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Navien Oil Boilers
Discover Navien Boilers – the UK’s top choice for Blue Flame oil boilers. High-efficiency, Smart Plus controls, three-zone ready, and backed by a 10-year warranty. Perfect for homes or light commercial use, including powerful water heaters. Reliable, energy-efficient heating and hot water all year round.
About Navien
Energy-Efficient Heating for Every Home
Navien Boilers, founded in 1978 and made in South Korea, provide reliable, energy-efficient heating and hot water solutions for homes and light commercial use worldwide.
Types of Navien Oil Boilers
Efficient, smart heating with Navien Boilers—perfect for homes of all sizes.
Oil Combi boilers
Compact, Efficient & Ideal for Small Homes
Oil Combi boilers are designed to be space-saving, efficient heating with instant hot water and no bulky cylinder.
Oil Regular Boilers
The Ideal Choice for Larger Homes
Regular Oil Boilers are perfect for busy homes with two or more bathrooms, providing reliable hot water and consistent heating.
Combi Boilers
Navien Gas, LPG, and Oil Combi Boilers offer UK homeowners a reliable, energy-efficient solution for instant hot water and consistent central heating. With advanced condensing technology, Smart Plus controls, and compact designs, they fit any home while delivering long-term performance, cost savings, and peace of mind.
Navien NCB700 Blue Flame
Combi Oil boilers – Internal
£4,664.53 Inc. VAT
from £67.00 Per month
Navien NCB700 Blue Flame
Combi Oil Boilers – External
£4,895.00 Inc. VAT
from £56.00 Per month
Regular Boilers
Navien NCB700 Blue Flame
Regular Oil Boilers – Internal
£3,795.00 inc. VAT
from £55.00 Per month
Navien NCB700 Blue Flame RSX
Regular Oil Boilers – External
£3,895.00 Inc. VAT
from £56.00 Per month
Frequently Asked Questions About Navien Boilers
Discover Navien oil boilers, including combi and regular models, designed for efficient, reliable home heating. Learn everything you need to choose the perfect energy-saving boiler for your home and budget.
Navien oil boilers are known for their cutting-edge technology, exceptional energy efficiency, and durable stainless-steel heat exchangers. They’re designed to deliver reliable performance while reducing fuel consumption and emissions — perfect for modern, eco-conscious homes.
Yes! Navien oil boilers are built with high-efficiency condensing technology that recycles heat from exhaust gases. This design helps lower your fuel bills and carbon footprint compared to traditional non-condensing boilers.
Navien offers two main types of oil boilers: combi (combination) boilers that provide heating and hot water in one compact unit, and regular (conventional) boilers that work with a separate hot water cylinder for larger homes with higher demand.
With proper installation and regular maintenance, a Navien oil boiler can last 15–20 years or longer. Their advanced components and corrosion-resistant materials ensure long-term reliability and performance.
Absolutely. To maintain peak efficiency and safety, Navien oil boilers should be serviced annually by a qualified engineer. Regular servicing also helps keep your warranty valid and prevents unexpected breakdowns.
In most cases, yes. Navien oil boilers are designed for easy installation and compatibility with many existing heating systems. A professional installer can assess your setup and ensure a smooth, efficient replacement.
Navien oil boilers are engineered for ultra-quiet performance, thanks to advanced soundproofing and precision engineering. You’ll enjoy powerful heating without the noise often associated with older oil boilers.
The right size depends on your home’s size, insulation, and hot water needs. A heating expert can perform a heat loss calculation to recommend the perfect model to keep your home comfortable and efficient year-round.
Yes — Navien’s condensing technology and low-NOx burners significantly reduce emissions. Their boilers are among the most eco-friendly oil heating solutions available, designed to meet modern efficiency standards
You can purchase Navien oil boilers through approved heating installers or trusted suppliers like The Boiler Team, who provide expert installation and support to ensure maximum performance and warranty protection. Get a free quote now.
