Thermo Products OH6FA072D48N Model Number Digit, Fuel, Configuration, Heat Exchanger Identifier

Model Number Digit	1	2	3	4	5	6	7	8	9	10	11	12
	Fuel	Configuration	Heat Exchanger Identifier	Flue	Feature	Capacity	Capacity	Capacity	Blower Type	Clg Airflow Cap.	Clg Airflow Cap.	Burner
Oil Furnace Model Nomenclature Example Model Numbers	O	H	6	F	A	0	7	2	D	4	8	B
	O	H	6	F	A	0	7	2	D	V	4	R
	O	H	8	F	A	1	1	9	D	6	0	B
	O	H	8	F	A	1	1	9	D	V	5	R
O = Oil	O
H = Highboy D = Downflow		H
6 = Heat Exchanger Size Identifier			6
F = Front				F
R = Rear				R
A = Single Stage					A
X = 2-Stage					X
Heating Capacity MBTUH (000's) with factory installed nozzle						0	7	2
D = Direct Drive									D
Clg. Airflow: Example = 48MBTUH = 4 tons @ 400cfm/ton										4	8
Clg. Airflow Variable Speed (ECM) V5 = 5tons										V	5
B = Beckett, R = Riello, N = Beckett NX												B

ii