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unsourced claims

How Long Can You Run a Ventless Fireplace? We Traced the Number

September 8, 2026 by Roksana
Ventless gas fireplace in a cozy living room with a carbon monoxide alarm

The two-to-three-hour limit is everywhere online. We followed it to its source and found retailer blogs, not a standard. Here is what does govern run time.

Categories Safety & Legality Tags carbon monoxide, manufacturer manual, run time, unsourced claims, vent-free gas Leave a comment

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