In this blog post, David McHugh of Irish heat recovery ventilation manufacturer ProAir recalls the story of the company, from its foundation in his spare bedroom right up to its recent passive house certification 

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.