Duct Design

Hello – I am using Dandelion geothermal heat for new construction. They provided with manual J/D specs for how much air needs to be in each room CFM. How do… Hello – I am using Dandelion geothermal heat for new construction. They provided with manual J/D specs for how much air needs to be in each room CFM. How do…Read MoreGreenBuildingAdvisor