Chimney Flue Lining Problems
Based on the kind of fuel you use, condensation could be the main cause of your chimney flue lining problems. It might be that your flue lining has an incorrect cross sectional area. Typically, solid fuels need a larger than average flue area, as they produce more gas at a higher temperature. Chimney flues used for evacuating gasses from solid fuels are exposed to temperature levels that impact on the jointing and flue surface. Ultimately, over the long term, this will cause leakages.
Obviously, the rate of deterioration will depend on the materials used to build the flue. Standard cement lime mortar can be vulnerable to “acid attacks”. Also, another issue is the accumulation of creosotes and tars – if these are not regularly swept away – which will cause chimney/soot fires. Such fires are horrific events that can pass by unnoticed (for those who are fortunate), or lead to significant damage to your building. In any case, normally, you are left with a chimney that leaks.
Liquid fuel burns at a far lower temperature in the flue, however it does deposit a large quantity of acidic and moist residue inside the chimney (or, in other words, condensation). The products resulting from combustion cool down, prior to leaving the flue. Consequently, within the flue, a dew point arises that leads to acidic condensates dripping back down the flue’s interior. This harms the flue appliances, décor and jointing.
Clearly, there are several alternative explanations for leaking flues, aside from those linked to the running of appliances for certain time periods. One explanation is incorrect construction. Examples of this include topsy turvy liners, obstructions that produce flue gas turbulence, and badly jointed flues.
Flue lining can have a positive impact on your energy rates, your chimney’s longevity and the environment. Chimney flue lining allows you to comply with the necessary building regulations, boost your chimney flue’s lifespan and enhance the efficiency of your appliance. Indeed, installers and manufacturers of eco friendly appliances endorse chimney flue lining for efficiency improvement. A chimney flue can even save lives, as it reduces carbon monoxide poisoning risks.
