Figure 12
Thermal Lift
Thermal lift when
flue gas temp 80C and outside temp 10C
0
20
40
60
80
100
120
140
160
180
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
Flue lengths ~ metres
Draught ~ Pa
Uninsulated Flue
Insulated Flue
Thermal lift is generated naturally in the vertical part of a flue system, reducing the overall
resistance of the system.
The available lift may be calculated from the Thermal lift graph and deducted from the total
calculated flue resistance.
17.2
Available Flue Components
80/125 Concentric 500 mm Fanned Flue Kit
80/125 1000mm length PPS/White Galvanised Concentric Flue
80/125 500mm length PPS/White Galvanised Concentric Flue
80/125 PPS/White Galvanised 90 degree elbow
80/125 PPS/White Galvanised 45 degree elbow
80mm 1000mm PPS flue pipe
80mm PPS 45 degree PPS Elbow
80mm PPS 45 degree connector
80/125 Roof Terminal
Pitched roof tile flashing
Aluminium flat roof terminal/chimney top flashing
80mm Wall Fixing Clamp
125mm Wall Fixing Clamp
80mm PPS flexible flue liner (per metre)
80mm PPS flexible flue liner 360-degree spacers
80mm PPS flexible flue liner chimney terminal
80mm PPS flexible flue liner chimney terminal clamp
80mm PPS flexible flue liner boiler flue connector
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eco hometec (uk) ltd.
