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Chimney liners often benefit from insulation, though it is not always required. Insulation helps improve the liner's efficiency by keeping flue gasses hotter, which enhances draft and reduces creosote buildup. It also prevents condensation, which can lead to corrosion. Insulation is important for chimneys on exterior walls or in colder climates. Some building codes may require insulation, so checking local regulations is essential.

A fireplace that doesn’t require a chimney is simply called a chimneyless fireplace. Don’t confuse these with ventless fireplaces, however. There are some fireplaces that require ventilation via a system of pipes, not a chimney. More specifically, the fireplace in question will likely be called by its name, such as electric, ethanol, or balanced flue.

In some aspects, yes, new wood stoves are better than old ones. For example, today’s EPA emission limits for wood-burning stoves are much lower than they were several decades ago. Stoves that meet these stricter standards produce less air pollution, reduce fire risks, and decrease your risk of inhaling harmful particles.

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.