A pellet insert is a great way to a convert an inefficient wood fireplace into a fantastic heat source. With automatic ignition it’s as easy as pushing a button. Also, when installed with a thermostat option the appliance works just like a furnace—turning the unit up and down or on and off when the house needs additional heat. Pellet fuel pricing has been one of the most consistently low heating fuel options available over the past 15 years. It is easy to store and each appliance will run for an average of 12 to 30 hours on one bag.