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I did replace my water heater with an electric one. I got this after that so who knows that the baseline used to be but I do have some ideas for more improvements. I may open the window a smidge to see if it makes a difference. A little hesitant since I have a newborn and it being winter and all. I'm trying to get Home Assistant to work with Bluetooth so I can link the two and turn on the bathroom fan.

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One thing I came across while looking into c02 and ventilation was the recommendation to sleep with the door closed but window open for fire safety concerns: https://fsri.org/programs/close-before-you-doze. Something else to consider when settling on a setup

Man, last night my levels jumped to 2,200. A major source looks to be the stove top as we made lentil soup. I also heard about windows: opening up the top and bottom to let hot air out and cold air in. Will try it out once we have 60º nights.

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