There is a positive correlation between air leakage and energy consumption and running costs. With more air leakage in your ductwork, the greater the energy costs. Kingspan KoolDuct system reduces energy consumption and running costs by minimizing air leakage. An independent study of the Kingspan KoolDuct system found that the pre-insulated duct work reduces 30% of energy required to run a fan in an HVAC system and can reduce the size of a fan needed in the system, which can offer up to a 10% savings in capital cost.