ACCESSORIES
System Accessory
Natural to LP Kit (See Table 16)
Return Air Base
Flush Mount Termination
(90% Furnaces Only) (US Only)
Concentric Vent Kit
(90% Furnaces Only) (US Only)
Concentric Vent Kit
(90% Furnaces Only) (Canada Only)
Twinning Kit
Note: For vent length and clearances to combustibles, please reference installation instructions.
Kit Number
11K50
11K45
68W62
68W63
51W11
71M80
69M29
60L46
44W92
44W93
16W72
Constant Torque Gas Furnace Twinning Kit
Page 6
Description
1-Stage
High Altitude 1-Stage
17.5" B Width
21.0" C Width
2" & 3" Vent Version
1-1/2" Vent Version
2" Vent Version
3" Vent Version
1-1/2" and 2" Vent Version
3" Vent Version
31-5000728 Rev. 0