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Navien Parts & Accessories

Use the menu above to filter accessories by series, or click here to find detailed parts lists for all Navien products.
3" common vent collar kit

3" common vent collar kit

Required for cascade/common vent installations with NFB-C

Part Number: (30022799A)

Includes cascade cable (GXXX000546) and common vent collar damper.

1 year warranty from date of purchase.
Common Vent Collar Kit

Common Vent Collar Kit

Part Number: (30014367B)

Required for Cascade/common vent installations with NPE-2, NFC-H, NFB-H, NHB-H, and NHB (NHB -110 & NHB-150 models) series units produced on or after September 15, 2016. Includes Cascade Cable (GXXX000546), VID jumper cable and common vent collar damper.

1 year warranty from date of purchase.
Click for Downloads
External Pump Connector for NPE and NPN Series

External Pump Connector for NPE and NPN Series

Part Number: (GXXX001319)

Allows all NPE, NPE-2, NPN, and NHW-A series models to control an external pump through the internal PCB.

90 day warranty from date of purchase.
Click for Downloads
HotButton™ Kit

HotButton™ Kit

Part Number: (PZZZ-00046)

Designed for NPE-A. NPN-U, NPN-E, and NHW-A series. HotButton™ kit allows manual operation of a recirculation pump (ComfortFlow™ on NPE-A). Includes an add-on PCB, 1 push button and wall plate.

3 year warranty from date of purchase.
Part Number: (GXXX001426)

"Extra push button for use with HotButton and extra wall plate.

90 day warranty from date of purchase.
Part Number: (GXXX001427)

Extra wall plate for use with HotButton and extra HotButton push buttons.

90 day warranty from date of purchase.
Click for Downloads
Learn more about HotButton™ Kit
H₂Air™ Kit AHU Optimizer

H₂Air™ Kit AHU Optimizer

Part Number: (PNBD-000001)

Designed for NPE-A, NPE-A2, and NHW-A series. Allows for combined space heating and domestic hot water when paired with a recirculation pump (ComfortFlow™ on NPE-A and NPE-A2). Only works with AHU’s.

3 year warranty from date of purchase.
Click for Downloads
Learn more about H₂Air™ Kit AHU Optimizer
LonWorks gateway

LonWorks gateway

Part Number: (GXXX001933)

Converts proprietary equipment data to LonWork protocol. Includes gateway, power supply, connectors and set up instructions.

1 year warranty from date of purchase.
Click for Downloads
Manifold, Primary for NFB Series

Manifold, Primary for NFB Series

Part Number: (GFFM-MSOZUS-002)

Navien’s NFB primary manifold kits are system matched for fast installations and maximum efficiency.

Click for Downloads
Manifold, Primary for NHB Series

Manifold, Primary for NHB Series

Part Number: (GFFM-MSOZUS-001)

Primary loop manifold designed to work on NHB models for fast, clean installations. Pump not included. Not for use with NHB-110 and NHB-150 cascade installations.

1 year warranty from date of purchase.
Click for Downloads
Manifold, Secondary

Manifold, Secondary

Part Number: (GFFM-SKTZUS-001)

Secondary loop manifold designed to work on NCB-E, NFC, NFC-H, NHB, NFB and NFB-H models for fast, clean installations. Pump not included.

1 year warranty from date of purchase.
Click for Downloads
Manifold, Stainless Steel for NHB-H Series

Manifold, Stainless Steel for NHB-H Series

Part Number: (GXXX002396)

Primary loop stainless steel manifold designed to work on NHB-H models for fast, clean installations. Includes PRV/LWCO adapter tree, threaded connection adapter with clip and LWCO plug.

1 year warranty from date of purchase.
Click for Downloads
Modbus/BACnet gateway & power adaptor

Modbus/BACnet gateway & power adaptor

Part Number: (GXXX001932)

Converts proprietary equipment data to BACnet MS/TP, BACnet/IP and Modbus TCP building automation protocols. Built-in WI-FI capability allows connection without accessing facility’s LAN network. Includes gateway, power supply, connectors and set up instructions.

