Air & Moisture
Wet windows, damp basements, dry winter air and musty smells: the physics of moisture at home and the settings that keep it in a healthy range.
Humidity
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What Humidity Should My House Be? Ideal Levels by Season
Too dry and the air feels harsh and wood cracks. Too damp and mold and musty smells move in. The right number depends on the season, and you can measure it for less than the cost of lunch.
Condensation
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Why Do My Windows Have Condensation on the Inside?
Wet windows on a cold morning are a humidity gauge you did not ask for. Here is the physics, the humidity your windows can handle at each outdoor temperature, and what actually works.
Other parts of the house
- Heating & Cooling Air conditioners, furnaces, heat pumps, thermostats and space heaters.
- Water & Plumbing Water heaters, toilets, faucets, drains, pressure and water quality.
- Kitchen Appliances Refrigerators, freezers, dishwashers, ovens, stoves and microwaves.
- Laundry Washing machines, dryers, detergents, cycles and care.
- Electricity & Energy Running costs, outlets, breakers, lighting and smoke and CO alarms.