Heating – Oil Furnaces

Highboy Oil Furnace (OH6, OH8)

  • A highboy is a tall upflow furnace with the blower located under the heat exchanger.
  • The low-profile design lends itself to many job site locations , even where space is limited.
Highboy Oil Furnace

Lowboy Oil Furnace (OL6, OL8, OL20)

  • A lowboy is a shorter height furnace with the blower located in back of the heat exchanger.
  • This design is typically used for basement room installations with low-height restrictions.
Lowboy Oil Furnace

Counterflow/Horizontal Oil Furnace (OD6, OT11, OT16)

  • The OD6 is dual poise and can be mounted horizontally or vertically in counterflow configuration.
  • The OT11 and OT16 is mounted horizontally where cold air is drawn in from the top and warm air is released at the bottom.


Solid Construction— The cabinet of the Patriot 80 rear flue furnace is constructed of heavy gauge galvanized steel, and is lined with foil-backed fiberglass insulation to hold heat within the unit. The primary heat exchanger is constructed of hand-welded steel for long life. The rear flue mode also features a welded secondary heat exchanger, which extracts additional heat from the flue gas before it is vented out. This reduces the amount of lost heat that goes up the chimney and increases the furnace’s efficiency. A high efficiency Beckett Oil Burner with positive alignment assures quiet and reliable operation.

Flexible & Efficient— The Patriot 80 residential oil furnace product family is a very complete line. Each Patriot 80 model can be fired at multiple firing rates. Multiple firing rates mean each model gives you a wider choice to meet your heating requirements. All Patriot 80 oil furnaces features A.F.U.E. Ratings above 80%.