Do Navien boilers have a built-in frost protection?

October 24th 2023

Navien boilers incorporate a built-in frost thermostat which automatically turns on the boiler and pump if the water in the boiler falls below 10°C, providing the electrical supply is on. The boiler will operate until the water temperature in the system reaches approximately 10°C measured on the flow sensor in the boiler.

Any other pipework outside of the boiler should be protected from the risk of freezing and protected with suitable insulation. Additional protection from external frost thermostats and pipe thermostats should also be considered.

For systems requiring freeze protection, use only inhibited propylene glycol, specially formulated for hydronic heating systems; use of other types of antifreeze may be harmful to the system and will void the warranty.

More news articles...

Apr 4th 2024

Advice

How long does a boiler last?

Whether you have recently bought a new boiler or are considering replacing your existing boiler, you are likely wondering how

How Often Should Your Boiler Be Serviced

Mar 14th 2024

Advice

How Often Should Your Boiler Be Serviced?

As a homeowner, keeping on top of the health of your boiler is very important. However, you may not know

Boiler Upgrade Scheme Explained banner

Advice

Boiler Upgrade Scheme Explained

In 2022, the UK Government increased their efforts to decarbonise England and Wales with the introduction of the Boiler Upgrade

Customer Service