Home Ventilation

HEX390 Domestic Ventilation System

We are installers of the Hex390 Ventilation System, which comes with a 5 year warranty.

Balanced  Ventilation

The HEX390 is a ‘balanced pressure’ system. It extracts air from the house and at the same time brings fresh air in. These two streams of air pass through a heat exchanger, which warms incoming air in winter and cools incoming air in summer. This means that up to 80% of the energy which would be wasted using a traditional positive pressure system is recovered by the HEX390, resulting in significant energy savings and therefore cost savings.

Traditional home ventilation systems are ‘positive pressure’. They bring air in from outside via the roof space and force the stale air out through gaps around windows and doors. The incoming air from these systems has to be heated or cooled to keep the house warm in winter or cool in summer

 Home Comfort

Until recently, balanced pressure ventilation systems have been considerably more expensive than traditional positive pressure systems. However, with Smooth-Air’s unique manufacturing capabilities, a HEX390 balanced pressure system can be installed for a similar price as a traditional positive pressure system.


Happy Clients

Caro Imrie

“Outstanding/ great service, great guys and all round fantastic - would highly recommend and definitely use again”

Shona Boniface

“Great communication, reasonable price and job completed neatly and professionally”


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09 393 HVAC (4822)