A Fredericksburg homeowner contacted us after one of their 17-year-old attic water heaters failed and began leaking into the home. The aging LP tank systems were at the end of their lifespan, and the leak created an urgent situation. Our plumbing team removed both 50-gallon tank water heaters and upgraded the home with a new Navien NPE-240-A2 LP tankless water heater. The result was a safer setup, improved efficiency, and dependable hot water on demand.
Job Overview
- Location: Fredericksburg, TX
- Client Type: Residential
- Scope: Remove two existing 50-gallon LP tank water heaters from attic and install new LP tankless water heater system
- Equipment Installed: Navien NPE-240-A2 LP tankless water heater
- Additional Work (if any): drain pan installation, new flex water connections, new service valves, new gas valve with flex line and drip leg, vent piping reconfiguration, water piping reconfiguration, gas piping modifications, custom mounting rack, closet auger service for toilet blockage
Why It Mattered
A leaking water heater in the attic can quickly lead to water damage, drywall issues, and costly repairs. Replacing the failed system with a modern tankless unit helped protect the home while delivering more reliable hot water for daily use.
What We Found
The home had two 50-gallon LP tank water heaters that were installed about 17 years ago. One of the tanks had failed and was actively leaking into the home. At that age, both systems were well beyond the typical lifespan of a traditional tank water heater. The attic installation also made the leak more concerning because water can travel quickly through ceilings and insulation.
Beyond the water heater issue, there was also a blockage in a toilet P-trap that needed attention during the visit.
The Solution
Our team safely removed both attic-mounted tank water heaters and prepared the space for a tankless upgrade. We installed a tankless water heater — a Navien NPE-240-A2 LP — building a secure rack to properly mount the new unit.
To ensure proper performance and code compliance, we reconfigured the water piping, gas piping, and vent piping. We installed a new gas valve with flex line and drip leg, new service valves for future maintenance, new flex water connections, and a drain pan for added protection. After completing all reconnections, we tested the system thoroughly to confirm proper operation and ensure there were no leaks.
We also ran a closet auger through the toilet to clear the blockage in the P-trap, restoring proper drainage.
Photo Highlights
Completed tankless water heater installation featuring new gas line, service valves, and drain pan for added protection.
New Navien LP tankless water heater installed in the attic with updated vent piping and secure mounting rack in Fredericksburg home.
The Results
The homeowner now has reliable, on-demand hot water without the risk of another aging tank leaking from the attic. The new Navien tankless system provides improved efficiency and frees up space, while updated piping and gas connections ensure safe operation. The home is protected, and the plumbing system is built to perform for years to come.
Dependable Tankless Water Heater Installation in Fredericksburg
When you need professional tankless water heater installation in Fredericksburg, the team at 72 Degrees Air Conditioning, Heating, and Plumbing brings decades of experience and careful workmanship to every job. Whether you are dealing with a leaking tank or planning an upgrade, we provide clear communication and reliable solutions. Schedule a quote with 72 Degrees and get expert guidance for your next plumbing project.

