Yes, it is possible to connect a gas line to a propane water heater. The process involves several steps, including the installation of a liquid propane gas line to the new tankless water heater. The main line should be a 3/4″ hard pipe, with a 3/4″ ball valve, 3/4″ flex line, and a tee with a line going into the side. A sediment trap should be installed at the bottom, followed by another ball valve connected to the tankless.
Importance of Proper Gas Line Installation
It is crucial to ensure that the gas line is the correct size and length to guarantee proper operation of the water heater. A 1/2″ line may be too small, even for propane, and a 3/4″ line may be necessary for a tankless heater with a high demand for hot water. Consulting the manufacturer’s instructions and local building codes is essential to ensure a safe and compliant installation.
Technical Specifications for Connecting a Gas Line to a Propane Water Heater
- Main Gas Line: The main gas line should be a 3/4″ hard pipe, with a 3/4″ ball valve and a 3/4″ flex line.
- Sediment Trap: A sediment trap should be installed at the bottom of the gas line to prevent sediment from entering the water heater.
- Additional Ball Valve: Another ball valve should be installed at the top of the gas line, close to the water heater, for easy maintenance and repair.
- Gas Line Length: The length of the gas line should be determined by the distance between the gas source and the water heater, with consideration for any bends or turns in the line.
- Gas Line Support: The gas line should be properly secured and supported to prevent damage or leakage.
- Pressure Regulator: A pressure regulator may be necessary to ensure proper gas pressure for the water heater.
- Compliance with Codes: Local building codes and manufacturer’s instructions should be followed for proper installation and operation.
Step-by-Step DIY Guide for Connecting a Gas Line to a Propane Water Heater
- Turn off the gas supply: Before starting any work on the gas line, turn off the gas supply at the main valve.
- Install the main line: Install a 3/4″ hard pipe from the gas source to the location of the water heater.
- Install the ball valve: Install a 3/4″ ball valve on the main line, close to the water heater.
- Install the flex line: Install a 3/4″ flex line from the ball valve to the water heater.
- Install the sediment trap: Install a sediment trap at the bottom of the gas line, close to the water heater.
- Install the second ball valve: Install a second ball valve at the top of the gas line, close to the water heater.
- Check for leaks: After installing the gas line, check for leaks using a soapy water solution.
- Turn on the gas supply: Once all connections have been checked for leaks, turn on the gas supply at the main valve.
- Test the water heater: Test the water heater to ensure proper operation.
References
- Installation of Liquid Propane Gas line to new Takagi Tankless Water Heater – DIY Stack Exchange
- Can you use natural gas with propane water heater? – Plbg.com
- 1/2″ gas line to tankless water heater? – Reddit
- 5 gas line tips for tankless water heaters – PERC
- Can you use a gas flex connector on a hot water heater? – DoItYourself.com