Vermont just passed new legislation that provides rebates for the installation of high efficiency cold weather heat pumps. This type of heating and cooling system sometimes called a ductless mini-split can offer substantial cost savings over traditional forms of heating and cooling. In a Passive House you combine the inherent efficiency of the equipment with the efficiency of the building envelope and your energy costs are even more controlled. Read more about this breaking news in a blog post from GreenBuildingAdvisor.com