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| "More simple means of ventilation will reduce condensation and, in particular, prevent the build up of smells and harmful gases. You can choose from Central Extract (MEV), Passive Stack (PSV) or Positive Ventilation (PIV)." Central Extract Ventilation (MEV) Spoiled air is simultaneously extracted from the 'wet rooms' through a centrally-located extract fan. Ducting connects the fan to the extract terminals in each room. Replacement fresh air is introduced into the other rooms via trickle ventilators and permeates throughout the home. This creates a clean and fresh environment within the building as the pressure difference ensures the supply air is drawn towards the rooms where the air is being extracted. Quietly efficient, there are three speeds, low, medium and high to enable effective removal of unpleasant smells and moisture from the 'wet rooms'.
Simple to install in both new and refurbished buildings, there are units suitable for small flats to large houses. Having only one external terminal, one electrical connection and discreet ceiling-mounted internal grilles means that its overall appearance is far more pleasing than unsightly individual extractor fans. To avoid the disruption of sleeping patterns, the system operates at a whisper to dramatically reduce the noise associated with bathroom fans. Everyday benefits: Contact ADM Systems and we will phone you... or call us now on 01756 701051. Passive Stack Ventilation (PSV)
The room extract terminals and inlets are humidity controlled so that the air flows will match according to demand. Movement of air within the building is created by the natural stack effect, which results from the difference in temperature between indoors and outdoors, together with the effect of wind passing over the roof of the building. The operating principle is simple, with no mechanical fan the system is extremely quiet and consumes no energy. Everyday benefits: Contact ADM Systems and we will phone you... or call us now on 01756 701051.
Operating quietly, the fan unit is automatically controlled to optimise condensation control and minimise running costs. This method of ventilation can be adapted to reduce Radon gas levels within the building. It's very simple and economic to install and particularly appropriate for exisiting properties. Everyday benefits:
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The
warm, contaminated air
rises and is extracted from each of the 'wet rooms' via ceiling- or
wall-mounted terminals connected to ducting, and expelled through the
roof.
Replacement fresh air is introduced by window/wall mounted inlets into
other rooms.
Tempered fresh air is
gently introduced from the loft by a single fan unit through a ceiling
diffuser mounted over the landing (or hallway, in a single storey
dwelling). This filtered air creates a slight positive pressure,
reversing the normal airflow. Air is now forced out of the building
taking with it unwanted moisture, smells and pollutants. The incoming
air collects solar gain from the loft and redistributes heat that
naturally accumulates at the top of the stairs.