Air sealing your ducts is cheap and easy and it save s a lot of money.
Duct disconnected in attic.
If a supply duct is broken or disconnected warm moist air from the furnace can escape directly into the attic.
Not checking all of the vent ducts in the attic.
In existing homes with vented attics and hvac ducts that are installed on the attic floor bury ducts in blown attic insulation when adding or increasing attic insulation.
We found that the ducts had become disconnected in the attic crawl space where the air handler was placed.
Drill knife flashlight and any other useful items.
The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.
All vent ducts terminated to the exterior of the property and were properly installed and supported.
Doing so would fill your attic with.
Vent ducts that are damaged or disconnected.
Before adding blown insulation inspect and test the ducts for missing or torn duct insulation.
Faulty cold air return.
When working in a small space be sure to bring all the necessary tools including.
Disconnected cool air supply duct hidden in crawl area.
A client who lived in an apartment in new york city engaged our company to find why her city apartment could not get cool even though she had a new air conditioning system installed.
Disconnected or leaking ducts.
Ted has more than a few cobwebs in his attic.
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.
This is a much more common scenario as most homes with forced air systems locate the supply ducts in the crawl space and return ducts in the attic.
Access the duct work.
Recently i made a trip up to my attic to measure for buying flooring for storage when to my dismay i saw that both bathroom ducts were laying on top of the loose insulation and i noticed what appeared to be black spots on the interior roof inside the attic.
Can a dryer vent go up through an attic.
The unconditioned space also houses his hvac system.
Or excess flex duct.
If you forget something you ll have to crawl back out to get it.
If the duct work is located in a full basement or attic the work is a lot simpler than if in a small crawl space.
Learn how to seal yo.
Bathroom exhaust ducts disconnected in attic.
Vent ducts that terminate into the attic and not to the exterior of the property.
Well in the comments dave roberts a senior engineer at the national renewable energy lab nrel wrote about a paper he co authored last year and included a link to it.