Ductwork Design and Common Issues - Avoid Obstructions and Inefficiency

Keeping cool in the summer and warm in the winter can be tricky business if you aren’t properly prepared. One important factor to take into account is your home’s duct work. As you know, just keeping  the temperature regulated in your home is only one aspect of having a comfortable living environment. Your home also needs clean fresh air, correct humidity and a cost efficient system of maintaining this environment.

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One trick to creating a harmonious blend of comfort and cost effectiveness is to have your duct work set up to maintain fast, efficient, unobstructed airflow. Ducts are like freeways for air and as such they need to be designed for maximum efficiency. This is done in much the same way as you would design a freeway, by creating gentle curves to reduce congestion, making sure the path is as smooth as possible and that the path of travel is wide enough for the amount of air needed.

A common ductwork issue is when the duct narrows or curves too tightly. This restricts air flow and can cause increased energy usage as well as undue wear and tear on your air conditioning unit. Narrowing causes the air conditioner to have to work harder to move the air, much like trying to suck an overly thick milkshake through a tiny straw.

Another energy sucker is having a duct at too sharp an angle. A pinched corner will cause dust to accumulate and will also cause the air conditioner to have to work harder to push the air through the corners. This can cause bottlenecks, especially near the collector, which can result in a buildup of dust and residue which then blocks airflow, possibly causing serious problems down the road. Any obstruction of proper air flow can cause undue strain on air conditioners and heaters. If this is found to be the case then cleaning and re-routing the pipes can make a world of difference.

If you are looking for more details, kindly visit Duct Corners in HVAC: Best Practices for Efficient Airflow and Reduced Energy Loss(da,de,ru).

Another common ductwork issue is joints that are not sealed properly or old worn seals that have begun to leak. This allows heated or cooled air to leak out into the walls of the house and then outside where it does you no good whatsoever. Air leaks can also cause uneven temperatures inside the walls which in turn can encourage condensation and mold growth or other moisture issues. Because of all the possible costly side effects of poorly functioning ducts, it really pays to have a qualified inspector come look at your duct work to see if there are any issues.

There are, however, some ductwork issues that you can fix yourself. Areas with worn, leaking seals are easily fixed  with a strong, flexible silicone caulking. Eliminating leaks can easily save you money as well as improve your indoor air quality.

When you do minor repairs on your ducts you will want to avoid the overuse of both flexible hosing and any type of corrugated hosing as they can cause buildup of dust and residues inside the pipes which can reduce air flow over time as well as reduce the overall quality of your indoor air. The uneven texture of corrugated ducts also makes them harder to clean during regular maintenance. The best type of duct is made from galvanized steel. The zinc coating on galvanized steel resists mold and mildew while the metal pipe is easy to insulate, protect and clean.

If the overall design of your duct work is found to be causing an issue you have a few choices when reconfiguring your ducts. There are several efficient configurations for proper duct work including what’s known as a “radial” design because it is designed like the spokes of a wheel radiating from the central hub of the heating and air conditioning unit. This design is favored for most house designs although if you have a very long home then a “trunk and branch” design will be more cost efficient for you. A professional HVAC repair person can find the most economical method of reconfiguring your ducts.

For more information, please visit What Is a Duct Corner and Why Does It Matter in HVAC Systems?.