The size of a room an electric fireplace can heat will be determined by how powerful the fireplace is in terms of heating capability, and the type of heater the electric fireplace uses.

Electric fireplaces are sold stating how much area they can heat, in the units of square foot.

So how many square feet will an electric fireplace heat?

The amount of space an electric fireplace can heat will largely depend on the heater component used inside the fireplace. Electric fireplaces that use a conventional fan forced heater are typically able to heat areas up to 400sqft, while those with an infrared heater are typically able to heat areas up to 1000sqft.