It is always a good idea to have a chimney cap covering your chimney. The cap serves two purposes: To keep the rain out of the flues and off the crown, preserving the chimney integrity, as well as keeping any unwanted animals out of the flues. We install both stainless steel and copper chimney caps, measuring out proper sizes depending upon the individual chimney.
A damper is the device that opens when you are having a fire and closes to keep the heat loss minimal when you are not using your fireplace. You can have a throat damper that sits right above the firebox or a top sealing damper. The throat damper is most common in homes. Top-sealing dampers mount on top of the chimney and a cable is run down the flue attaching in the firebox. They are considered the most efficient damper because of the tight seal at the top of the chimney due to the rubber gasket. We install many top-sealing dampers.