Energy efficiency expert Mark Shirley of 2eva.ie has just completed a whistle stop tour of ISH in Frankfurt, one of the world's largest building industry expos, where he found passive house solutions featuring heavily amonst the heating and ventilation solutions on offer.

As more and more people upgrade their homes to make them more energy efficient, it’s crucial for them to consider installing some sort of ventilation system to keep them healthy. Astrid Madsen compares heat recovery ventilation to a relative newbie on the Irish market, demand controlled ventilation.

As fossil fuel prices rise, the need for energy efficiency in achieving both is increasingly leading Irish people to an approach which combines both ventilation and heating,