OWNER’S MANUAL

PARTS LIST

NTH50-2

50,000 BTU/HR MODEL

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.

KEY

PART

 

 

 

KEY

PART

 

 

NO.

NUMBER

DESCRIPTION

QTY.

NO.

NUMBER

DESCRIPTION

QTY.

1

M51104-01

Handle

1

 

14

098872-04

Power Cord

1

2

098511-256

Upper Shell

1

 

15

M50400

Strain Relief Bushing

1

3

M11084-29

Screw, #10-16 x 3/4"

2

 

16

NTC-4C

Hex Lock Nut, 1/4-20

2

4

102432-01

Screw/Lockwasher, 1/2"

6

 

17

102431-01

Screw/Lockwasher, 1/2"

4

5

098512-67

Combustion Chamber

1

 

18

M50631

Rubber Bumper

2

6

M10908-2

Screw, #6-32 x 3/8"

2

 

19

097461-09

Side Cover

1

7

103154-03

Photocell Bracket

1

 

20

101205-01

Motor Bracket

1

8

M16656-24

Photocell Assembly

1

 

21

M30865-02

Bushing

1

9

∗∗

Burner Strap Assembly

1

 

22

M11271-8

Clip Nut

6

9-1

100735-27

Nozzle Assembly

1

 

23

M50104-02

Bushing

1

9-2

102548-05

Ignitor Kit

1

 

24

102431-01

Screw/Lockwasher, 1/2"

6

9-3

104056-01

Nozzle Adapter

1

 

25

RF3-4B

Screw, #10-32 x 1/2"

1

9-4

102336-01

Nozzle Adapter Bracket

1

 

26

098511-237

Lower Shell

1

9-5

M10908-75

Screw, #6-32 x 7/8"

1

 

27

M50814-06

Rubber Airline

1

9-6

103347-01

Belleville Washer

1

 

28

M29652-05

Fuel Line

1

10

102431-01

Screw/Lockwasher, 1/2"

2

 

29

108060-03

Fuel Filter

1

11

103684-01

Fan

1

 

30

M10990-3

Rubber Bushing

1

12

∗∗

Motor and Pump Assembly

1

 

31

102861-01

Nylon Locknut

1

12-1

102001-23

Motor

1

 

32

102349-01

PCB Support

5

12-2

079975-02

Pump Body

1

 

33

104068-04

Ignition Control Assembly

1

12-3

M22009

Insert

1

 

34

097702-01

Fuel Cap (Includes Gasket)

1

12-4

M22456-1

Rotor

1

 

35

108088-03

Fuel Tank

1

12-5

M29608

Pump End Cover

1

 

36

M51108-01

Shell Heat-Shield

1

12-6

M29632

Lint Filter

1

 

37

NPF-3B

Nut, #10-32

3

12-7

M29633

Intake Filter

1

 

38

097785-01

Vinyl Foam Gasket

1

12-8

M29609

Filter End Cover

1

 

39

WLE-3

Lockwasher, #10

1

12-9

M12461-31

Screw, #10-32 x 1"

3

 

40

079010-39

Wire Assembly (Brown/White)

1

12-10

M27694

Adjusting Screw

1

 

41

105793-01

ON/OFF Switch

1

12-11

M10993-1

Pressure Relief Spring

1

 

42

079919-01

Switch Cover

1

12-12

M22997

Plug

1

 

43

079010-40

Wire Assembly (White)

1

12-13

M8940

Steel Ball, 1/4" Diameter

1

 

 

 

 

 

 

 

PARTS AVAILABLE - NOT SHOWN

 

12-14

M29612-01

Output Filter

1

 

 

 

 

 

 

 

 

12-15

M12461-31

Screw #10-32 x 1"

6

 

 

HA2210

Filler Neck Screen

1

12-16

103676-01

Nylon Elbow, 90°

1

 

 

103814-01

Wire Tie

1

12-17

M8643

Blade

4

 

 

104974-01

Tradename Decal

2

12-18

FHPF3-5C

Screw, #10-32 x 5/8"

2

 

 

106013-05

Decal Package

1

12-19

105780-01

Plastic Cap

1

 

 

105880-01

Ignition Control Assembly Fuse

1

13

M51105-01

Fan Guard

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

∗∗Not available as an assembly; order parts separately

105787

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Image 17
Desa NTH100-2, NTH50-2, NTH35-2, NTH150-2, NTH70-2 owner manual FHPF3-5C
Page 16 Page 18

NTH35-2, NTH70-2, NTH50-2, NTH100-2, NTH150-2 specifications

Desa NTH series includes advanced models like NTH150-2, NTH70-2, NTH50-2, NTH100-2, and NTH35-2. Each of these models is designed to cater to diverse needs in heating, ventilation, and air conditioning systems, ensuring optimal performance and energy efficiency.

The NTH150-2 is a powerful unit boasting an output capacity of 150,000 BTU. It features a dual-stage heating system, allowing for rapid temperature changes while maintaining energy efficiency. This model is equipped with advanced sensor technology that automatically adjusts the heating output based on room conditions, creating a comfortable indoor environment. Additionally, its robust build ensures durability and longevity.

Next in line is the NTH70-2, a medium-capacity heater suitable for residential settings. This model focuses on user-friendliness with an intuitive digital control panel, offering precise temperature settings and timer functions. The NTH70-2 is also designed with an eco-mode feature, significantly reducing energy consumption while still delivering consistent heating performance.

The NTH50-2 is designed for smaller spaces, providing an output of 50,000 BTU. This model emphasizes portability with a compact design and lightweight construction. It includes safety features like overheat protection and automatic shut-off, making it an excellent choice for individual rooms or smaller apartments. Its noise-reduction technology also ensures quiet operation, enhancing user comfort.

The NTH100-2 strikes a balance between capacity and efficiency, making it a versatile option for various applications. This model incorporates modern inverter technology, enabling it to adjust its power usage based on demand. This results in lower energy bills without compromising the heating experience. The NTH100-2 is also equipped with Wi-Fi connectivity, allowing users to control their heating system remotely via a smartphone app.

Finally, the NTH35-2 serves as an energy-efficient solution for extremely small spaces or as a supplemental heating source. It features low-energy heating technology, which ensures that operational costs remain minimal. This unit is praised for its easy installation and maintenance, making it an ideal choice for those looking for practicality without sacrificing performance.

Overall, the Desa NTH series exemplifies a commitment to innovative heating solutions, blending advanced technology, user-friendly designs, and energy efficiency to meet a wide range of indoor climate needs.
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