11 Mar 2025

Heating and hot water appliance manufacturer, Navien UK, is expanding its flagship NCB range of boilers with the launch of two new 30 kW models for its the NCB300 and NCB500 ON combi boilers.

Designed in response to industry demand, these new options provide installers with greater flexibility when selecting the right boiler for their customers.

NCB300 and NCB500 ON boilers

When choosing a boiler, selecting the correct kW rating is essential to ensuring optimal comfort and performance for a property,” says Jason Davies, sales director at Navien UK.

By introducing a 30kW option for our NCB300 and NCB500 ON boilers, we’re giving installers more choice and making it easier to meet the needs of their customers.”

Navien Choice Plus rewards program

Navien will be offering installers the chance to earn more points through its Navien Choice program

To celebrate the launch, Navien will be offering installers the chance to earn more points through its Navien Choice Plus rewards program. 

From the 10 March until 30 May, installers can unlock three levels of rewards for every third NCB500 ON boiler they install this spring.

Earn points and unlock rewards

As members of Navien Choice Plus, installers can gain 30 extra reward points for installing three NCB500 ON boilers, 60 extra points for installing six NCB500 ON boilers and finally, 90 extra points for installing nine NCB500 ON boilers.

Once nine installations have been achieved – and if there is still time left on the promotion – the points will be reset, giving installers more time to earn points and unlock further rewards.

Navien’s reward scheme

The points can be used to unlock high-quality rewards from cameras and smart watches

The points can be used to unlock high-quality rewards from cameras and smart watches to coffee machines, DeWalt toolkits and even holidays through Navien’s reward scheme.

Jason added: “We are delighted to be running another rewards bonus scheme this spring to support the launch of our 30kW NCB500 ON. With extra points being earned on every third NCB500 ON install over the next three months, across three different levels, it seems that good things do come in threes!"

Range of NCB ON features

Jason added: “Our award-winning range of NCB ON features innovative ON technology, which enables them to provide rapid hot water and consistent temperatures with no fluctuations in temperature."

"Following great success, we are excited to introduce a smaller model to the range, which will no doubt make this technology accessible for many more households.” The promotion will run from the 10 March until 30 May 2025, only installations of the NCB500 ON will apply.