No, there are no ventless pellet stoves. Because pellet stoves burn wood pellets, they produce wood smoke—which contains carbon monoxide. This harmful substance needs to be vented out of your living area. That said, there are vent-free and ventless fireplaces that run on natural gas and propane. These offer the heating and ambiance of a fireplace without the need to vent thick and hazardous wood smoke.

Not all gas fireplaces need a chimney. If you install a ventless gas fireplace, it will release low levels of combustion byproducts back into your living space (instead of pushing them outside through a chimney or vent). Ventless fireplaces burn fuel efficiently, so the emissions are minimal—but they could bother people with allergies or respiratory issues.

Homeowners insurance may cover chimney leaks, repairs, or replacement, but coverage depends on the cause of the damage. If the chimney is damaged by a sudden, covered peril like a lightning strike, storm, hail, fallen tree, or an unexpected fire, your policy is likely to cover the costs. However, insurance generally does not cover damage resulting from normal wear and tear, old age, or a lack of proper maintenance, such as failing to perform regular cleanings and inspections. If a fire or other damage is caused by a known issue you didn't address, the claim may be denied. Additionally, some policies may have specific exclusions for events like high winds or earthquakes.

A fireplace is, by definition, an enclosed space where you burn wood or other fuel for the purpose of generating light and heat. A firepit burns wood and is much less expensive to build, but they aren’t technically a fireplace as it isn’t enclosed. An outdoor oven—commonly outdoor brick pizza ovens—often uses wood as fuel, but its primary purpose is to cook food, and you’d rarely just burn wood inside them for warmth or aesthetic reasons.