EZ-Fit Vertical conventional flues (Orange System)

Grant EZ-Fit Orange System - blackAs many older oil fired boilers are traditionally connected to conventional flue systems, updating to a modern condensing boiler often results in the appliance needing to be relocated. The Grant EZ–Fit Conventional flue system (Orange system) has been specifically designed to enable the existing chimney to be re-used and the boiler retained in its original position.

Flexi Packs

We have developed a range of EZ-Fit Flexi packs containing all the components required to utilise the existing chimney, including a smooth bore stainless steel flue liner, terminal, clamp plate and connectors for both the flex and boiler. All that is required to complete the installation is extension pipes or elbows from our Orange system accessories range. Please note: the flexi liner should be installed with the directional arrows pointing upwards only

Pluming

Condensing boilers operate at extremely high efficiencies with cool flue gas temperatures, resulting in a plume of vapour being visible at the flue terminal. This pluming (steam) is a normal condition of condensing boilers and indicates that the appliance is working efficiently. As an alternative to a Low Level, High Level, or Vertical balanced flue kit, utilising the original chimney with a Grant conventional Flexi-pack moves the plume of vapour above roof level.

Combustion

An adequate permanent air supply is required for the safe operation of all open-flued (conventional flued) oil-fired appliances. For new or replacement boilers in properties built prior to the latest change to the Building Regulations (pre Approved Document L1A 2006) in England and Wales this ventilation must be in accordance with BS5410: Part1:1997. For installations in properties built or refurbished under the above current Building Regulations, the first 5kW of output should no longer be omitted for the purposes of calculating the ventilation area required.

Features

  • Suitable for Grant Vortex boilers up to 70kW
  • Maximum vertical height (from top of boiler) = 19 metres
  • Designed to enable an existing chimney to be utilised.
  • Available in 6, 8, 10, 11, 12, 14 and 16 metre flexi packs
  • Quick and simple to install
  • 100mm flue pipe diameter for boilers up to 46kW
  • 125mm flue diameter for boilers from 46-70kW
  • Smooth bore flexible stainless steel flue liner, specifically designed for condensing boilers
  • Single skin white powder coated extensions available in 150mm, 250mm, 450mm or 950mm fixed lengths and a 235-300mm adjustable length

Case Studies

Green heating for 18th century estate

A historic Derbyshire country house, set in over 300 acres of trees and parkland is captivating visitors with its green approach to heating, by prominently displaying Grant Renewables in its gardens.  The magnificent family owned Locko Estate is the current ancestral home of the Drury-Lowe family.  It dates back toRead More

Primary school cuts costs with Vortex boiler house

Crowenstown National School, one of the oldest primary schools in Ireland, founded in 1841, has installed the very latest Grant Vortex Pro Condensing boiler house boiler, to help cut energy costs. The original building was demolished in 1938, replaced with the current school which has three classrooms, a staff roomRead More

Out with the old and in with a new Grant Vortex

A three storey property in Argyll has recently upgraded its heating system with a Grant Vortex oil-fired boiler which is working alongside a Grant energy management control system, providing warmth throughout the building. Vortex oil-fired boilers are renowned for their efficiency, but the effect of energy management controls can sometimesRead More

Out with the old and in with the Blue!

Since its launch last month, demand for the innovative new Grant VortexBlue oil-fired condensing boiler range has been high. Dempsey Heating Ltd, a Grant UK G-One accredited installer, was one of the first to fit the new blue flame boiler which is now keeping a home in Norfolk warm withRead More

Grant Renewables provide solution for Grade II building

The Sail Loft, a Grade II listed building in Cowes on the Isle of Wight has undergone a major refurbishment to provide open plan office space for a charity which is looking to expand. To make the building as energy efficient as possible, a range of renewable technologies from GrantRead More