Project Overview
✔ Location: Altadena, California
✔ Contractor: LT Ross Plumbing
✔ License: CA Plumbing Contractor #1107926
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This Altadena project involved diagnosing inconsistent hot water and replacing an 18-year-old outdoor tankless water heater.
The installation included removing the aging unit, updating the exterior connections, insulating the water lines, and testing the new system.
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Work Performed
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Diagnosed the intermittent hot-water problem
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Removed the 18-year-old outdoor tankless unit
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Prepared the exterior installation area for replacement
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Installed a new outdoor tankless water heater
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Updated the connections, insulated the water lines, and tested the system
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Project Photos
What We Found
✓ Hot water became cold during single-shower use
✓ Hot water remained available when several fixtures were running
✓ The tankless unit stopped heating under lower-flow demand
✓ The 18-year-old system and exterior connections were aging
Testing confirmed that the aging tankless water heater was no longer providing consistent hot water during normal use.
Tankless Water Heater Removal
✓ Existing 18-year-old tankless water heater removed
✓ Water, gas, and electrical connections disconnected
✓ Exterior mounting area prepared for the new unit
✓ Existing connections reviewed before replacement
With the aging unit removed, the exterior mounting area and existing connections were prepared for the new tankless water heater.
New Tankless Water Heater Installation
The new outdoor tankless water heater was mounted in the existing location and connected to the water, gas, and electrical systems.
Tankless Water Heater Connections
✓ New outdoor tankless water heater secured in place
✓ Copper water connections routed to the new unit
✓ Gas and electrical connections completed
✓ System prepared for insulation and final testing
With the new unit mounted, the exterior connections were updated and organized before insulation and final system testing.
Completed Tankless Water Heater Installation
The new outdoor tankless water heater was completed with updated copper connections and insulated hot and cold water lines.
Final testing confirmed that the unit continued heating during single-shower use and normal household demand.
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Results
✓ Intermittent hot-water problem diagnosed
✓ 18-year-old tankless water heater removed
✓ New outdoor tankless water heater installed
✓ Connections updated, insulated, and fully tested
The completed system maintained consistent heating during single-shower use and normal household demand, resolving the original hot-water problem.
LT Ross Plumbing provides tankless water heater replacement and other residential plumbing services throughout Altadena and the San Gabriel Valley.
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Explore More Plumbing Projects
See how other plumbing projects have been completed for homeowners throughout the San Gabriel Valley.
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• Water Heater Replacement Project – Altadena
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• Tankless Water Heater Replacement Project – San Gabriel
• Water Heater Replacement Project – Pasadena
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LT Ross Plumbing provides residential plumbing services throughout Altadena and the surrounding San Gabriel Valley.
Licensed Plumbing Contractor — CA License #1107926