Navien LCB700 36kW Internal Oil System Boiler | Boilerhut

Navien LCB700 36kW Internal Oil System Boiler

Price: £2,655    each, inc. VAT | Ex. installation | 3-10 years finance available.

The Navien LCB700 36kW oil system boiler is a reliable heating solution that efficiently provides hot water for residential use. This boiler model boasts a sturdy build and features high-quality stainless steel heat exchangers, making it a durable and long-lasting option for homeowners.

What sets the Navien LCB700 apart from other oil boilers is its innovative Blue Flame technology, which ensures efficient combustion and reduces emissions, making it an environmentally friendly choice. If you’re considering the Navien LCB700 for your next oil system boiler, here’s a quick review and technical specifications to help you gather as much information as possible.

  • Heat output: 36kW
  • Stainless Steel Heat Exchanger
  • 10 Year Warranty

(Boiler-only price: comparing five or more suppliers, including Screwfix and Plumbase. Correct February 2024).

The Navien LCB700 36kW Oil System Boiler is a modern condensing boiler with a high efficiency of 93%. It offers a range of innovative and technologically advanced features. For example, Blue Flame technology gives superior efficiency and guarantees low NOx emissions.

Navien LBC700 Stainless Steel Heat Exchanger

Navien LBC700 36kW Stainless Steel Heat Exchanger.


  • 93% / A rated efficiency
  • Stainless steel heat exchanger, making it highly efficient and durable
  • Hydrated Vegetable Oil (HVO) compatible
  • Premium oil system boiler for a great price
  • 10-year warranty
  • Modulation rage of 1:10
  • Also available in an external version and available in 21kW and 28kW system boiler versions

Size and Installation

  • 36kW oil condensing system boiler
  • Integrated expansion vessel
  • Easy to install


  • Easy to use controls
  • 3-zone ready – control up to 3-zones out-of-the-box
  • Smart thermostat compatible such as Tado and controlled via a smartphone

Environmentally Friendly

  • Blue Flame technology burns fuel at a higher temperature to ensure less emissions
  • Low NOx emissions for reduced environmental impact
  • 1:10 modulation enables running at reduced power output
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