Water Heater Vent Types

Power vent water heaters have become popular in recent years because they dont require a chimney or upright vent for getting rid of exhaust gasses. The three main water heater vent types that are used to handle flue gasses in residential water heater installations are power-vent direct-vent and atmospheric.

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There are two types of PVC pipe water heater power vent systems single single wall and concentric and double pipe.

Water heater vent types. Power Vent Water Heaters. Direct vent water heaters are very popular in the Northern Colorado area. Standard water heaters the most common type often use a method known as atmospheric venting.

The system works solely through natural convection. The vent consists of a vertical or upward-sloping vent duct that typically ties into a common vent. Over 85 Million Visitors.

The three variations are known as direct atmospheric and powered. The exhaust gases are then transferred to the outside of the home via the exhaust pipe or chimney. In a direct vent water heater fuel is burned and the heat from the combustion process is used to heat the water.

If you have a power-vent configuration it means that your water heater uses a mechanical fan to move air. Do All Water Heaters Need A Vent. Over 85 Million Visitors.

As you can see the photo this gas-fueled water heater vent was installed without the manufacturer-recommended 12 vertical rise in the flue vent connector before the first elbow. Some are suitable for gas water heaters and others are best paired with electric-powered models. Single wall natural draft gas water heater vent pipe cannot be used in unheated areas like attic or garage even if only partially penetrating that space because such vent pipe installation will cause excessive condensation on vent pipe walls and compromise proper drafting double wall pipe B-vent type.

Instead an electric fan or blower pushes the gasses through horizontal pipes allowing for the water heater to be placed anywhere in the house or in homes without chimneys. However in a state where natural gas is a common utility in many homes vented water heaters are plentiful in Colorado and chances are good that your home does use a direct vent water heater or a power vent water heater. Choose One of three Vent Types As it stands there are three types of vents commonly associated with water heaters.

Common combined venting is allowable with vertical Type B vent systems and lined masonry chimneys as long as proper draft for the water heater is established under all conditions of operation. Atmospheric is the most common gas water heater venting option. The short answer is no not all types of water heater need a vent.

The water heater vent type needed for your water heater will depend on both the location of the unit and the model of the water heater. PVC vent pipe water heater power vent system single wall PVC Power vent equipped water heater discharges exhaust gases through that single pipe. Atmospheric venting refers to a system in which exhaust from the water heater naturally rises out of the appliances combustion chamber then travels up through a standard chimney-style flue that.

The main problem with atmospheric vent systems is that they are susceptible to back drafts more on that later.

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