Why do I need a flue for my oil boiler?

Grant Vortex condensing boilers need to be connected to a flue to remove the combustion gasses.

Even if you are replacing your Grant boiler with a new version, you will require a new flue system too. It is not possible to connect to the old existing flue or liner, due to build up of debris, which could fall back into your new boiler and affect its performance.

EZ-Fit Flue range

Grant has a range of unique EZ-Fit Flues. These are available as low level, high level or vertical kits, for internal and external applications, and even as unique EZ-Flexi liner packs, designed to enable condensing boilers to utilise an existing chimney. It is also possible to convert existing low-level flues to high level after installation.

Apart from the benefits of so many options the Grant EZ-Fit flue systems ensure ‘pluming’ is kept well out of the way of any windows, air vent or doors and out of sight.

The flue terminal (end part of flue situated externally) should be positioned so as to avoid combustion gasses accumulating in stagnant pockets around, or entering inside the property. Care should also be taken that the plume from a condensing flue does not cause a nuisance.

Individually designed conventional flue systems for modular boiler installations

We offer a unique customised design service, where two or more boilers are connected in a modular form to a single conventional flue stack. This service includes the design and supply of flue headers and flue systems for condensing boiler installations and is available to merchants upon completion of a simple site survey form. Contact our technical department on: +44 (0)1380 736920 for further details.

Case Studies

Grant Vecta External heating remote barn in Settle

A beautiful barn conversion in Settle, North Yorkshire, is now home to one of the first Grant Vecta external biomass boilers, providing environmentally friendly heating for years to come. The rural stone barn belongs to Charles and Lauren Fazackerley of Blaithwaite Developments. When designing and developing the property, Charles andRead 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

Local Authority upgrades sheltered housing with Grant

Sheltered housing schemes in Archway Gardens and Willow Road featuring renewable products from Grant UK, have been instrumental in helping Stroud District Council (which won the prestigious 2010 Green Energy Award for being the South West’s most proactive Local Authority), with its green housing energy initiative. The award recognises theRead More