You just don’t know what you don’t know till someone who does turns up. Within 2 minutes of being in the house Nelson from the Palmerston North City Council had solved a problem that had made life less pleasant for 25 years – retained heat at night in the height of summer. “Open one window, and put the fan at an open window at the other end of the house, so it blows the warm air out – not on to you!” Now so many have heard about this idea and use this simple technique, and summer night heat is more bearable. Then came an assessment of the curtains (almost to the floor is not ON the floor, so warm air escapes) – and we had another contribution to a warm healthy home in winter. The full house assessment was free and took only a few minute, but has made a bigger difference that any other assessment we have had. Scientific knowledge and practical application, given on site in an understandable way is an excellent combination. Thanks Nelson Lebo and the Palmerston North City Council.