Janesville firefighters are looking into the cause of a wood burner fire at a home on the city’s south side.  Firefighters were called to a home in the 2200 block of Adel Street just after 1:00 a.m. Monday.  The fire was contained to a first floor room in the back of the home.  Firefighters did have to peel off ply-wood and siding in the area of the fire.  No one was reported hurt.