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Advantages of a Direct Vent Water Heater

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There are many advantages of a direct vent water heater, particularly for newly constructed homes which meet the modern, tight standards of design. By using space to the maximum potential, a direct vent water heater is not only a convenient means of heating water, it is also energy efficient.

Draws Air From Outside

Unlike non-direct vent heaters, this type of water heater is connected directly to the outside by two pipes or a smaller pipe within a larger one. This means that the air used by the heater for combustion comes in directly from outside, rather than using air from inside which may have already been used to heat or cool your house. This is one aspect of a direct vent water heater's efficiency. Another aspect is that the units meet or exceed the Energy Star standards for water heaters and can save you between 10-14 percent on your annual energy bill.

A Direct Vent Water Heater is Sealed

Direct vent water heaters are also safer than non direct heaters. This is because they are composed of a completely sealed unit. Because non direct units draw air from within the space of their location, they are not completely sealed, meaning there is a possibility of a back draft which would release gas fumes directly into your house, and can be dangerous for inhabitants. A direct vent heater has access to an adequate air supply at all times, whereas a non-direct vent unit may be unable to acquire adequate air from the inside, which results in negative air pressure and inefficient functioning.

Easy Installation

Direct vent units come in 40-50 gallon sizes and have an input of around 40,000-60,000 BTU per hour. Air is drawn in and expelled through separate pipes made from CPVC, PVS or ABS. This use of non-metallic piping makes installation convenient and also more cost effective.

Vent Horizontally or Vertically

A further advantage of a direct vent water heater is that it can be vented either horizontally or vertically. This means that you don't have to run the vent through the roof, but can run it through the adjacent wall. Some models are also lined with glass, which ensures that they will withstand corrosion over time.

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