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PRE-INSTALLATION CHECKS
1. FLUES
20
Model
Yeoman Devon 50
Yeoman County 60
Yeoman County 80
Yeoman Devon 50
Yeoman County 60
Yeoman County 80
Flue / Chimney Size
Without Liner System (round)
Diameter
mm 150 150 150
inch 6 6 6
Without Liner System (square)
Minimum Dimension
mm 135 135 135
inch 5½ 5½ 5½
With Liner or Factory Made System
(diameter)
mm 150 150 150
inch 6 6 6
Flue / Chimney minimum
height*
m 4.5 4.5 4.5
feet 15 15 15
* When measured from the top of the flue, with no horizontal sections and a maximum of 4 bends with angles of less than 45°