1 year warranty from date of purchase.
Click for Downloads
NPE-A and NPE-A2 Plumb Easy 3-Valve Set (V2)

NPE-A and NPE-A2 Plumb Easy 3-Valve Set (V2)

Part Number: (GXXX002140)

¾” Lead-Free isolation valve kit with relief valve – 3 valve set: Cold, Hot, Recirculation Return. Designed to work with NPE-A2 and NPE-A series units.

1 year warranty from date of purchase.
NaviCirc™

NaviCirc™

Part Number: (PFFW-SXX-001)

NaviCirc is a simple plumbing device that uses the existing hot and cold water lines to reduce the wait time for hot water at the faucet without the need for a dedicated recirculation return line.

3 Years warranty from date of purchase.
Part Number: (30022965A)

NaviCirc Valve Kit includes the NaviCirc Valve (PFFW-SXX-001) and two 1/2" x 3/8" flexible hoses and adapters.

3 years warranty from date of purchase.
Click for Downloads
Learn more about NaviCirc™
NaviClean™

NaviClean™

Part Number: (GXXX001727)

Highly recommended for protecting hydronic heating systems by capturing magnetite and iron oxides. Especially important in retrofit situations where older piping exists.

1 year warranty from date of purchase.
Click for Downloads
Learn more about NaviClean™
NaviLink Lite™ Wi-Fi Control

NaviLink Lite™ Wi-Fi Control

Part Number: (PBCM-AS-002)

This add-on accessory will enable customers with smartphones and tablets to control temperatures remotely, access usage data and receive diagnostic notifications on all Navien products (NPE-2, NPN-U, NPN-E, NCB-H, NFC-H, NFB-H, NHB, NHB-H and NHW-A). Works with only one Navien unit via Wi-Fi connection.

3-year warranty from date of purchase.
Click for Downloads
Learn more about NaviLink Lite™ Wi-Fi Control
NaviLink® Wi-Fi Control

NaviLink® Wi-Fi Control

Part Number: (PBCM-AS-001)

This add-on accessory will enable customers with smartphones and tablets to control temperatures remotely, access usage data and receive diagnostic notifications on all Navien products (NPE, NPE-2, NPN-U, NPN-E, NCB-E, NCB-H, NFC, NFC-H, NFB, NFB-H, NFB-C, NHB, NHB-H and NHW-A).

3 year warranty from date of purchase.
Part Number: (GXXX001659)

NaviLink cable. Allows you to expand your NaviLink control to a maximum of 3 channels for monitoring 3 banks of 8 units. Requires NaviLink Control.

90 day warranty from date of purchase.
Click for Downloads
Learn more about NaviLink® Wi-Fi Control
NaviVent™ Adjustable roof flashing

NaviVent™ Adjustable roof flashing

Part Number: (GXXX001901)

Click for Downloads
NaviVent™ Concentric roof termination

NaviVent™ Concentric roof termination

13" (330mm)

Part Number: (GXXX001893)

Click for Downloads
NaviVent™ Condensate trap kit

NaviVent™ Condensate trap kit

GXXX001952

Part Number: (GXXX001952)

Click for Downloads
NaviVent™ Elbow

NaviVent™ Elbow

80-125 mm 45º

Part Number: (GXXX001894)

Click for Downloads
NaviVent™ Elbow

NaviVent™ Elbow

80-125 mm 90º

Part Number: (GXXX001895)

Click for Downloads
NaviVent™ Flat roof flashing

NaviVent™ Flat roof flashing

Part Number: (GXXX001900)

Click for Downloads
NaviVent™ Metal wall strap

NaviVent™ Metal wall strap

6 pieces per box

Part Number: (GXXX001902)

Click for Downloads
NaviVent™ Sidewall termination kit

NaviVent™ Sidewall termination kit

11.5" (292mm)

Part Number: (GXXX001891)

Click for Downloads
NaviVent™ Sidewall termination kit

NaviVent™ Sidewall termination kit

21" (533mm)

Part Number: (GXXX001892)

Click for Downloads
NaviVent™ Vent pipe extension 10"

NaviVent™ Vent pipe extension 10"

Part Number: (GXXX001896)

Click for Downloads
NaviVent™ Vent pipe extension 39"

NaviVent™ Vent pipe extension 39"

Part Number: (GXXX001897)

Click for Downloads
Neutralizer, Commercial

Neutralizer, Commercial

Part Number: (GXXX001325)

Designed to neutralize the condensate of up to: 16 units NPE, NCB, NFC, NFB, NHB-H and NHB); 11 units NFB-301C; 9 units NFB-399C

1 year warranty from date of purchase.
Part Number: (GXXX001329)

Replacement Media for Commercial Neutralizer.

