Installing an outdoor Rinnai tankless water heater that runs on propane can be a complex process, but with the right tools, materials, and attention to detail, it can be a rewarding DIY project. This comprehensive guide will provide you with advanced, hands-on details and technical specifications to help you complete the installation process successfully.
Preparation: Gathering the Necessary Tools and Materials
Before you begin the installation process, it’s crucial to ensure that you have all the necessary tools and materials on hand. You’ll need the following items:
- Pipe wrench
- Black steel pipe or fittings
- Pipe thread sealant
- Shut-off valve
- T-fitting
- Rinnai V Series Tankless Water Heater
- Rinnai Valve Kit
The Rinnai V Series Tankless Water Heater and the Rinnai Valve Kit can be purchased from eComfort.com, SupplyHouse.com, or Amazon.
Step 1: Gas Line Installation
The first step in the installation process is to modify the existing gas line to extend a 3/4″ pipe to the unit. This is the most challenging part of the installation, as it requires a good understanding of gas line installation and local building codes.
If you’re not comfortable with this step, it’s recommended that you hire a professional plumber or HVAC technician to handle the gas line installation. The video references in the previous answer provide a detailed walkthrough of this process.
Step 2: Install the Gas Line with Valve and Union
Once the gas line has been extended, you can proceed to install the 3/4″ gas line with a valve and union. Follow the instructions provided with the Rinnai V Series Tankless Water Heater to ensure proper installation.
When installing the gas line, make sure to use the appropriate fittings and sealants to prevent gas leaks. The gas line should be securely mounted to the siding of your house, and the valve should be easily accessible for future maintenance or emergency shut-off.
Step 3: Install the Water Supply and Water Valve Kit
The next step is to install the water supply and water valve kit. This involves connecting the water supply line to the unit and installing the water valve kit, which includes a shut-off valve, a pressure relief valve, and a union.
Ensure that the water supply line is properly sized and that the minimum water pressure of 20 PSI is maintained. The video references in the previous answer provide a detailed walkthrough of this process.
Step 4: Electrical Installation
The final step in the installation process is to connect the Rinnai V Series Tankless Water Heater to a power source. This involves running an electrical cable from the unit to a dedicated 120V, 60Hz, 15A circuit breaker.
Make sure that the electrical connections are secure and that the unit is properly grounded. Refer to the manufacturer’s instructions for specific electrical requirements and guidelines.
Technical Specifications
The Rinnai V Series Tankless Water Heater has the following technical specifications:
- Maximum input: 150,000 BTUs per hour
- Maximum flow rate: 9.8 gallons per minute
- Minimum gas pressure: 0.4 PSI
- Minimum water pressure: 20 PSI
- Dimensions: 26.4″ x 13.9″ x 9.3″
- Weight: 49.6 pounds
DIY Installation Considerations
While it’s possible to install an outdoor Rinnai tankless water heater that runs on propane yourself, it’s important to note that this is a complex process that requires a good understanding of plumbing, gas line installation, and electrical systems.
If you’re not comfortable with any of these tasks, it’s highly recommended that you hire a professional plumber, HVAC technician, or electrician to ensure a safe and proper installation. Attempting to install the unit without the necessary skills and knowledge can result in serious safety hazards, such as gas leaks or electrical issues.
By following the steps outlined in this guide and the manufacturer’s instructions, you can increase your chances of a successful DIY installation. However, if you have any doubts or concerns, it’s always better to err on the side of caution and seek the assistance of a qualified professional.
References:
- Tankless (On-Demand) Exterior Water Heater Install – YouTube
- Installing my Rinnai water heater, plus a surprise!!! #519 – YouTube
- Install of a Rinnai tankless water heater. – YouTube
- Outdoor Tankless Water Heater Installation and Operation Manual
- Tankless Water Heater – Rinnai