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104976
OWNER’S MANUAL
KEY PART PART
NO. NUMBER DESCRIPTION QTY.
1 M51104-01 Handle 1
2 098511-231 Upper Shell 1
3 102432-01 Screw/Lockwasher, 1/2" 6
4 098512-44 Combustion Chamber 1
5 M11084-29 Screw, #10-16 x 3/4" 2
6 M16660 Photocell Bracket 1
7 M10908-2 Screw, #6-32 x 3/8" 2
8 HA3019 Photocell Assembly 1
9 098872-03 Power Cord 1
10 ** Burner Head Assembly 1
10-1 100735-14 Nozzle 1
10-2 M10659-1 Nozzle Seal Washer 2
10-3 M10809-1 Nozzle Seal Spring 1
10-4 M8882 Nozzle Seal Sleeve 1
10-5 M51098-02 Burner Head Body 1
10-6 M50820-01 Barb Fitting 2
10-7 104184-01 Spark Plug 1
11 102431-01 Screw/Lockwasher, 1/2" 12
12 M30865-02 Bushing 2
13 M50400 Strain Relief Bushing 1
14 M30884 Fan 1
15 M50631 Rubber Bumper 2
16 079010-33 Wire Assembly (black) 2
17 101205-01 Motor Bracket 1
18 ** Motor and Pump Assembly 1
18-1 102001-19 Motor with capacitor 1
18-2 079975-02 Pump Body 1
18-3 M22009 Insert 1
18-4 M22456-1 Rotor 1
18-5 M29608 End Pump Cover 1
18-6 M29632 Lint Filter 1
18-7 M29633 Intake Filter 1
18-8 M29609 End Filter Cover 1
18-9 M12461-31 Screw, #10-32 x 1" 3
18-10 M8940 Steel Ball (1/4" Dia.) 1
18-11 M10993-1 Pressure Relief Spring 1
18-12 M27694 Adjusting Screw 1
18-13 M22997 Plug 1
18-14 M29612-01 Output Filter 1
18-15 M12461-31 Screw, #10-32 x 1" 6
KEY PART PART
NO. NUMBER DESCRIPTION QTY.
18-16 M50016 Elbow, 90˚ (Barb Fitting) 1
18-17 M8643 Blade 4
18-18 FHPF3-5C Screw, #10-32 x 5/8" 2
18-19 104007-01 Capacitor 1
19 M51105-01 Fan Guard 1
20 NTC-4C Hex locknut 2
21 M50104-02 Bushing (wires) 2
22 102801-01 Power Line RFI Filter 1
23 098511-232 Lower Shell 1
24 M11271-8 Clip Nut 6
25 097462-01 ON/OFF Switch 1
26 079919-01 Switch Cover 1
27 RF3-6B Screw, #10-32 x 3/4" 1
28 M29652-04 Rubber Airline 1
29 079973-01 Fuel Line 1
30 M16841-57 Wire Assembly (red) 1
31 M10990-3 Rubber Bushing 1
32 M50876-05 Fuel Filter Assembly 1
(Includes bushing)
33 102482-02 Electronic Ignitor 1
34 M11084-29 Screw, #10-16 x 3/4" 2
35 099125-13 Terminal Board 1
36 099157-01 Rivet 1
37 097702-01 Fuel Tank Cap 1
38 097630-02 Flame-Out Control 1
39 098513-90 Fuel Tank 1
40 097461-05AA Side Cover 1
41 NPF-3B Nut, #10-32 3
42 099177-01 Hex Nut 1
43 078918-01 Terminal Board Tab Cap 2
44 097785-01 Vinyl Foam Gasket 1
45 WLE-3 Lock Washer, #10 2
PARTS AVAILABLE - NOT SHOWN
HA2210 Filler Neck Screen 1
104974-01 Tradename Decal 2
M9900-192 Combustion Chamber
Ground Wire 1
PARTS LIST
NTH70
70,000 BTU/HR MODEL
**Not available as an assembly, order parts separately.
This list contains replaceable parts used in your heater. When ordering parts, be sure to
provide the correct model and serial numbers (from the model plate), then the part number
and description of the desired part.