Running out of hot water or dealing with bulky tank heaters in the attic can be a real headache, especially in a larger home. This Austin homeowner was ready for a better solution. Radiant replaced three existing tank water heaters with a new dual tankless water heater system designed to deliver consistent hot water without the same space and performance limitations. Along with the upgrade, we improved the home’s plumbing setup, added water treatment, and made key system improvements to support long-term reliability. The result is a more efficient setup that keeps hot water flowing when it is needed most.
Job Overview
- Location: Austin, TX
- Client Type: Residential
- Scope: Replacement of multiple tank water heaters with dual tankless system and plumbing upgrades
- Equipment Installed: Two tankless water heaters, water softener and filtration system
- Additional Work: New gas lines and shutoff valves, venting, drain pans, expansion tanks, flush kits, recirculation line connection, new water lines, trenching, homeowner shutoff valve, pressure regulating valve installation
- Why It Mattered: The homeowner now has reliable, on-demand hot water with improved efficiency and updated plumbing support.
What We Found
The home previously relied on multiple tank-style water heaters located in the attic. While this setup can work, it often leads to limited hot water capacity, higher energy use, and added strain on older equipment.
Over time, these systems can also become harder to maintain and take up valuable space. The homeowner needed a more efficient way to meet their hot water demands without relying on multiple aging tanks.
The Solution
Radiant removed the existing tank water heaters and installed two tankless water heaters in their place. The team built a new platform, updated gas lines to the proper size, and installed new shutoff valves, venting, and system components to support the tankless setup.
We also reconnected the home’s recirculation line, ran new water lines where needed, and installed a water softener and water filtration system to improve water quality. Additional work included trenching for updated water lines, installing a new pressure regulating valve, and adding a homeowner shutoff valve near the main line.
Once everything was installed, the system was programmed, tested, and checked for leaks to ensure reliable operation.
The Photos
Dual tankless water heaters installed to replace multiple older tanks and provide consistent hot water.
New water lines routed through the attic to connect the upgraded system throughout the home.
New water softener and filtration system installed to improve water quality throughout the home.
Exterior piping and venting added to safely support the new tankless system.
Excavation work to install a new main shutoff and pressure control valve for the home.
The Results
The home now has a modern tankless water heater system that delivers hot water on demand without the limitations of traditional tanks. With updated piping, gas supply, and water treatment, the system is built to run more efficiently and reliably.
The homeowner also benefits from improved water quality and a cleaner, more streamlined setup compared to the previous attic installation.
Tankless Water Heater Services in Austin
For homeowners in Austin, Radiant provides plumbing solutions designed for performance, efficiency, and long-term reliability. Whether you are upgrading from older tanks or need help with your current system, our team is here to help. Schedule online or get a quote to improve your home’s hot water system.
