Capping Unused Chimney Flue
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When used daily as they are intended to be used fireplaces can be efficient.
Capping unused chimney flue. Capping the flue is one of the best ways to close up the top of the chimney as it will still allow air to get in and out preventing condensation from building up. Use a tape measure to find the length of the flue on the longest side. The fireplace flue can be a major source of energy loss. You should cap any unused chimneys with a flue ventilator.
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. Cooled or heated air from inside your home can escape through the chimney causing your hvac system to work. 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.
Sealing and insulating the clay flue at the top and bottom of the stack will ensure the job will yield these desired results. Insulating the bottom of the chimney. There are a few products you can purchase to block the chimney just above the damper. Measure the length and width of the flue on your chimney.
As a rule of thumb taking a common semi detached home using. 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. How to determine which chimney flue needs capping. Then find the width at the widest point.
One is an inflatable balloon type product that will seal the flue. Even new cast iron dampers allow air loss. 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. Write down your measurements so you don t forget them.
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. How to close an unused chimney. 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. Unused though they can waste a lot of heat up the chimney. Discussion in building started by overlandrover 14 apr 2007. The flue ventilator stops rain entry to.