Click for Downloads
Neutralizer, Light Commercial

Neutralizer, Light Commercial

Part Number: (GXXX001324)

Designed to neutralize the condensate of up to: 6 units NPE, NCB, NFC, NFB, NHB-H and NHB; 3 units NFB-301C; 2 units NFB-399C

1 year warranty from date of purchase.
Part Number: (GXXX001328)

Replacement Media for Light Commercial Neutralizer.

Click for Downloads
Outdoor Sensor & Wire

Outdoor Sensor & Wire

Part Number: (30012950A)

The outdoor sensor and wire is designed to allow outdoor reset functionality on the NCB-E, NCB-H, NFC, NFC-H, NHB, NFB, NHB-H, NFB-H and NPF series units.

1 year warranty from date of purchase.
Click for Downloads
Outdoor Vent Kit for NPE-2 Series

Outdoor Vent Kit for NPE-2 Series

Part Number: (30025801A)

Designed for use with NPE-2 series units when installing your unit outside. Required for outdoor installations.

1 year warranty from date of purchase.
Click for Downloads
Outdoor vent cap kit (NPN-U only)

Outdoor vent cap kit (NPN-U only)

Part Number: (30023991A)

Designed for NPN-U and NHW-AE when installing unit outdoors. Required for NPN-U and NHW-AE outdoor installations.

1 year warranty from date of purchase.
Click for Downloads
Parts Kit - Boiler

Parts Kit - Boiler

Part Number: (30018663A)

NHB series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30023112A)

NFB series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30029596A)

NFB-H series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30025534A)

NFB-C series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Parts Kit - Combi-boiler

Parts Kit - Combi-boiler

Part Number: (30018660A)

CH series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30023113A)

NFC series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30018664A)

NCB and NCB-E series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30028684A)

NCB-H series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30029597A)

NFC-H series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Parts Kit - Tankless water heater

Parts Kit - Tankless water heater

Part Number: (30018661A)

NPE series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30018659A)

CC, CR, NR & NP series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30028683A)

NPE-2 series parts kit designed to help service in the field.

1 year warranty from date of purchase.
Part Number: (30024980A)

NPN series parts kit designed to help service in the field.

1 year warranty from date of purchase.
PeakFlow A

PeakFlow A

Part Number: (GPWC310001AC001)

PeakFlow A prevents scale by converting dissolved hardness minerals into powerless particles that will not attach themselves onto any of the components in the system. PeakFlow A, when sized correctly for the installation, will help to ensure the longevity of your system, and help eliminate hard water quality problems.

1 year warranty from date of purchase.
Click for Downloads
PeakFlow C

PeakFlow C

Part Number: (GPWC510001AC001)

PeakFlow C prevents scale by converting dissolved hardness minerals into powerless particles that will not attach themselves onto any of the components in the system. PeakFlow C, when sized correctly for the installation, will help to ensure the longevity of your system, and help eliminate hard water quality problems

1 year warranty from date of purchase.
Click for Downloads
PeakFlow S

PeakFlow S

Part Number: (GPWC110001AC001)

PeakFlow S prevents scale by converting dissolved hardness minerals into powerless particles that will not attach themselves onto any of the components in the system. PeakFlow S, when sized correctly for the installation, will help to ensure the longevity of your system, and help eliminate hard water quality problems.

1 year warranty from date of purchase.
Click for Downloads
Pipe Cover NHW-A Series

Pipe Cover NHW-A Series

Part Number: (30032304A)

Pipe cover designed to hide gas, water and power lines for an elegant, clean look. Works with NPE series units. Works with NHW-A series units.

