Originally Posted by IFIXH20
Although the unit is vent free and probably equipped with a oxygen depletion sensor it still produces carbon monoxide. I would install a carbon monoxide detector incase the oxygen depletion sensor fails.
I agree, those things scare me. On the other hand, I've always wondered why a gas appliance such as a water heater requires a flue, while a gas range, clearly capable of burning a lot more gas, doesn't...