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The answer can vary widely based on a home's age and design. As with any type of remodeling project, assume that every structure is load-bearing until confirming otherwise with a structural engineer. Almost all modern homes have chimneys that are fully independent from the rest of the home's framing. As a result, they don't bear any load beyond their own weight. However, many historic homes built prior to the 1900s contain load-bearing chimneys that tie into the surrounding roof and floor joists. If possible, use a home's blueprints or look for chimney connections that indicate load-bearing qualities to get your answer.

Neglecting to clean your chimney can lead to serious safety hazards. A primary risk is the buildup of creosote, a highly flammable substance that can ignite and cause a dangerous chimney fire. This buildup can also create blockages in the flue, resulting in poor venting of smoke, soot, and toxic gases like carbon monoxide, which can then enter your home and create dangerously poor indoor air quality. Additionally, creosote is acidic and can damage the chimney's mortar and metal components over time, potentially allowing smoke to leak into your house. To prevent these issues, it is essential to schedule an annual chimney cleaning with a professional.

A chimney liner is held in place by a top plate and attached top clamp, both of which should be included in most chimney liner kits. The top plate seals to the top of the chimney flue and attaches directly to the liner. This not only holds the liner in place but supports its weight in the chimney.

Both wood stoves and fireplaces are effective at heating, but wood stoves are more efficient, meaning more of the fuel is converted to heat rather than lost. Wood stoves, depending on the capacity, can also heat larger spaces, while fireplaces are better for heating smaller areas, like an individual room.