In homes that have a gas furnace, it's typically the heating system that uses the most gas. That explains why your gas bill is almost always higher in the winter and other colder months than it is in the summer. Other appliances that may use gas include your water heater, clothes dryer, and stove.

Gas fireplace inserts are considered the most efficient because they convert more of the fuel source—gas—into heat. They offer excellent heat output per the amount of fuel they use. While electric fireplace inserts are praised for their efficiency, keep in mind that they don’t offer as strong a heat output but may still be a great choice if you want an efficient option.

Yes, removing a chimney is a difficult and major undertaking. Chimneys often provide structural support to a home, so if it's a load-bearing structure, you'll need to take extra precautions to maintain your home's integrity. A project of this complexity typically requires a structural engineer, a masonry contractor, and a demolition crew. The removal process may involve taking the chimney out brick by brick from inside the walls. The cost for chimney removal can range from $2,000 to $10,000, depending on the job's complexity. Due to the difficulty and cost, some homeowners opt to remove the fireplace and seal the chimney at the top and bottom, sometimes also removing the visible exterior portion at the roofline.

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.