Learn how to properly install Rinnai concentric vent kits to ensure safe and efficient operation of your tankless water heater. Follow our step-by-step guide for a hassle-free installation.
If you own a Rinnai tankless water heater, it's important to ensure that it is installed correctly and safely.
One crucial aspect of installation is the venting system, which removes exhaust gases from the heater and brings in fresh air for combustion.
Rinnai concentric vent kits are an excellent choice for venting your tankless water heater as they are designed to be efficient, easy to install, and safe.
Before we dive into the installation process, it's important to understand what a Rinnai concentric vent kit is.
This venting system consists of a single vent pipe with an inner tube for exhaust gases and an outer tube for fresh air intake.
The concentric design ensures that the exhaust and intake are properly separated, preventing any danger of backdraft or harmful fumes.
Before beginning the installation process, it's important to ensure that you have all the necessary materials on hand. Here's a list of everything you'll need to properly install your Rinnai concentric vent kit:
Now that you have all the necessary materials, it's time to begin the installation process. Follow these step-by-step instructions to ensure a proper installation:
Choose the installation location: The first step is to choose the best location for your vent kit. The Rinnai concentric vent kit can be installed through the roof or wall, depending on your home's design. Be sure to choose a location that is free of obstructions and has proper clearances from any combustible materials. Install vent termination such that exhaust and rising moisture will not collect under eaves. Discoloration to the exterior of the building could occur if installed too close. DO NOT connect the venting system with an existing vent or chimney.
Cut the hole: Once you've chosen the installation location, use a saw to cut a hole in the roof or wall. Be sure to follow the manufacturer's guidelines for the appropriate hole size.
Install the roof jack or wall thimble: Depending on the installation location, you'll need to install a roof jack or wall thimble. This will ensure that the vent kit is properly supported and sealed to prevent leaks.
Install the vent pipe: Once the roof jack or wall thimble is in place, it's time to install the vent pipe. Start by inserting the inner exhaust pipe into the outer air intake pipe. Use a level to ensure that the pipe is installed straight. Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer’s instructions. Support horizontal vent runs every 4 ft (1.2 m) and all vertical vent runs every 6 ft (1.83 m) or as per vent manufacturer’s instructions or local code requirements. Venting should be as direct as possible with a minimum number of pipe fittings. . Slope the venting 1/4 in. per foot toward the appliance according to the vent manufacturer’s installation instructions.
Secure the vent pipe: Once the pipe is properly aligned, use screws to secure it in place. When installing the vent supports and brackets allow for movement from expansion. Be sure to follow the manufacturer's guidelines for the appropriate spacing of screws.
Seal the pipe joints: To prevent any leaks, use sealant to seal the joints between the inner and outer pipes. PVC Pipe Cement and Primer approved: PVC ANSI/ASTM D2564, CPVC Schedule 40 ANSI/ASTM F493
Install flashing: If necessary, install flashing around the roof jack to ensure a watertight seal.
Test the venting system: Once the installation is complete, it's important to test the venting system for proper operation. Turn on your tankless water heater and check for proper airflow and combustion. Ensure that there are no unusual smells or sounds, and that the venting system is properly removing exhaust gases from the heater.
FAQs
Q: Do I need to hire a professional to install my Rinnai concentric vent kit?
A: While it is possible to install the vent kit yourself, it's recommended to hire a professional to ensure that the installation is done safely and correctly. Any issues resulting from improper vent installation will not be covered by warranty
Q: How often should I clean the vent pipe?
A: It's recommended to have your venting system inspected and cleaned by a professional annually to ensure proper operation.
Q. Is condensing and concentric the same?
A. No, condensing and concentric venting are not the same. Condensing and non-condensing refer to the type of technology used in a tankless water heater to achieve higher efficiency. A condensing water heater has a secondary heat exchanger that extracts additional heat from the combustion gases, resulting in higher efficiency and lower emissions.
Concentric venting, on the other hand, is a type of venting system that uses a single pipe to both intake outside air for combustion and exhaust the combustion gases. The concentric vent pipe has an inner pipe that carries the exhaust gases and an outer pipe that brings in outside air for combustion.
Properly installing a Rinnai concentric vent kit is crucial for the safe and efficient operation of your tankless water heater. By following our step-by-step guide and ensuring that you have all the necessary materials on hand, you can install your venting system hassle-free. Remember to test the system for proper operation and have it inspected and cleaned annually to prevent any safety hazards. If you're unsure about the installation process, it's always best to hire a professional to ensure that your system is installed correctly.
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