Contura 620 Style is equipped with heat retaining powerstone and a convection damper as standard. You can also select a further 20Kg powerstone for even better heat storage. this means that you get even mor heat out of your logs because the heat is retained in the stone. The model has a cast iron door only.
Contura 620T has a heat retaining soapstone surround. If you choose to cover, instead of the warming shelf above the door, you can also order powerstone, which means that you can extract more heat.