I have 4 Combination detectors (Fire and Carbon Monoxide) in the house....3 downstairs and 1 upstairs...
PLUS I have two Propane/explosive gas detectors (one between the kitchen and fire place, the other next to the fireplace in the bedroom). I want to get 2 more,
so I can put one right by the stove and the other right by the fireplace, and put one upstairs, near the gas water heater.