{"id":237,"count":1,"description":"Zehnder ComfoFond is a ground-coupled preheater\/precooler designed to work alongside a Zehnder MVHR setup. It uses the more stable underground temperature to temper the incoming air before it reaches the ventilation unit, supporting a more comfortable indoor climate.\r\n\r\nComfoFond is typically chosen to help keep supply air more stable throughout the year and to support smoother operation in colder conditions (for example by reducing the chance of frost-related interruptions). 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