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The main difference between an outdoor wood furnace versus an outdoor wood boiler is what each appliance is heating. An outdoor wood furnace burns wood to create heat, which warms the air and moves it through the ducts in your home. An outdoor wood boiler uses the heat from burning wood to warm water, which goes through pipes to radiators in the home.

A properly constructed and maintained chimney crown can last 50 to 75 years. However, its lifespan can be significantly shorter—20 years or less—if it was poorly constructed, improperly installed, or damaged. Factors like using the wrong materials or failing to prepare the brick around the flue can lead to moisture buildup and premature breakdown, potentially resulting in a more costly rebuild.

The cost difference between a gas fireplace and a wood-burning fireplace depends on the type of wood-burning fireplace installed. The cost to install a gas fireplace tends to be cheaper than the cost to install a brick wood-burning fireplace. Installing a gas fireplace costs about $3,600 on average, whereas the cost to build a masonry wood-burning fireplace can go up to $30,000. The cost to install a wood-burning fireplace insert or stove can cost from $700 to $6,500, about the same as a gas fireplace on average.

A well-constructed and regularly maintained brick chimney can last 50 to 100 years, potentially spanning multiple generations of homeowners. The exact lifespan depends on the quality of construction, materials, local environment, and maintenance. In contrast, a metal chimney typically lasts 15 to 20 years. While the main structure is durable, individual components have shorter lifespans and require more frequent replacement. For example, mortar may need repointing every 20 to 30 years, chimney crowns last 50 to 75 years, and liners can last anywhere from 15 to 50 years depending on the material (e.g., stainless steel vs. cast-in-place).