1 year warranty from date of purchase.
Pipe Cover NPN series

Pipe Cover NPN series

Part Number: (30024017A)

Pipe cover designed to hide gas water and power connections for an elegant, clean look. Works with NPN-U and NPN-E units.

1 year warranty from date of purchase.
Click for Downloads
Pipe Cover for NPE-2 Series

Pipe Cover for NPE-2 Series

Part Number: (30025812A)

Pipe cover designed to hide gas, water and power lines for an elegant, clean look. Works with NPE-2 series units. Use with 30012581A Plumb Easy Valve Kit.

1 year warranty from date of purchase.
Click for Downloads
Plumb Easy Valve Set (V2)

Plumb Easy Valve Set (V2)

Part Number: (GXXX002139)

Navien Plumb Easy Valves (V2) are designed to provide ease of installation and operation as well as for quick maintenance on all tankless water heater models featuring a compact, versatile design that is easy to use.

1 year warranty from date of purchase.
Click for Downloads
Plumb Easy Valve Set 3/4” for Pipe Cover

Plumb Easy Valve Set 3/4” for Pipe Cover

Part Number: (30012581A)

3/4” lead free isolation valves with relief valve designed to work on NPE, NPE-2, and NHW-A series units. Allows for easy and quick servicing of DHW systems. Use with Pipe Cover.

1 year warranty from date of purchase.
Plumb Easy Valve Set, 1"

Plumb Easy Valve Set, 1"

Part Number: (30010950A)

1" isolation valves without relief valve designed to work on NHB, NHB-H, NCB-E, NCB-H and NFC-H series units. Will not work with NCB-H and NFC-H Primary Stainless Steel Manifold (30026576B).

1 year warranty from date of purchase.
Click for Downloads
Pressure relief valves

Pressure relief valves

1 year warranty from date of purchase.
Part Number: (GXXX001931)

75 PSI

Part Number: (30022090A)

150 PSI

Primary Manifold Kit for NCB-H and NFC-H

Primary Manifold Kit for NCB-H and NFC-H

Part Number: (30026576B)

Primary loop stainless steel manifold designed to work on NCB-H and NFC-H models for fast, clean installations. This package includes new stainless steel manifold, isolation valves with gaskets, PRV/air vent/LWCO adapter tree, air vent, threaded connection adapter with clip and LWCO plug.

1 year warranty from date of purchase warranty from date of purchase.
Click for Downloads
RAL Adapter

RAL Adapter

Part Number: (30032030A)

RAL Adapter includes PRV/air vent/LWCO adapter tree, air vent, threaded connection adapter with clip and LWCO plug.

1 year warranty from date of purchase.
Click for Downloads
Ready-Link® Communication Cable

Ready-Link® Communication Cable

Part Number: (GXXX000546)

Required to cascade and common vent NPE, NPE-2, NPN, NCB-E, NCB-H, NFC, NFC-H, NFB, NFB-H, NFB-C, NHW-A series and NHB-110 & NHB-150 models.

90 day warranty from date of purchase.
Click for Downloads
Ready-Link® Manifold System for NPE and NPE-2 Series

Ready-Link® Manifold System for NPE and NPE-2 Series

This innovative accessory will make cascading up to 16 units in 2 banks of 8 easy for emergency same day replacements. The kits are configures in 2, 3, and 4 side-by-side and 2, 4 back- to-back allowing for up to 16 units in 30 configurations. Each kit includes: * 3/4” Service Valves with PRV * 3/4” NPT Ball Valve * 2” Copper End Cap * 2-1/8” Strut Clamp * 3/4” x 24” SS Corrugated Flex Connector * 3/4” x 18” SS Corrugated Flex Connector * 1-7/8” OD Strut Clamp * 3/4” X 3/4” Adapter * 1-1/2” Gas Union * 2” Copper Coupling * 1-5/8” x 18” Strut Channel (14ga) * 3/4” x 30” Gas Flex Connector * 1-1/2” FPT Galvanized Iron End Cap * Hardware Kit

1 year warranty from date of purchase.
Part Number: (30019039A)

2 back-to-back

Part Number: (30019040A)

