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Monday Mar 8
Natural ventilation specialist, Passivent, is able to offer a range of energy efficient solutions to ensure a condensation-free and fresh internal environment.
The company claims that its iPSV system uses the least energy of all ventilation strategies, whilst its latest development— Passivent Domestic Mixed Mode — which combines a passive stack system with heat recovery, saves energy by switching to heat recovery mode only when temperatures fall below preset levels.
Domestic Product Manager Stephen Smith comments:
"Research by the Institute of Energy & Sustainable Development shows that our BBA certified iPSV solution provides enhanced performance in ventilation and carbon emissions over mechanical systems. With growing pressure to build even more energy efficient airtight homes, it is vital to ensure those homes are properly, but effectively ventilated."
Passivent iPSV is described as a ‘fit and forget’ solution. The system uses no electricity, power source or fans to function, and has no moving parts. Strategic ceiling extracts respond to changes in humidity, opening and closing as required to extract the stale, moist air as required and without unnecessary heat loss through ducting to a roof terminal, whilst inlets allow gentle replacement air in without draughts. Wind blowing across the roof enhances extraction.
The company’s new mixed mode system interlinks the benefits of passive stack ventilation with mechanical ventilation with heat recovery, the former functioning most of the time and the latter being programmed to operate only when temperature falls below preset levels.
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