A rule of thumb for determining how much chimney you need for proper woodstove performance is…
Most manufacturers recommend annual service on all gas fired appliances and in some cases will void the warranty for lack of service. Regular maintenance can provide for better efficiency and prevent premature failure, both of which can result in substantial cost savings to the homeowner.
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Chimney systems by code need to be installed once a transition through a combustible (roof or wall) is required. Once the transition to chimney is made the chimney system must be completed through to termination (chimney cap). As well, an insulated chimney serves two purposes; one is to insulate the flue gases from combustibles and second is to keep the flue gases as warm as possible. If an un-insulated pipe is fixed atop a proper chimney the warm gas are prematurely cooled and can result in poor draft and excessive creosote.
