A power vent water heater is also known as a natural gas or propane water heater. It has a different type of venting systems than those seen on standard gas water heaters. The power vent water heater uses a fan to blow the gases from the exhaust out. This method is different from the natural buoyancy of hot air method and hence the vent pipes go out horizontally. This is what makes it easier to install.

The main reason for the growing popularity of a power vent water heater is its high level of energy efficiency in tightly built homes. If you are planning to install a power vented water heater all by yourself then you need to read the installation manual first and understand how each step needs to be done so that there are no accidents or heater operation problem.

How to Install a Power Vent Water Heater

Before starting the installation of the venting system, you need to remember that this should not be common vented with any other heating system.

Step#1: Vent Pipe connection
You need to connect the 76mm (3 in.) power vent to the water heater blower using gear clamps, which are supplied with the power vent water heater. You need to ensure that these connections are sealed properly so that there is no leakage of combustible products into your living area.

Step#2: Vent Pipe Installation
You need to follow certain guidelines while installing the power vent system and they are:
•    There should be a minimum amount of pipe fittings and ensure that venting is as direct as possible.
•    You should not reduce the vent diameter unless it is mentioned specifically in the installation manual.
•    You need to provide necessary support to the horizontal pipe after a gap of every 1.2m (4 ft.). If you are installing a vertical pipe then there should be support after every 1.5m (5 ft.).
•    Don’t install the vent pipe through places where the temperature might be below freezing in the winters or otherwise
•    You will need to cement all joints in the air intake as well as exhaust vent systems.

Step#3: Vent Pipe Runs
•    You need to ensure that the exhaust vent system is not running downhill and then uphill just like a sine curve or a valley formation. This type of formation will create space for accumulation of condensation and this will block your vent pipe.
•    You will need to also ensure that the height is perfect between the heater and termination.

Step#4: Vent Pipe Termination
Before you start the installation of the power vent water heater, you should determine the location of the pipe terminations i.e.,: air intake vent as well as exhaust vent. You will also need to plan your vent system layout so that there is enough clearance available where wiring and plumbing is concerned.

Step#5: Side Wall Vent Terminal Installation
When you are terminating the power vent on your sidewall, you need to consider the following specifications pertaining to the terminal location:
•    The exhaust vent terminal and the air intake terminal should terminate on the same wall.
•    You need to ensure that the vertical centerline of the air intake terminal is located at a minimum distance of 8 inches or 203mm and a maximum of 24 inches or 610mm from the vertical centerline of the exhaust vent terminal.
•    You need to ensure that the horizontal centerline of the air intake terminal is to be located at a maximum of 4 inches or 100mm below the horizontal centerline of the exhaust vent terminal.

Step#6: Vertical Vent Terminal Installation
When you are terminating the power vent through your roof then you will need to consider the following specifications pertaining to terminal location:
•    You need to ensure that the exhaust vent termination as well as air intake termination should extend a minimum of 18 inches or 457mm above the roof
•    You need to provide strong support for any or all pipes that are protruding through your roof.
•    You need to seal the vertical roof termination using a plumbing roof boot or any equivalent flashing.
•    You need to ensure that the exhaust vent termination and air intake termination penetrates the same side of the roof.
•    Ensure that the air intake termination as well as exhaust vent termination centerline is not closer than 8 inches or 203mm and not farther than 24 inches or 610mm

Back from Power Vent to Water Heater Installation

Back from Power Vent Water Heater to Hot-Water.com

Related Posts

Energy Efficient Water Heaters When buying a new water heater, ALWAYS compare the various types of water heaters around to ensure you find the most energy-efficient models. There are a few different types of heaters to choose fr...
Replacing A Water Heater What do you do when you water heater decides to go “kaput?” What makes it worse is that it can happen in the middle of the night or when in the midst of the coldest winter ever! The best thing you can...
Water Heater Blanket Even if you have a water heater, it can sometimes be quite difficult to keep the water hot and that is where a water heater blanket comes in handy. In fact, research states that one of the biggest ene...

Leave a Reply