Identify the Reliance tankless fuel and model
Reliance publishes gas and electric tankless products, including equipment for different applications. Some gas products have X3 scale-prevention technology. Identify the exact model rather than assuming every Reliance heater has the same features or maintenance requirements.
Describe whether the problem occurs at low flow, during simultaneous use or at every fixture. Keep any fault code available. A heater that was undersized from the beginning needs a different conversation from equipment whose performance changed recently.
Before choosing a replacement
Check utility capacity and output at the required temperature rise before selecting a replacement. Electric on-demand and gas models have different installation needs. Ask for the selected model’s maintenance requirements and the full scope of any conversion.
Plan service around your home.
For a Marietta home with the heater in a basement, garage or utility closet, tell the team about the location and any restricted access. Mention stairs or a narrow removal route when discussing replacement. The installation area can affect the work as well as the choice of equipment.
Compare output at the required temperature rise, simultaneous fixture use and available utility capacity. On-demand heating does not guarantee unlimited flow or immediate hot water at a distant faucet. Learn about repair, replacement and maintenance before you call.
Describe what you can see safely. Leave gas, electrical, venting and pressure-relief work to qualified professionals.