Homes built years ago were not designed for efficiency and so they leaked air everywhere. Modern homes with 6+ Star rating are much more air tight and require ventilation systems to keep a fresh feel inside without needing open windows in winter and summer. Air leaks and open windows can account for a quarter of your energy costs. This BLOG explores HRV and ERV ventilation systems available.
Case study of a period home, renovated and extended with energy efficient heat pump and a/c systems installed. Hydronic systems included underfloor in-screed circuits, radiators, hydronic towel rail and space saving fan coil convectors, with ceiling fans.