done on your own or you can have a professional do it for you. You just need to close the existing gas or ventilation lines and have your fireplace redesigned into a gel fireplace. You can then purchase gel in canisters which you can light up every time you need to add warmth to your room.