If your home is a basic one fireplace one chimney pot affair this will obviously be a simple matter but a lot of homes will have 4 or more chimney pots that serve 4 fireplaces some of which may be blanked off bricked up or unused.
Capping unused chimney flue.
As a rule of thumb taking a common semi detached home using.
Cooled or heated air from inside your home can escape through the chimney causing your hvac system to work.
Flue ventilators can be found on our chimney pot page.
Write down your measurements so you don t forget them.
Http www fixmyroof co uk videos and guides chimneys chimney capping in this video i show 3 different ways to cap off a disused chimney that does not alter.
Insulating the bottom of the chimney.
Unused though they can waste a lot of heat up the chimney.
How to determine which chimney flue needs capping.
The fireplace flue can be a major source of energy loss.
Use a tape measure to find the length of the flue on the longest side.
The flue ventilator stops rain entry to.
Find the flue on your chimney which is the clay or metal tube that extends out from the top of your chimney.
The technician that fitted the electric boiler cut back the flue the the ceiling filled part of the flue with insulation and then applied cement to the underside.
Then find the width at the widest point.
You should cap any unused chimneys with a flue ventilator.
Last year we had our soild fuel boiler replaced by an electric boiler.
Only one chimney is still in use for a multifuel burner one was sealed many years ago while the other two have vents into the bedrooms where fireplaces used to exist.
A contracter has advised us to have the two unused bedroom chimneys piped together via an inverted y type connection and then piped out through the roof.
Sealing your older unused chimney should not be a complicated task as long as attention is paid to prevention of air intrusion as well as environmental and pest control.
Capping unused chimneys flue ventilators uk.
There are a few products you can purchase to block the chimney just above the damper.
Discussion in building started by overlandrover 14 apr 2007.
One is an inflatable balloon type product that will seal the 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.
Measure the length and width of the flue on your chimney.
Sealing and insulating the clay flue at the top and bottom of the stack will ensure the job will yield these desired results.
Even new cast iron dampers allow air loss.
When used daily as they are intended to be used fireplaces can be efficient.
