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Your Drolet insert will attain its best performance if installed with a chimney that generates its own draft. The minimum requirement of a flue will be the installation of a flue connector (the liner must conform to UL1777 chimney liners) from the insert into the first flue tile of the chimney (USA), see Figure 2.3 , or a continuous stainless steel liner (the liner must conform to the Class 3 requirements of CAN/ULC-S635) directly connected to the flue outlet (Canada), see Figure 2.2. A continuo