It is very likely that you might wish for something which efficiently warms up the entire room, much the same way as an air conditioner cools down the whole room. For this, you need not buy another costly electrical appliance but a simple accessory for the already existing fireplace. This accessory is called the fireplace blower.
You should also check the insert’s available features. Does it have doors that self-cleans and fans or blowers? Does it have a remote control that lets you adjust fire or heat intensity? These are great features to look for when searching for fireplace inserts. The pictures following are about fireplace insert blowers.