2 side-by-side

Part Number: (30019041A)

3 side-by-side

Part Number: (30019042A)

4 back-to-back

Part Number: (30019043A)

4 side-by-side

Click for Downloads
Learn more about Ready-Link® Manifold System for NPE and NPE-2 Series
Ready-Link® Rack (V3)

Ready-Link® Rack (V3)

1 year warranty from date of purchase.
Part Number: (GFFM-KDIZUS-005)

Ready-Link® Rack (V3) Base. The free standing rack system is designed for infield assembly for indoor and outdoor installations. Designed to work with NPE, NPE-2, NPN, NCB-E, NCB-H, NFC, NFC-H, NHB, NFB, NFB-H, NHB-H, NHW-A series units. Base rack allows installation for up to 2 units back to back.

Part Number: (GFFM-KDIZUS-006)

Ready-Link® Rack (V3) Add-on. The add-on rack is designed to expand the base rack system allowing up to 16 units back to back on a free standing rack system. Designed to work with NPE, NPE-2, NPN, NCB-E, NCB-H, NFC, NFC-H, NHB, NHB-H, NFB and NFB-H series units for infield assembly. Approved for indoor and outdoor installations.

Click for Downloads
Ready‑Link® Commercial Rack System

Ready‑Link® Commercial Rack System

Part Number: (GFFM-KDIZUS-007)

Ready-Link® Commercial Boiler Rack System Base. The free standing rack system is designed, with pipe support brackets, for infield assembly and approved for indoor installations. Designed to work with NFB-C series units.

Part Number: (GFFM-KDIZUS-008)

Ready-Link® Commercial Boiler Rack System Add-on. The add-on rack is designed, with a pipe support bracket, to expand the base rack system allowing up to 16 units on a free standing rack system. Designed to work with NFB-C series units for infield assembly and approved for indoor installations

Click for Downloads
Recess box (NHW-AE only)

Recess box (NHW-AE only)

Part Number: (30032303A)

1 year warranty from date of purchase.
Recess box (NPN-E only)

Recess box (NPN-E only)

Part Number: (30023550A)

1 year warranty from date of purchase.
Click for Downloads
Remote Controller

Remote Controller

Part Number: (30022717A)

Designed for use with NPE-2, NPN, and NHW-A series tankless water heaters. Allows users to adjust temperature, set operational settings, and display operational info. Allows users to adjust temperature and set the timer for the recirculation activation on NPE-A2 models.

3 year warranty from date of purchase.
Click for Downloads
Residential Neutralizer (V2)

Residential Neutralizer (V2)

Part Number: (GXXX002212)

Residential condensate neutralizer for NPE-2, NCB-H, NFC-H, NHB, NHB-H, NFB-H and NPF series units designed to neutralize the condensate of one unit.

1 year warranty from date of purchase. warranty from date of purchase.
Part Number: (GXXX001323)

Replacement media for residential neutralizer.

Click for Downloads
SmartZone+™

SmartZone+™

Zone pump controller designed to work with the NCB, NFC, NFB, NFB-C, NHB-H and NHB series allowing control from 2 to 6 zone pumps.

3 year warranty from date of purchase.
Part Number: (PFMZ-02P-001)

2 Zones

Part Number: (PFMZ-03P-001)

3 Zones

Part Number: (PFMZ-04P-001)

4 Zones

Part Number: (PFMZ-06P-001)

6 Zones

Click for Downloads
Universal temperature sensor

Universal temperature sensor

Part Number: (GXXX001769)

Designed to sense supply, return or tank temperature of your hydronic heating system. Works with NFC, NFC-H, NHB, NFB, NHB-H, NFB-H and NFB-C series boilers.

1 year warranty from date of purchase.
Click for Downloads
Wall Flange and Vent Terminate Kit

Wall Flange and Vent Terminate Kit

Part Number: (30010747A)

Wall flange designed to work on 2” intake and exhaust pipe for a clean installation look in location where the pipe goes through the wall.

Part Number: (30003873B)

Wall flange designed to work on 3” intake and exhaust pipe for a clean installation look in location where the pipe goes through the wall.

90 day warranty from date of purchase.
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