A combi boiler (or combination boiler) is perfect for providing reliable central heating and powerful hot water to your home without the need for a cylinder. And with Navien’s latest combi boiler technology, our oil boilers are capable of delivering powerful heating and hot water for a wide range of properties.

The Navien LCB700 Blue Flame range of oil boilers is the first in the UK market to offer an A+ energy rating, thanks to an exceptional design and the latest smart control systems.*

Combined with easy to install features, such as a combined PRV/condensate drain and flexible pipework arrangements, the Navien LCB700 Blue Flame oil boiler is a boiler like no other.

• HVO compatible.
• Future proof Blue Flame technology delivers superior efficiency and ultra-low NOx emissions.
• Lightweight design for easy installation.
• Clean and modern design.
• Stainless steel heat exchangers for optimum durability and long term efficiencies.
• Flue venting up to 21m in horizontal and vertical arrangements.
• Flexible installation options thanks to compact design and flueing.
• Achieves highest 3-star mark in DHW performance (in accordance with EN Regulations).
• Text driven integral display for intuitive control and fuel consumption figures.
• Class leading energy efficiency for reduced running costs.

* An A+ energy rating is achieved when installed with 3 Smart Plus room thermostats.