Tankless Water Heater Installation & Repair in San Clemente, CA

The Passionate Plumber installs, repairs and maintains tankless water heaters for homeowners in San Clemente, CA, so hot water keeps up with a full house and the unit lasts as long as it should.

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Endless hot water, installed properly

The Passionate Plumber: Tankless Water Heaters in San Clemente, CA

Tankless Water Heater Installation: We size the unit to your household's peak demand, upgrade gas and venting where needed and install isolation valves so it can be serviced easily.
Tank-to-Tankless Conversions: Replacing an old tank frees up garage or closet space and ends running out of hot water halfway through the second shower.
Tankless Water Heater Repair: Error codes, ignition failures, fluctuating temperatures and low flow are diagnosed and repaired, often in one visit.
Descaling Flush: An annual flush clears the mineral scale that builds up inside the heat exchanger and quietly cuts efficiency.

Why maintenance matters here

Why San Clemente Tankless Owners Need Regular Service

Hard Water Builds Scale: South Orange County water carries a heavy mineral load. Scale coats the heat exchanger, triggers error codes and shortens a tankless unit's life.
Efficiency Pays Off: A properly sized and maintained tankless heater only runs when you use hot water, cutting standby energy loss compared with a tank.
Pair It With Filtration: A softener or scale-reduction system upstream of the heater protects the investment and reduces how often it needs descaling.
Warranty Protection: Most manufacturers expect regular maintenance. Keeping records of annual flushes helps protect your warranty coverage.

FREQUENTLY ASKED ・ ANSWERS TO YOUR QUESTIONS

Frequently Asked Questions About Tankless Water Heaters in San Clemente, CA

What to know before switching to tankless, and how to keep an existing unit running well.

How often should a tankless water heater be flushed?

With South Orange County’s hard water, once a year is a good baseline. Homes without a softener may benefit from more frequent service.

Can a tankless heater supply my whole house?

Yes, when it is sized for your peak demand, such as two showers and a dishwasher running at once. We size every unit to the home rather than to a catalog.

Why is my tankless showing an error code?

Common causes are scale buildup, gas supply or venting problems, and flow sensor issues. Many are fixed with a flush or a part replacement.

Do you install tankless water heaters outside San Clemente?

Yes. We install and service tankless units in Dana Point, San Juan Capistrano, Ladera Ranch and across South Orange County.