Fuel Lifter Pump Model OPT-91UL
PART #20477500
PART #20479872
PART #20474951
PART #20474950
PART #20479861
PART #20474955
PART
#20474954
Exhaust Extension Pipe
PART #20479887
3
/
8
1-
3
/
8
Intake Pipe
Joint
Insulating cloth cover
Pipe Support
Hardware
L-Shaped exhaust joint
Intake Pipe
PART #20479853
Adjustable Exhaust Pipe
Max. 39-
3
/
8
~ Min. 22-
7
/
16
3
/
8
3
/
8
1-
3
/
8
PART #20479887 Flue pipe ext. (for wall up to "9~13")
PART #20479873 Flue pipe ext. (for wall up to "13~16")
PART #20479874 Flue pipe ext. (for wall up to "16~20")
PART #20479875 Flue pipe ext. (for wall up to "20~24")
Flue pipe extension
40 inch
3-
1
/
2
6-1/2 ft.
39-
3
/
8
3-
1
/
2
3-
3
/
8
ACCESSORY PARTS
The following accessory parts are available for use in non-standard installation of the Laser 300. After giving careful
consideration to your desired heater and flue pipe locations and fueling system, consult your TOYOSTOVE dealer to
purchase the necessary accessory parts.
Important: Use only genuine TOYOSTOVE parts for your heater. Use of unauthorized, generic or other brand
parts can severely reduce performance and safety, and will void factory warranty.
Accessory
Extension pipe kit (L)*
Extension pipe kit (M)*
Extension pipe kit (S)*
L-Shaped exhaust joint*
Fuel lifter pump
Model OPT-91UL
Pressure reducing valve
Part No.
20479898
20479897
20479896
20479861
20477500
10005099
Application
Extends pipe system from 61-3/4 to 78-3/4”
Extends pipe system from 22-1/2 to 39-3/8”
Extends pipe system from 12-5/8 to 19-5/8”
For 90 degree bend in exhaust pipe
Used to lift fuel to heater when fuel tank is located underground or
outdoors in a position lower than the heater.
With automatic recovery.
See Note on page 34.
*
Total length of extension pipe between heater and flue pipe must be no greater than 10 ft. and no more than three
bends may be used in extension pipe.
Heater
8
1
/
2
ft.
maximum
8
1
/
2
ft.
maximum
16 in.
minimum
16 in.
minimum
Outlet side
Less than 20 in. (50 cm)
Less than
26 ft. (8 m)
Less than
26 ft. (8 m)
Less than
23 ft. (7 m)
Inlet side
fuel tank
Heater
Return pipe
Required clearance
Oil level in full
Fuel tank
22
Laser 300_Type A_US.qxd 15.3.26 16:12 ページ 22