The average cost of duct insulation is between $1.00 and $6.00 per square foot ... If your home has a forced-air heating and cooling system, a network of ducts distributes conditioned air ...

Mold remediation costs around $2 to $3 per square foot ... including the return ducts and supply ducts. These ducts typically work with the HVAC system to deliver cooled or heated air throughout ...

which uses ductwork to connect a room without a return to the common area where the central return is located. Having an HVAC professional install additional returns can also improve circulation ...

Everyone is familiar with pinwheels, and few of us haven’t crafted one from a square of paper ... that putting a pinwheel to work as an HVAC duct flow meter seems like a great idea.