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

Colchester United has gone to the green side with a 72kW Spira

The Florence Park training ground of Colchester United Football Club is now being kept warm by a Grant Spira biomass boiler. The heating system at the premises was previously fuelled by LPG so, since the installation of the 72kW Spira, the club is now benefitting from cheaper fuel costs andRead More

Grant biomass boilers are keeping installers busy

The social media feeds of Dryad Energy Ltd have been filled with red recently – red Grant Spira biomass (wood pellet) boilers! Dryad Energy has been incredibly busy installing Spira boilers in domestic properties throughout the South with photos from these installs occupying their newsfeeds. We have been speaking toRead 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

Installer promotes advantages of renewable heating

Long established plumbing and heating installers, Great Yarmouth Heating Company Ltd, is promoting the benefits of energy saving, by kitting out their premises with an array of Grant MCS approved renewable technologies. Based on Gapton Hall Industrial Estate, GYH was founded in 1971 and has installed, serviced, and maintained GrantRead More

Spira biomass boiler takes residence at Steadings Park in Suffolk

Steadings Park, a campsite and caravan touring park in Suffolk, recently installed a Grant Spira biomass boiler as an environmentally friendly, cost efficient solution to heating their newly built state of the art shower block. Located near a nature reserve in the beautiful back-drop of the Suffolk countryside, Steadings Park’sRead More