8CHIMNEYOnly use approved chimneys of the same dimensions as the appliance exit. Therefore,you should use 6 inches diameter chimneys for your GRIZZLY Furnace. Chimneys mustbe tested upon the ULC S629 CSA, UL103 norms. The GRIZZLY Furnace woodappliance can be installed onto a masonry chimney following the ULC S635, ULC S640and the UL 1777 norms. Do not forget to plan a place for the sweeping of the chimney.When possible, it is preferable to avoid an outside chimney or built on an exterior wall,and this is even more important for colder areas. Outside chimneys generally have a lessefficient draught. They can even have an inverse draught because it is hard to heat themenough so that they can reach their operating temperature. A greater accumulation ofcreosote, a less efficient draught and a lesser performance are some characteristics of coldchimneys. Draught is proportional to the total chimney height as well as its temperature.It is therefore possible to get a better draught by increasing the chimney's height and byreducing the heat loss with an insulated lining. The chimney has to be installed with astainless steel lining. Make sure that all smoke pipe joints are really airtight. A leakreduces the efficiency of the appliance and could even make its utilization dangerous.INSTALLATIONA good installation is extremely important for a safe and efficient use of your J.A. RobyInc. appliance. If you doubt on the way to install the appliance correctly, seek forprofessional installation service. We suggest you to call masters fitters.Withdraw firebricks placed inside the appliance in order to reduce the weight and tofacilitate the installation.You must install a fireproof plate under the appliance, which must exceed of 18inches(46 cm) at the front and of 8 inches(20cm) at each side.The free space shall not be reduced except under the approval of the authoritiesresponsible for the application of the building code.Install the chimney and an insulated wall firebreak for an installation passing througha wall according to the instructions from the chimney manufacturer.Install the firebricks in accordance with the recommended instructions for yourmodel.The appliance should not be connected to an hot air conduct.