There are numerous different cowls on the market to help cure the problems of blow downs. It is fair to say that some of these products work in certain locations, but

unfortunately some of them do not make any difference at all. A lot of chimney sweeps and technicians don’t like

recommending them because of the unreliable results.

Instead, we at County Down Sweeps, recommend the fitting of a Marcone Pot. In the years we have been dealing with the smoke problems associated with coal fires, appliances and boilers, we have found that the Marcone pot is the most

effective. If the Marcone pot does not help alleviate the

problem, then going to more radical lengths may be the only solution. There is a fan system on the market which is

basically an extractor fan fitted to the top of the chimney. The electrically powered fan creates an artificial draught in the flue and removes combustion gases and smoke etc. These products  are expensive and are usually a last resort. 

Cowls