New system installed by Mercury in a new home definitely not working. Humidity is 70-85%, mold growing in every window due to poor ventilation, windows covered in condensation and this winter we had the most expensive heating bills we ever have had in a house On Vancouver island. We have asked for help but they indicated they are not responsible as they did what the builder wanted. So far neither the builder or mercury are willing to remediate without us paying for them to do the work which doesn't seem right In a brand new house... read more