Lüften

By RUBEN JAN K DEPOVER on AppTrack Ninja.

Cool your home naturally

Open your windows at the right moment. Close them before the heat gets back in. Lüften watches tonight's forecast and tells you the two moments that matter: when outside has cooled enough to bring fresh air in, and when it's about to warm up again. That's it. WHY IT WORKS Passive cooling — moving cool night air through your home — is one of the most effective ways to keep a house comfortable without air conditioning. The problem is timing: open too early and you let warm air in; wait too long and you miss the cool window. Lüften solves the timing problem. WHAT YOU GET • An alert when outside …

Categories: Utilities, Weather

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