A chimney liner or flue as its popularly known is the inner portion of the chimney that contains and channels the products of combustion. For the liner to work effectively, it must be free from perforations, cracks, or damage of any kind. When the flue is ineffective, it allows moisture, creosote, smoke, and carbon monoxide to get into the living spaces of the house.
When you notice that the products of combustion are getting into your house, you should consider relining your chimney. In most cases, repair chimney liners are made from either rigid or flexible stainless steel.
How to install liners
Before you install the flue you need to first determine the right diameter of the units. If you have a wood stove you should consult the manual for the correct diameter. If the chimney is for an open fireplace, you should take a look at the chimney’s chart.
If you can’t find the manual or the chart, you should consider measuring the length manually. Here you should measure the length from the top of the chimney crown to the area where the bottom termination stops. For you to have enough liner you should add additional 12 inches.
You should then purchase the right unit for your chimney and then install it from above. To draw the flue into place you should engage a winch. When drawing the liner you need to be careful and do it slowly in order to avoid damaging the unit.
Once in place you should screw the plates on the bottom. The plates aid in ensuring that the flue is held in place. They also prevent smoke from escaping from the smoke chamber into the house.
After doing this you should pour a mixture of cement and vermiculite between the chimney liner and chimney stone. The purpose of doing this is to insulate the chimney thus allowing it to heat quickly. Insulation also aids in preventing heat loss. Experts say that insulation aids in keeping the chimney clean for a long time.
These are the steps that you should follow when installing a liner. When deciding between a rigid or flexible liner, you should remember that while a rigid liner has smooth walls, it’s more complex to install than the flexible unit.
Whether you buy a flexible or rigid unit, you should ensure that you buy it from a reputable store. This way you will be sure that you are buying a high quality product.