Model MA-100 Universal Bases are designed for use with all CMF furnaces and select other manufacturer furnaces. The 903450 MA-100 Universal Base Kit features an 8" feeder duct. Please Note: Ducted applications require a Direct Vent System. Non-ducted applications do not require a Direct Vent System. Both ducted and non-ducted Installations require flue products to be exhausted by an Intertherm SRJ Roof Jack or existing chimney.
MA-200 bases are designed for use with all CMF furnaces
The 903450 MA-100 Universal Base Kit features an 8" feeder duct
Ducted applications require a Direct Vent System
Non-ducted applications do not require a Direct Vent System
Both ducted and non-ducted Installations require flue products to be exhausted by an Intertherm SRJ Roof Jack or existing chimney