MaintenanceSMOKE PIPE, CHIMNEY AND SECONDARYHEAT EXCHANGERDo not burn green or freshly felled wood. This maycause creosote and soot to build up in chimney,smoke pipe, and secondary heat exchanger. Theseshould be checked and cleaned several times eachheating season.CLEANING FURNACE AND CHIMNEY FLUEPIPESFrequently check and clean the furnace flue pipesand chimney. Soot and fly ash should not beallowed to build up on any of these surfaces.Chimneys are best cleaned professionally.Secondary Heat ExchangerEagle I - HuskySecondary Heat ExchangerEagle II - Polar42