s6-in 76/60s[6]in Innovation through design & experience. The s6 in is a wood burning insert suited to small spaces while offering a generous view of the fire. It is perfect for masonry hearths and for wood fire enthusiasts. The fire at the front line Stv 6 in units offer a breathtaking view of the fire. The combustion chamber widens toward the front to reach the streamlined door frame. This shape, unique to Stv 6 in, has made it possible to reduce the insert