Starting in EnergyPro V7.1, at the System level of the Building Tree, Residential tab, simply check the Wood Stove checkbox.
To model a wood stove or fireplace in older versions, create a new system in the Central System Library. Set the System Type to Split DX, set the Heating Type to Gas Furnace, Central, with an AFUE of 0.78. Zero out the cooling and fans, put ducts in the attic under the Distribution.
← How do I model a wood stove or fireplace?