Can you replace the heat exchanger on my Navien boiler?

Yes. BoilerPart.ca supplies and professionally installs the genuine Navien heat exchanger across Greater Vancouver. Our licensed technicians diagnose the fault, fit the correct OEM part, and test the system.

Do you sell the Navien heat exchanger on its own?

No. Boiler parts are supplied and installed by our licensed technicians as part of a repair — we do not sell parts for individual or DIY purchase. We install the Navien heat exchanger as part of a certified repair so it is fitted correctly, tested for safety, and keeps your Navien warranty valid.

How do I know my Navien heat exchanger has failed?

Typical symptoms include: No heat or hot water; Visible water leaking from the boiler; Carbon monoxide detector activating; Soot or black marks around the casing. On Navien boilers this can also show as E003 Ignition Failure or E012 Flame Loss. We confirm the diagnosis before any work.

Navien · Combustion & Gas

Navien Heat Exchanger Replacement in Greater Vancouver

Genuine Navien heat exchanger, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.

Call (604) 359-1081 Request Service

The Heat Exchanger on Your Navien Boiler

The primary heat exchanger is the heart of your boiler, transferring heat from the burner flame and combustion gases into your heating water. In condensing boilers it is usually stainless steel or aluminium; in cast-iron and conventional boilers it is the boiler block itself. A cracked, blocked, or corroded heat exchanger is one of the most serious boiler faults — it can cause flue-gas leakage, internal leaks, and loss of efficiency.

On Navien systems — including models such as NCB-240E, NCB-210E, NHB-150 — a failing heat exchanger often shows up as e003 ignition failure or related symptoms. We diagnose it precisely and install the correct genuine Navien part.

Typical Lifespan

10-20 years

Brand

Navien

Part Category

Combustion & Gas

Safety Warning

A carbon monoxide alarm or visible flue-gas staining requires you to shut the boiler off and call for professional inspection immediately.

Signs of a Failing Navien Heat Exchanger

No heat or hot water

Visible water leaking from the boiler

Carbon monoxide detector activating

Soot or black marks around the casing

Repeated pressure loss

White scale or kettling/banging noises

Falling efficiency and rising gas bills

Parts Are Professionally Installed — Not Sold for DIY

For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.