Whole-house condensation control using an efficient PIV ventilation system from a single loft-mounted unit Integrated 400W heater tempers incoming air, helping maintain comfort during colder months Positive Input Ventilation (PIV) gently introduces dry, filtered air to reduce moisture and stale air Quiet operation with the PIV unit installed within the loft space for minimal noise Ideal PIV ventilation system for properties affected by condensation and stale air build-up
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