Posts Tagged ‘Duct work’

Duct Leaks and Insulation

November 17th, 2010

Many homeowners are on the right track with making their homes more energy efficient. They replace the old heating and cooling systems with high efficiency units, install a programmable thermostat, have their yearly maintenance performed, and replace the furnace filter regularly. However, thousands of homes that have these improvements are still wasting loads of energy. How is this possible? Leaky or poorly insulated duct work is the problem.

Problems Caused by Leaky and Un-insulated Duct-work

When the builder installed the duct work system in your home, they had to place sections of the duct-work system in areas that are no conditioned by the air conditioner or furnace. As a result, the air that passes through the ducts will either loose heat or cooling to the duct work material. For example, attics are common place for duct work to be hidden. During the winter, the temperature in the attic is similar to the temperature outside. When the duct work is not insulated, it becomes very cold. As hot air passes through the ducts, some heat is lost to the cold duct-work material whether it is metal, fiberglass, or another duct-work type. » Read more: Duct Leaks and Insulation

UV Lights in Your Duct Work

September 13th, 2010

When you think of ultra violet light chances are the first thing that comes to mind are the harmful rays of the sun and not your HVAC systems. However, UV light can be harnessed and put to good use in the duct system of your home. If installed properly by a reliable HVAC contractor, UV lights can improve indoor air quality by destroying odors and harmful particles, and it may even boost the efficiency of your heating and air conditioning systems.

What is a UV light and how does it work?

A UV light is a machine that is mounted into your duct works supply and return vents or over the air conditioning coil. It uses a light bulb that emits powerful UV-C rays into the duct system. UV-C is an invisible part of the sun’s light spectrum. It has the ability to alter the DNA and RNA of microorganism which will sterilize them. Once sterilized, the microorganisms can no longer grow or reproduce and are killed off in a short amount of time. » Read more: UV Lights in Your Duct Work

Flex Duct Disaster

September 1st, 2010

Many homeowners pay little to no attention to their duct work, but if you have flex duct in your home, it probably deserves a good inspection, because it could be costing you hundreds of dollars annually not to! Flex duct is a type of duct work that consists of wire, plastic, and insulation. It is very flexible, ergo the name “flex duct”, and has been used by thousands of contractors as a cheap and easy way to install duct work in a home.  The problem lies in the installation of flex duct. Unless your contractor really knew what he was doing, odds are it was installed improperly.  Improper installation of flex duct can lead to poor airflow, and it may be chocking your HVAC systems.

Big Problem #1

The first major problem with flex duct is  air friction. Flex duct creates more air friction than any other type of duct work even if it is installed properly. Unfortunately, this problem only gets worse when it is installed improperly. Many contractors assume that, because flex duct work is so bendable, it is ok to bend it around tight corners.  Just because it is capable of doing something, it doesn’t mean that it should.  Bends and kinks in the duct work increases the air friction which decreases air flow into the various rooms of the house. » Read more: Flex Duct Disaster

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