KD Navien gas water tankless heater installation service at Walnut Creek
Problem A homeowner in Walnut Creek, California requested an upgrade from an old tank-style water heater. The existing system was inefficient, slow to deliver hot water, and occupied significant space. The customer wanted a modern, energy-efficient solution that provides instant hot water on demand. Diagnostics Our technician performed a site inspection to assess:
- Gas line capacity and condition
- Water line layout and pipe diameter
- Electrical connections for ignition and controls
- Venting requirements for safe gas exhaust
- Findings:
- Existing gas line sufficient but required minor adjustments
- Venting system needed rerouting to comply with Navien specifications
- Water lines were compatible but needed installation of pressure relief and shutoff valves
- Solution
- The installation included:
- Removal of the old water heater
- Mounting and securing the
- KD Navien gas tankless water heater
- Connecting gas, water, and electrical lines according to manufacturer standards
- Installing proper venting and safety valves
- Initial system flush and startup test
- Programming the temperature settings for optimal performance
- Result
- After installation:
- Instant hot water is available throughout the home
- System operates efficiently, reducing gas consumption
- Compact design saved valuable space
- Safe and reliable operation, fully compliant with building codes
- Homeowner now enjoys modern, on-demand hot water without wait times


