Install electric ventilators and attic fans which remove hot air from an attic.
Removing ducts from attic.
Loosen and remove the screws that secure any duct straps to the attic framing.
However removing the ducts eliminates a major source of inefficiency as leaks and cracks in the ductwork commonly develop over time another option is a mini duct system that relies on ductwork that is less than half the size of a traditional duct system.
In more cases than not a 3 ton ac with the ducts in the attic has a ton or so of load that s just from the location of the ducts in the attic and the associated duct gains leakage etc.
Detach the connection where the flexible duct meets the circular end of the rigid duct.
The price of a duct and vent professional can vary depending on your area.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Removing insulation gaskets and vibration dampeners from hvac units varies widely from 800 to 2 500.
In last week s blog i discussed the practice of burying attic ducts in deep insulation since burying ducts is simply one of several ways to address the energy waste associated with the decision to locate ducts in a vented unconditioned attic it s worth taking a fresh look at all of the possible solutions to the attic duct problem.
The difference between the cold air in the ducts and warm air in the walls can cause moisture to condense on the ducts giving mold a perfect environment to grow.
Removing duct work is a challenging job for the simple fact that most duct work systems are located in hard to reach places.
To do this.
No ducts in the attic.
In addition to comparing ducts in the attic to ducts inside the building envelope roberts and winkler also looked at electricity savings of other measures such as adding insulation installing better windows and using higher efficiency air conditioners.
Or brush on mastic along the seams from the outside requires removal of insulation.
Ducts for heating and air conditioning systems are often placed in attics and small crawl spaces underneath the house.
The mini ducts work under higher pressure which allows the.
The average cost for a duct and vent professional is 100.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
In this case you ll need extensive duct cleaning with mold remediation and you ll want to make sure to seal up the leaks in the ducts to prevent the problem from returning.
If the duct work is located in a full basement or attic the work is a lot simpler than if in a.
The remaining 2 tons of capacity is at least 1 5x oversized for the actual 1 load.
