Hello, my name is Graham and this is my HVAC blog. I live in Richmond, Australia with my wife and our three lovely children. Last year, we moved into a large house on the shores of a lake. It was great to be able to enjoy the views, but the lake could cause strange things to happen to the inside of the house. Sometimes, the house would get extremely cold and at other times extremely humid and hot. In the end, I decided I needed to install an HVAC system. My friend who is an HVAC contractor helped me and offered me some great advice.