Vantage Hearth Value Line Series 42 Inch Non-Circulating Smooth Faced Wood Burning Fireplace with Full Insulation

Answer:

An insulated unit is recommended when installing on an exterior wall. The insulation prevents cold air from entering through the fireplace when it is not in use. The available glass doors for either unit can be found by clicking the Accessories tab from each unit's item page. The outside air kit for these units can be found by clicking the below link.

http://www.efireplacestore.com/fsd-ak4.html

Answer:

A fully insulated firebox is recommended for installation on an exterior, non-insulated wall. This type of firebox is insulated to prevent cold outdoor temperatures from entering the room.

An ember protector is simply a metal strip, 28 gauge or thicker, that is installed beneath the front edge of the firebox. It must extend beneath the firebox at least 1 1/2". It should also extend beneath the hearth extension in front of the firebox. It serves to prevent any embers from falling through the gap between the front of the firebox and the hearth extension and damaging the floor beneath. A standard flat ember protector will be included with the firebox.