An electric fireplace runs on electricity, which is less expensive as compared to fuel and gas both. The heat is adjustable and can be set accordingly. This benefit was never available in traditional style as there was little control over how the fire looks. The fireplace is not heated up after usage, which reduces the chances of getting burnt accidentally. Especially with small children and pets, this is a significant advantage.
Electric fireplaces are easy to maintain and do not require lots of cleaning. They don't produce ash and waste and are relatively maintenance free. Smoke and ash can also be hazardous to the health therefore these electric units are very favorable in houses with old people and small children.