How To Run Heat Duct In Attic

Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal.

How to run heat duct in attic.

This rule is especially important if you re putting an. The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. Never locate ducts at the end of the trunk line run. 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.

On the face of it the answer is as simple. It only takes a little bit of heat in your attic to cause ice damning which can result in a lot of water damage. Ted also has inherited a powered attic ventilator. Then it moves along floor joists to any upper levels.

An uninsulated duct will lose a lot of its heat on the way to the register. You want to insulate the duct work very very well. The heat ducts usually travel in the walls behind the drywall and exit through openings in the ceiling on first floor levels. 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.

In reality such a task can be complicated calling for an evaluation of the heating system the. Ducts that run through unheated spaces should be insulated. Last take off run to be located 12 18 from end. Always stagger take off ducts by 12 to maintain pressure.

I lived in a house with a substantial quantity of the duct work running through the attic. Building codes are as varied as the state and county agencies who write them so be sure to check with your local building inspector s office before doing duct work yourself only to learn it all has to be torn out and replaced by a licensed installer. Running duct work and all other heating and air conditioning related jobs are regulated by the local building codes and the hvac industry. Flexible duct work must be stretched tightly for maximum air flow.

Granted its a cooling climate i assume although heat run through the ducts at any. Run a heating duct from the attic to the basement.