Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler
Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler

Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler

£2,200.00 inc. VAT

SKU : PLCB0021SH003

  • Internal (RS)
  • External (RSX)
  • 21kW
  • 28kW
  • 36kW
1


Navien LCB700 RS/RSX Blue Flame Internal/External Regular Oil Boiler

Product Description

Upgrade your heating system with the reliable Navien LCB700 RS/RSX Blue Flame Regular Oil Boiler. Designed for both internal and external installation, this versatile boiler is ideal for traditional heating systems requiring a separate hot water cylinder and cold water storage tank.

Featuring advanced blue flame combustion technology, it delivers efficient fuel usage, reduced emissions, and consistent heating performance. Built with durability in mind, this boiler provides long-term reliability while maintaining ease of operation through user-friendly controls.

Perfect for homes with existing conventional systems, it offers a dependable and efficient heating solution.

Why Customers Should Buy This Product

  • Internal or external installation for flexible setup
  • Blue flame technology for improved efficiency and cleaner combustion
  • Regular boiler design – ideal for traditional systems with cylinder and tank
  • Reliable and consistent heating performance
  • Durable construction for long-lasting use
  • User-friendly controls for simple temperature adjustment
  • Energy-efficient operation to help reduce running costs
  • Compatible with most heating systems and cylinders
  • Trusted quality from Navien

Key Specifications

  • Brand: Navien
  • Model: LCB700 RS / RSX
  • Product Type: Regular Oil Boiler
  • Installation: Internal / External
  • Fuel Type: Oil
  • Technology: Blue Flame Combustion

Performance & Features:

  • Designed for use with separate hot water cylinder and cold water tank
  • Efficient combustion system for improved fuel economy
  • Compact and robust design
  • Suitable for traditional heating setups

Warranty:

  • Manufacturer’s Warranty Included

What’s in the Box

  • 1 x Navien LCB700 RS/RSX Regular Oil Boiler
  • Installation Guide
  • User Manual
    Flue Included 

Important Information

  • Requires separate hot water cylinder and cold water storage tank
  • Professional installation required
  • Ensure compatibility with existing heating system and fuel supply

Customer Reviews

Based on 2 reviews
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F
Frazer C
Excellent Boiler and Fast Delivery from Trade Plumbing

I’ve been buying the Navien LCB700 RS/RSX Blue Flame Regular Oil Boilers from Trade Plumbing for a while now and have used them a lot in off-grid properties. They come with the flue, delivery is quick, and I’ve had no issues reported back from customers on any I’ve fitted. I mainly install them in farm houses and old cottages, and they’ve proved to be a solid, reliable boiler. Very pleased with the product and the service from Trade Plumbing

P
Paul
Reliable Performance

Efficient external oil boiler with reliable performance.