1. Tube Sheet Coil Assembly Kit - HD Series - (Models 250HDNA, 250HD-LP) - 474063
1. Tube Sheet Coil Assembly Kit - HD Series - (Models 250HDNA, 250HD-LP) - 473710
1. Tube Sheet Coil Assembly Kit (Models 400HDNA, 400HD-LP) - 474065
1. Tube Sheet Coil Assembly Kit (Models 400HDNA, 400HD-LP) - 77707-0244
1. Tube Sheet Coil Assembly Kit (Models 400NA, 400LP) - 77707-0234
1. Tube Sheet Coil Assembly Kit (Models 300NA, 300LP) - 474060
1. Tube Sheet Coil Assembly Kit (Models 300NA, 300LP) - 77707-0233
1. Tube Sheet Coil Assembly Kit (Models 250NA, 250LP) - 474059
1. Tube Sheet Coil Assembly Kit (Models 250NA, 250LP) - 460747
1. Tube Sheet Coil Assembly Kit (Models 175NA, 175LP, 200NA, 200LP) - 474058
1. Tube Sheet Coil Assembly Kit (Models 175NA, 175LP, 200NA, 200LP) - 77707-0232
120/240 Volt Plug Kit - 42001-0105S
16. Stack Flue Sensor - 42002-0024S
15. Membrane Pad (NA, LP Series) - 472610Z
14. Heater, Top - 42002-0034Z
13. Control Board Kit (NA, LP Series) - 42002-0007S
11. Transformer, 115/230V - 42001-0107S
9. Fireman’s Switch Fuse (1.25A, 1-1/4 in.) - 32850-0099
8. Terminal Board - 42001-0056S
7. Thermistor - 42001-0053S
5. Automatic Gas Shutoff Switch (AGS) - 42002-0025S
4. Igniter Gasket - 42001-0066S
2. Igniter Bracket - 42001-0030S
Indoor Vent Adapter Kit, H400FD, Positive-Pressure (Horizontal) - UHXPOSHZ14001