Eldfast Chimney Relining

Eldfast Chimney Relining – HETAS Approved System

The Eldfast system is the best type of chimney lining available. It comes with a 20 year guarantee and it doesn’t deteriorate if you have a chimney fire. It can be used to line a chimney where a fireplace is already installed without any need for knocking into the brick. There are other cast in situ lining systems out there but they don’t last as long or have as long of a guarantee.

What is Eldfast?

Eldfast is a ceramic material that is composed of two elements: a refractory ceramic aggregate in powder form and a resin bonding agent that together creates a “slurry” with adhesive properties when applied under pressure.

Traditional methods of relining flues consisted of materials that contained water, lime/clay mortar or cement. These materials are known to be prone to acid attack and deterioration. Eldfast chimney lining is a specialist method of fixing a leaking chimney and MOM Services Ltd are proud to be approved installers of the Eldfast system for the whole of Ireland. We cover all the counties for Eldfast installations and chimney CCTV inspections.

Eldfast chimney lining is also suitable for thatched properties.

Why Eldfast Chimney Relining Should Be Used

  • Reline leaking flues without having to remove the fireplace
  • It is suitable for all solid fuel types
  • It is suitable for stoves and open fires
  • It provides unique applications to smaller flue voids, eg., clay liners, old chimney chambers, etc
  • It is designed to minimise disturbance to the household during installation
  • It has been tested to temperature of 2,000 degrees centigrade
  • It is guaranteed to survive a chimney fire
  • It doesn’t contain any acidic content and it withstands acidic condensation
  • Increases the draw of the fire, as flue gases travel faster through the flue
  • Keeps the sectional area of the flue

Our Eldfast fitters are all highly skilled chimney engineers. It takes time and experience to become HETAS approved.

Eldfast Chimney Relining Process

Unfortunately, leaking chimneys are quite common and over time weather, frost damage, condensation and even chimney fires can contribute to a leaking flue. When this happens you may experience the smell of smoke indoors, poor up draught, chimney fires, and, in the worse cases, carbon monoxide poisoning. This is where chimney relining can help. Eldfast is a modern, ceramic lining and repair agent that is suitable for use on concrete block, brick, and clay flues. The nominal coating thickness also ensures that vital minimum flue measurements are retained. The use of this method is also more cost effective and there is very little disturbance to your actual chimney. It has also been tested up to temperatures of 2000 degrees.

Before your chimney can be relined, inspection and preparation is required. This involves a pre-instalation survey to ensure that you have a structurally sound flue that is suitable for lining. This can also include carrying out a flue smoke test to highlight any defects.

After the inspection, MOM Services Ltd will complete a thorough clean of your flue to remove soot, tar, and any loose particles.

The lining of your flue is next and this is done by means of a “plug” which is inserted at the base of the flue opening. The plug is then winched up into the flue to the point where the lining will commence. Mixed material is then poured in slurry form onto the top of the plug and continually “refreshed” as the plug is pulled through the flue, applying the lining under pressure to the walls. The plug can be pulled through more than once if required to achieve a continuous lining that is to our satisfaction.

The plug is a small 3ft balloon attached to a self regulating compressor. The balloon method is used for flues that change in diameter or have limited access. This method applies the material to the flue surface under pressure.

The finished surface of the lining will normally appear slightly granular and may be ridged in appearance due to the application. The lining will harden by a gradual process of air curing and you will begin to notice hardening approximately 30 to 60 minutes after the application. If there is a warm ambient air temperature with a steady up draught through the flue it will be fully hardened after two days and once all the criteria given to you by the installer has been followed.

Once completed, the lining will be checked for any imperfections.  This is done using our CCTV survey equipment which is once again passed up your chimney.  This system of lining is generally completed in one day and on completion the client is advised to refrain from using the appliance/fire for a minimum of 24 hours. You will be provided with a hotair blower, which will be turned on by the installer prior to leaving.  This should remain running for a period of 24 hours to ensure that the process of curing the lining is initiated.  After this period a small fire can be lit for a further 24 hours, before using your fire or appliance as normal.

Take a look at our video below to see exactly how Eldfast chimney relining is carried out.

Key Benefits of Eldfast Chimney Relining

  • HETAS approved
  • Suitable for stoves and open fires
  • Resistant to thermal shock from chimney fire
  • Resistant to attack by acid condensation
  • Eldfast, a ceramic material, does not contain any lime or concrete and can therefore withstand continuous exposure to extreme temperatures

After lining with the Eldfast system you will have a chimney that is leak-proof, very hard-wearing, completely fireproof, and gives a better up-draught as a consequence.

For more information about our chimney relining services or to arrange your on-site survey contact us today.