The efficiency of your HVAC system is largely dependent on the efficiency of your ducts. That is, if your ducts aren't airtight and insulated, your system is not going to be as efficient as it could be. Of course, the majority of your ducts are within the walls of your home, so there is very little that you can do without undertaking a major construction project. However, this article shows how you can improve the efficiency of your ducts by insulating the small sections that are exposed and easy to access.
Do You Have Exposed Ducts?
In some homes, the only exposed ducts are those directly attached to the furnace or boiler. But, even if there are just a few feet of exposed ducting, it can't be very worthwhile to insulate these sections because they might be the most vulnerable to heat loss. This is particularly true if you have a boiler in the basement or garage where the temperature is colder. If you have a basement with exposed ducts in the ceiling rafters, you will have quite a lot of possibility when it comes to adding insulation.
Tape the Seams
Before you insulate any of your ducts, you want to run your system and do a quick check to make sure there are no serious leaks. It is very common for the seams between two ducts to become loose, especially if they are exposed. A duct can easily get knocked loose, especially since people tend to store things near the furnace. If you feel a lot of hot air escaping through any seam, it is a good idea to invest in some aluminum duct tape. In fact, it might be worthwhile to add tape to all of your duct seams to prevent them from getting hit and knocked loose later on. This is particularly smart if you are about to add insulation to your duct. Otherwise, ducts could get knocked loose from each other, and you wouldn't really be able to tell because the seam will be covered by the new insulation.
Wrapping Your Ducts in Fiberglass Insulation
The most convenient and effective way to add insulation to round duct tubes is to wrap them in fiberglass batting. Fiberglass comes in continuous rolls that can be easily wrapped around ducts of any width. The more times you wrap your ducts, the more insulation you add to it. Of course, there is often limited space, especially when it comes to the ducts in the rafters of your basement.
To learn more, contact a company like High Tech Heating & Air Conditioning Inc.