The 8 to 4 REDUCER is an Irish designed and manufactured chimney cowl that reduces the effects of an overdrawing chimney.
The 8 to 4 REDUCER chimney cowl reduces the outlet of the chimney pot from the standard 8″ to 4″, restricting the amount of smoke that can drawn up the chimney at any one time, so increasing fuel efficiency of your appliance and heat output to the room.
The 8 to 4 REDUCER is made from 316 stainless steel and is suitable for all solid fuel appliances.
A universal fitting fits all 8″ 200mm internal diameter chimney pots.
Should ONLY be used when the overdraw occurs on both still and windy days.