Fireplace insert

A fireplace insert is a device that can be inserted into an existing masonry or prefabricated wood fireplace. Most fireplace inserts are made from cast iron or steel. Fresh air enters through vents below the insert, where it then circulates around the main chamber. The hot air then exits through a chimney. Typical fireplace inserts have insulated glass doors that allow the fire to be viewed while closed, improving its heat output and fuel efficiency. Air is directed across the interior surface of the glass to prevent a build-up of ash.

This custom-fitted fireplace insert has large glass doors to maximize the view of the fireplace, and a large surface area heat exchange with thermostat-controlled fan-forced air.

Fireplace inserts are categorized primarily by the type of fuel used (natural gas, propane, EPA-certified wood, pellet, coal or electric).

History

The fireplace insert was invented in 1742 by Benjamin Franklin, which he called 'The Pennsylvania Fireplace', in the United States. He came upon the idea as a means of using coke (a smokeless fuel made by the destructive distillation of certain types of coal) and incorporated the use of an electric blower to improve efficiency.

Electric fireplace inserts

Electric fireplace inserts are made to fit any size of a brick or steel-covered hearth. Plug-in electric fireplace inserts typically connect to a common 120-volt wall plug and are placed within an existing fireplace.

Electric fireplace inserts come in three form factors:

• Electric log inserts (which imitate a natural wood flame)
• Plug-in inserts
• Built-in units

See also

• Stove
• Wood-burning stove