NC1991-OD-NG

The NC1991OD: Tankless for Professionals

The Noritz NC1991OD features a BTU input range from 16,000 to 199,900. It also features outdoor compatibility, compact design, temperature controls, and multi-system capability.

Technical Literature

Technical Specs

Warranty

Heat Exchanger Warranty (w/out Recirculation) 5 Years
Heat Exchanger Warranty (w/Recirculation) 5 Years
Parts Warranty 5 Years
Labor Warranty 1 Year

For detailed warranty terms and conditions please refer to the Noritz warranty page

1323709-B

O-Ring - Thermistor High Temp P4 (replaced 1323709)

$9.17

36 In Stock

3223302-B

O-Ring - High Temp P16 (replaced 3223302)

$7.33

983 In Stock

6340300-B

C Clamp - Water Pipe 16A (Replaced 6340300)

$7.33

39 In Stock

6340601

C Clamp - Gas Pipe 25.4

$10.98

Out of Stock

AAPL017

Gasket - Front Cover Sides

$7.33

Out of Stock

AMML001

Clamp -Freeze Prevention

$7.33

5 In Stock

BLBA001

Plug Sleeve

$3.66

220 In Stock

BWCD090-B

Magnetic Sensor - Replaced BWCD090

$54.93

9 In Stock

BWCD097-B

Thermistor - Cold Water (replaced BWCD097)

$36.62

11 In Stock

BWCD098-B

Thermistor -Heat Exchanger (replaced BWCD098)

$36.62

20 In Stock

BWCD096

Thermistor - Hot Water

$36.62

16 In Stock

BWCH003

Thermistor - Air

$36.62

2 In Stock

CK-49

Gas Conversion Kit (NG to LP)

$448.55

14 In Stock

CRUC045

Fan Plate ø44

$7.33

Out of Stock

CRUD055

C Clamp - Thermistor

$7.33

Out of Stock

CXPA026-B

Wire Grommet - Rubber

$7.33

2 In Stock

CZRL001

Gasket - Exhaust (OD)

$12.82

Out of Stock

DNSA025

Cover - External Remote Terminal Block

$9.17

6 In Stock

DNSA026

External Remote Terminal Block

$45.77

143 In Stock

DTJA015

Mounting Plate - Igniter

$9.17

Out of Stock

DTJD006

Water Filter Cap

$9.17

446 In Stock

EAAL002

Gasket - Front Cover Top and Bottom

$9.17

8 In Stock

EBTD023

Wire Cover - Servo

$7.33

12 In Stock

EFWC034

Burner Damper 17-14

$9.17

23 In Stock

EGBD032

Water Filter (replaced DTJD005)

$18.31

1118 In Stock

EGGD029

Safety Relief Valve

$45.77

4 In Stock

EGLH002

Clamp -Thermal Fuse

$9.17

5 In Stock

EHKL001

Gasket - Ignition Plug

$9.17

178 In Stock

EJMD002

Inlet Water Connection (SET)

$91.55

47 In Stock

ELVH002

High Limit Switch

$18.31

51 In Stock

ELVK003

Label - Outside Front Cover Caution Label

$18.31

Out of Stock

ELVK009

Label - Name Plate

$9.17

1 In Stock

ELVL011

Clamp - Freeze Prevention

$9.17

5 In Stock

ELWE021

Inlet Gas Connection w/ Screw (SET)

$36.62

2 In Stock

ENJA025

Junction Box Cover

$36.62

1 In Stock

ENJJ020

Inlet Power Wires

$9.17

Out of Stock

ENWL005

Gasket - Junction Box Cover

$7.33

3 In Stock

ERDD011

Water Flow Sensor w/ thermistor (SET)

$73.23

2 In Stock

ERDH002

Freeze Prevention Heater - Rectangle

$18.31

4 In Stock

ERDH003

Freeze Prevention Heater - Round Short

$18.31

4 In Stock

ERDJ011

GFCI (Lightning Protection)

$36.62

66 In Stock

ERDJ112

Igniter (Replaced ERDJ012)

$54.93

242 In Stock

ERDL007

Gasket - Manifold Plate Top

$9.17

12 In Stock

ERDL009

Gasket - Manifold Plate Bottom

$9.17

9 In Stock

ESWA032

Mounting Plate - Terminal Block and/or GFCI

$9.17

5 In Stock

ESWC011

Mounting Plate - Ignition Plug

$9.17

7 In Stock

ESWD001

Pipe - Inlet to Bypass Servo

$36.62

2 In Stock

ESWJ015

Wiring Harness - Gas Valve

$82.39

6 In Stock

ESWL001

Gasket - Burner

$18.31

6 In Stock

ETFD010

Water Servo - Bypass (SET)

$128.17

42 In Stock

ETFD011

Water Servo - Main (SET)

$128.17

5 In Stock

ETFJ033

Wiring Harness - Bypass Water Servo

$36.62

16 In Stock

ETPA073

Inlet Power Wire Clip

$7.33

5 In Stock

ETPE011

Gas Pipe

$91.55

4 In Stock

EVFA101

Case - NC1991-OD

$347.88

10 In Stock

EVFD003

Outlet Water Connection

$137.32

4 In Stock

EVFJ011

Wiring Harness - NC1991-OD

$274.65

8 In Stock

JBGJ024

Wiring Harness - Main Water Servo

$18.31

5 In Stock

SAA2811-B

Safety Relief Valve

$36.62

7 In Stock

SAA6044-B

O-Ring - Gas Solenoid

$9.17

22 In Stock

SAB1512-B

O-Ring - Gas Pipe P25.5

$7.33

385 In Stock

SAB2775

Clamp - Harness

$12.82

12 In Stock

SAC1229

High Voltage Igniter Wire

$12.82

59 In Stock

SAD6635-B

O-Ring - High Temp P9

$3.66

54 In Stock

SAD6593

C Clamp - Water Pipe 16-25

$7.33

39 In Stock

SHC71LF

Circuit Board - NR981,NC1991,NRC1111,NCC1991

$426.65

33 In Stock

SKC7470

Fan Motor w/ Housing - Multiple Units

$146.48

47 In Stock

SKH7184

Burner w/ Gasket and Ignition Plug (SET)

$302.10

52 In Stock

SKH7187

Gas Valve w/ Manifold Plate 24 (SET)

$347.88

134 In Stock

SKH7189

Thermal Fuse - NR981,NC1991,NRC1111,NCC1991

$36.62

216 In Stock

SKH7192

Freeze Prevention Heater - Double Round (SET)

$54.93

12 In Stock

SKH7199

Front Cover - NC1991-OD (SET)

$274.65

6 In Stock

SKJ71J7

Heat Exchanger Kit (NR981-OD) (GQ-2857WX US) (SET)

$656.34

75 In Stock

SKJ7381

Ignition Plug w/ Gasket & Plug Sleeve (replaced SKG7311)

$46.67

579 In Stock