Preferred Series 80 Oil Furnace Model: 374RAN Key Features AFUE up to 80.5% Multi-speed blower High-performance Riello burner Quieting flue silencer baffles Fully insulated cabinet walls Multipoise and Low Boy models for tight installations Barometric draft control Durable aluminized steel secondary heat exchanger Lifetime heat exchanger limited warranty Click here to read more. Preferred Series 80 Oil Furnace Model: 368RAN Key Features AFUE up to 80.5% Multi-speed blower High-performance Riello burner Quieting flue silencer baffles Fully insulated cabinet walls Multipoise and Low Boy models for tight installations Barometric draft control Durable aluminized steel secondary heat exchanger Lifetime heat exchanger limited warranty Click here to read more. Legacy Line Oil Furnace Model: 367AAN Key Features AFUE up to 80.5% Multiple-speed blower Low-constant fan switch Even heat distribution High-performance Beckett burner Quieting flue silencer baffles Fully insulated cabinet walls Barometric draft control Multipoise and Low Boy models for tight installations Durable aluminized steel secondary heat exchanger Lifetime heat exchanger limited warranty Click here to read more.

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