Since your ductwork is mostly out of sight, you probably don’t give it much thought when you’re looking for ways to improve your home’s comfort and energy efficiency. But ductwork design has a big impact on how well your heating and cooling systems work.
If you are building a new house or starting a major renovation project, be sure to discuss ductwork design with your HVAC contractor. If you’re having problems with keeping your home comfortable in hot or cold weather, but don’t have big remodeling plans, you should still consider whether your ductwork needs repairs or modifications.
Here are a few key points to keep in mind when you are evaluating your ductwork design:
- Does your system provide balanced airflow throughout your house?
- Are bends in ductwork designed and installed as well as possible to avoid restricting airflow?
- Is most of your ductwork installed inside your home’s conditioned spaces?
- Is ductwork that runs through un-conditioned spaces properly insulated?
- Are all of the joints and connections in your ductwork properly sealed?
Your system should provide sufficient airflow to every room in your house. The supply of air to each room is important, but it’s equally important to have return air ducts in or near each room. Be sure return air flow is not blocked by furniture, carpets or closed doors.
When bends in ducts are necessary, it’s better to have gentle angles or curved bends rather than tight 90-degree angles. Bends in flexible ducts should not have kinks that restrict airflow.
Ducts running through un-insulated areas like attics or crawlspaces should be adequately insulated to minimize energy losses. Wherever possible, ducts should run inside conditioned areas such as dropped ceilings or raised floor cavities.
All of your duct connections should be well sealed. Leaking ducts waste energy and can pose a health hazard if they let combustion gases or other polluted air into your house.
Contact us at Elite Air Inc.for our advice on improving your ductwork design. We help homeowners throughout central New Jersey keep their homes comfortable and energy efficient all year long.
Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems). For more information about ductwork design and other HVAC topics, download our free Home Comfort Resource guide.