A “Top-Vent” furnace must be vented vertically up through the roof. This way it may be centrally located inside the home on an inside wall. The combusibles will go up the vent and discharge outside.

Monterey Top-Vent Gravity Models include 2509821, 2509621A, 2509822, 2509622A, 3509821, 3509621A, 3509822, 3509622A, 5009821, 5009621A, 5009822 and 5009622A.

Forsaire Top-Vent Counterflow Models include 6008532, 6008531, 3508632, 3508631, 5008632, 5008631, 6508632, 6508631, 3508232, 3508231, 5508232 and 5508321.

Console Room Heater Models include #2001622A, 2001621A, 3501522A, 3501521A, 3501922A, 3501921A, 5001522A, 5001521A, 5001922A, 5001921A, 6501522A, 6501521A, 6501922A, 6501921A, 2001622A, 2001621A, 3502522A, 3502521A, 3502922A, 3502921A, 5002522A, 5002521A, 5002922A, 5002921A, 6502522A, 6502521A, 6502922A and 6502921A.

Floor Furnace Models include 4505622A, 4505621A, 6005622A and 6005621A.