Do you have a question about the Lennox G43UF and is the answer not in the manual?
Heating Stages | Single-stage |
---|---|
Blower Motor | PSC |
Ignition System | Hot Surface Ignition |
Gas Valve | Single-stage |
Cabinet Width | 17.5 inches |
Fuel Type | Natural Gas or Propane |
Cabinet Type | Upflow/Horizontal |
Ignition Type | Hot Surface Ignition |
Heating Capacity | 44, 000-132, 000 BTUH |
Warranty | 5-Year Limited Warranty on covered components |
Details limited warranty for heat exchanger and other components.
Lists certifications and standards met by the units.
Describes unit capabilities, cabinet features, and installation flexibility.
Explains furnace installation types and venting.
Lists termination kits for venting installations.
Primary heat exchanger and secondary condenser coil assembly details.
Explains the header box for flue condensate collection and disposal.
Details the condensate trap assembly location and connections.
Describes the inshot burners, their operation, and serviceability.
Covers the ignitor material, life, and operation.
Details the 24-volt redundant combination gas control valve.
Explains the inducer blower's function in purging and venting.
Describes the pressure switch's role in proving blower operation.
Explains the automatic reset primary limit control.
Details the manual reset rollout switch for protection.
Kit for proper operation at higher altitudes.
Kit for proper operation above 4,500 ft.
Kit for changing from natural gas to LPG/Propane.
Describes the solid-state board and its functions.
Explains the use of accessory terminals for add-ons.
Details the furnished 24-volt transformer.
Describes the box for line voltage wiring.
Describes the blower motor and its mounting.
Details filter provisions and rack kits for side return.
Describes the EZ filter base for bottom return air.
Describes the cabinet construction, insulation, and access features.
Lists optional accessories like condensate drain heat cable kits.
Allows condensate drain installation on the opposite side.
Required for certain side return air configurations.
Details input, output, and temperature rise for each model.
Lists pipe sizes and types for various connections.
Provides details on blower wheel, motor, and cooling capacity.
Lists shipping weight and electrical characteristics.
Lists available filter and rack kits by model width.
Lists bases and frames for furnace installation.
Details heat cable and tape kits for condensate lines.
Lists twinning kits for operating multiple furnaces.
Lists various kits for direct and non-direct vent applications.
Lists kits for high altitude and fuel conversion.
Table showing vent length limits based on altitude and pipe size.
Table detailing vent lengths for various termination kits.
Diagram and table showing overall furnace dimensions (A, B, C).
Details supply and return air opening locations and sizes.
Dimensions for the RAB base for up-flow applications.
Table showing combined dimensions for furnace and coil units.
Dimensions and diagrams for concentric wall and roof termination kits.
Dimensions and diagrams for the wall ring termination kit.
Dimensions and diagrams for close-couple wall termination kits.
Dimensions and diagrams for WTK wall assembly kits.
Blower/watts data for the 24B-045 model.
Blower/watts data for the 24B-070 model.
Blower/watts data for the 36B-070 model.
Blower/watts data for the 36C-090(H) model.
Blower/watts data for the 36C-090 model.
Blower/watts data for the 48C-090 model.
Blower/watts data for the 48C-110 model.
Blower/watts data for the 60C-110 model.
Blower/watts data for 60C-110 with bottom return.
Blower/watts data for the 60D-135 model.
Blower/watts data for 60D-135 with single side return.
Blower/watts data for 60D-135 with bottom return.