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How To Seal Off Unused Drafty Fireplace Chimneys Using Lock-Top Chimney Dampers

Updated on September 26, 2013

Stop Any Leaky Chimney

Energy efficiency is a top priority in today’s economy. Caulking windows, venting the attic, and adding insulation can be great ways to seal off the house from energy leaks. There is an underlying energy stealer lurking in the home without any notice. The fireplace, wood burning stove, or an unused chimney can be leaking air-conditioning and heat, causing the appliances to work harder. A traditional fireplace that is never used can be the biggest energy theft in the house because it lets cool air-conditioning pour out the chimney in the summer and precious heat loss in the winter. Adding a top lock chimney damper is a great way to seal the air into the house and lower your energy bill.

Top locking chimney dampers are easy to install for any DIY homeowner. The damper easily mounts on any clay flue or brick surface with a high temperature silicone adhesive. A cable runs down the flue into the firebox where a bracket is mounted to open and close the damper. Some top lock chimney dampers are made with a built on chimney rain cap with a screen cage to prevent birds or critters from entering the chimney while the chimney is in use. Whatever the climate may be, adding a lock top damper will ensure a sealed fireplace, with no wasted energy.

Easy Installation

Save Wood

For a traditional fireplace that is being used, there are some top lock dampers that can control the exhaust of the fire allowing a controlled burn. If homeowners are able to control the burn of a traditional fireplace they can also save the amount of wood they are going through. Being able to control the burn will allow you to have a longer and hotter burn for the amount of wood being used.

Chimney- balloons, what is it and how does it work.

A chimney balloon is the perfect and economical choice to seal off any traditional fireplace or chimney. It’s designed to inflate to a wide range of sizes to fit any chimney. The chimney balloon is made of a strong plastic material preventing the balloon from puncturing and popping in a chimney with sharp corners or mortar in the flue. The chimney balloon will also deflate itself if you forget to remove the balloon before lighting a fire. Simply inflate the balloon with any air pump and you no longer have to worry about a drafty chimney opening. The chimney balloon has a valve for easy deflation. Chimney balloons are a great solution to stop any drafty chimney.

Pipe Dampers

Many older woods stove were made without any vent control damper on the unit. Adding a Pipe damper can allow a more controlled and efficient burn for your woodstove. Restricting the vent flow when the stove is hot can slow the burn down, allowing the wood to last longer, in return using less wood to heat your home. Pipe dampers are never meant to shut 100%. If you were to constrict the flow of the exhaust gasses, the gasses would spill into the home causing an odor and dangerous carbon monoxide. So unlike the traditional fireplace dampers that can be shut all the way, the wood stove dampers have to constantly vent. Having the stove sealed into the chimney will allow no energy to escape. The pipe dampers and be a great way to cut down on the amount of wood you have to cut down.

Top locking chimney dampers are modestly priced and will be a job that will not take longer than an hour. The costs of top locking chimney dampers are comparable to the cost of a stainless steel single flue cap. For the same amount of money you would spend on a rain cap, you can have an energy efficient leak free home. Take a look at some of the styles of chimney dampers and decide what is best for you.

Pipe Damper


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