A home without a proper appliance liner can be very dangerous. As chimneys age the current clay tiles inside can begin to deteriorate allowing for blockages to occur leading to harmful gases coming back into your home. These same gases produce water/moisture vapors that bleed through the masonry, attacking the brick and joints in its path. When a flue is either unlined or oversized, condensation will always takes place. This condensation will slowly overtime deteriorate the chimney, leading to spalling, missing mortar joints, and cracked crowns. It is important to have our professionals inspect and install a proper size liner that accommodates your homes current venting appliances.