Service & Installation

At  I & S Stoves we have over 15 years experience in the trade,we began sweeping chimneys right through to lining chimneys, building fireplaces and installing woodburning and multifuel stoves.  

Ian has over the years built up specialist knowledge of  fitting stoves and flue systems. If you are interested in installing a woodburner and are situated in our local area we can carry out a site survey, assessing the work required and advising on the size and type of stove to suit the location.

Woodburning and multifuel stoves should be installed in accordance with current Building Regulations. We can advise on the necessary requirements and if fitted by us, we can issue a Hetas Certificate of compliance

CHIMNEY LINING

There are several good reasons why we would advise lining a chimney when installing a woodburning or multifuel stove. Stoves should be connected to a sound chimney that has the correct size flue. Some problems that may be encountered if not lining the chimney are as follows

  • If it is an old flue smoke and fumes may leak into other rooms or parts of the building

  • Tar may seep through the chimney walls causing staining

  • The flue may be too large for the stove resulting in poor updraught and possibilty of condensation and tar forming 

  • The flue may be  too cold and damp especially if it is an outside wall reducing the heat and draw in the chimney

Building Regulations state that a 6 inch 150mm liner should be fitted when connecting to a woodburning or multifuel stove, if the stove has smaller outlet ie 5 inch 125mm then it should increased up to 6 inch 150mm using an increasing adaptor.   The only exception to this a Defra Approved Smoke Exempt stove with a 5 inch flue outlet which may be connected to a 5 inch 125mm liner.

Before fitting a new chimney liner it is important to sweep and clean out the exisitng flue.

A good quality liner should always be fitted, there is huge a difference in quality of 316 and 904 liners available and you do get what you pay for. With our experience we have found Poujoulat liner and twin flue systems to be excellent quality and this is what we supply if you buy on-line or have a stove fitted by us.

INSULATING THE CHIMNEY

Chimney Liners do not always require insulating and it is not a requirement of Building Regulations, however ther situations when it is important to insulate the flue.

  • very wide inglenook type flues where the liner is in a large cavity and may be colder and may not draw very well.
  • tall chimneys may also suffer from a similar problem taking a long time to warm up and create good draw
  • Old chimneys which even after cleaning out still have tar residue stuck to the sides insulating helps keep the liner away from the sides and prevent possible fires between the liner and chimney walls.

INSULATING MATERIALS

There various types of insulation that can be used, our prefered product is Rockwool sleeves which fit snugly around the liner, they are easy to use and easily removed if in future it is necessary to access the liner and chimney.

We do not use Vermiculite unless there is no other choice ie the cavity is too narrow to fit the rockwool sleeve. The reason for this is that it  will run everywhere and you cannot see exactly where it is going, it is messy to use and if access to the chimney is needed in future it will have to be removed and will run everywhere! Vermiculite will also readily absorb moisture, if a chimney is old, the pointing is poor or a leak developes the vermiclite will just get wetter and colder resulting in the flue being permanently cold and affecting the draw on the chimney.

 

 

 

To view a copy of current Building Regulations relating to stove intallation click on the link

 http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADJ_2010.pdf

 

 

We are a Hetas Regstered Company (official approved body for the solid fuel industry)   Hetas