Every fireplace needs a screen

WOOD FIRES 
When burning an open wood fire, the screen's primary purpose is to contain sparks. The best spark protection is provided by either a flat screen or a one-piece bowed screen as either is more effective against spark shooting out over the top of a screen as can happen with a folding screen. This type of screen is also safer around children and pets than a folding screen which is more likely to fall over if leaned against or if a child falls against it.

GAS LOGS
It may at first seem silly to require a screen in front of a gas log set. However, a screen is required to prevent against a woman's dress or robe from being sucked into the fire due to the drafting of the chimney. If you don't have children or pets in the  house then a folding screen will work for this purpose

WOOD STOVES
Freestanding wood stoves or wood burning hearth stoves should have a screen around them to protect little hands and pets from being burned. 

3 Fold Fireplace Screen, 3 sizes From $389.00	3 Fold Arched Screen, 2 sizes From $399.00	Flat Black Panel Screen $299.00	Classic Arch Flat Screen $249.00
Oak Fireplace Screen $359.00	Colonial Spark Guard $199.00	Traditional Spark Guard, 4 Sizes From $369.00	Vintage Iron Spark Guard, 4 sizes From $329.00
Stove Guard Screen $329.00	Handle $1.00