Insulating the bottom of the chimney once you ve capped the top of the chimney you will need to insulate the bottom of it.
Capping off a chimney flue.
Unused chimneys not only waste a lot of heat they also pose a potential damp problem as well as being a cause of smoking fireplaces and stoves.
Buy a cap that has the same length.
You should cap any unused chimneys with a flue ventilator.
However a standard chimney cowl can provide a good alternative to capping a chimney or if you think you may use the flue later to connect an appliance.
Capping unused chimneys flue ventilators uk.
The flue ventilator stops rain entry to the chimney but still allows a small amount of air passage for ventilation.
Find the flue on your chimney which is the clay or metal.
Get onto your roof with a ladder.
Use a ladder that extends at least 3 feet 0 91 m above your roof so you can.
Chimney cowls for capping chimney cowls are normally used to adequately ventilate chimney flues connected with an appliance like gas fires open flame gas fires wood burners coal fires etc.
Measure the length and width of the flue on your chimney.
Flue ventilators can be found on our chimney potpage.