Are vent free gas stoves safe?
On One Hand: There Are Some Potential RisksA vent free gas stove vents its exhaust directly into the structure in which it’s installed. While gas stoves tend to burn very cleanly, one possible exhaust product is carbon monoxide (CO), a toxic gas that can cause confusion, nausea, and death. Another is water vapor, which may result in physical damage to the structure.On the Other: The Risks Are MinorAll post-1980 vent free heating systems include an Oxygen Depletion Sensor (ODS) that turns off the flame if oxygen levels fall too low. Vent free gas stoves also have a catalytic filter that removes at least 99 percent of the CO and water vapor in the exhaust.
