Navien Mixing Valve Replacement in Greater Vancouver
Genuine Navien mixing valve, supplied and professionally installed by Technical Safety BC–licensed gas fitters. Never sold for DIY.
The Mixing Valve on Your Navien Boiler
Thermostatic mixing valves blend hot supply with cooler return water to deliver a safe, stable temperature — essential for in-floor radiant heat and for tempering domestic hot water. A failed valve causes overheating loops or scald-risk water.
On Navien systems — including models such as NCB-240E, NCB-210E, NHB-150 — a failing mixing valve often shows up as e003 ignition failure or related symptoms. We diagnose it precisely and install the correct genuine Navien part.
Typical Lifespan
10-15 years
Brand
Navien
Part Category
Hydronic & Water
Safety Warning
A radiant floor that suddenly runs too hot may have a failed mixing valve — important to fix to protect the floor.
Signs of a Failing Navien Mixing Valve
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.
Why Have Us Install Your Navien Mixing Valve?
Other Navien Parts We Install
Navien Mixing Valve Service Across Metro Vancouver
Frequently Asked Questions
Navien Mixing Valve Replacement, Done Right
Genuine Navien parts, professionally installed and tested across Greater Vancouver.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985