The damper, located just above the firebox, can open or close the chimney flue. The damper should remain closed unless there’s a fire burning in the fireplace. Closing the damper prevents energy loss through the chimney and cold air from seeping into the home during the winter. Opening the damper helps maintain airflow when there is a fire and prevents smoke and gases from venting into the house.

Yes, it is possible to convert a wood-burning fireplace to gas. The average cost for this conversion is $3,000, with a typical range of $500 to $5,500. The project involves running a gas line, professionally cleaning the chimney, and installing gas logs.

Cost factors include the type of gas fireplace and whether a new gas line is needed. Installing a natural gas line can add $200 to $1,000 to the cost. Vented gas fireplaces are more expensive, averaging around $5,000, while ventless options are more cost-effective at about $1,500.

A fireplace can increase a home's value by as much as 12%, with some reports indicating that homes with fireplaces list for around 13% more than the median sale price. Fireplaces are both functional and aesthetically pleasing, adding a charm that many homebuyers find desirable. The actual return on investment depends on the fireplace's size, type, and material.

However, a fireplace can detract from a property's value if it is unusable, not up to code, or in need of immediate repairs. The type of fireplace also matters; custom electric fireplaces and inserts can add value, while freestanding units that can be removed have less impact.

Removing and demolishing a fireplace is extremely labor intensive work that also takes a long time. You need to use brute strength to break apart the brick and masonry, and carry the debris to a dumpster. Depending on the size of the structure, you may need multiple days to fully remove it. After removal, you need to determine how you will repair the wall that held the fireplace, which can also be quite time consuming and challenging.