Plumbing for homes and businesses in Salinas and the Monterey Bay AreaPlumbing repair around Salinas, CA
ASC Plumbing
Tankless water heater on a garage wall with white PVC vent pipes
Our Services

Tankless Water Heaters in Salinas, CA

Tankless Water Heaters · Salinas, CA

Hot water while the tap runs, sized to your home

A tankless water heater has no tank of hot water waiting. It heats water only while a hot tap runs. A sensor picks up the flow and turns the heat on, and the heat shuts off when the tap closes. That skips the heat a tank loses while it sits.

As a plumber in Salinas, ASC Plumbing installs tankless water heaters for homes and businesses around the Monterey Bay Area. We handle conversions from a tank, and we repair and flush units already on the wall. Would you rather keep a tank? We do water heater installation as well.

What We Handle

  • Tank to tankless conversions for homes and businesses
  • Sizing by peak hot water use and winter water temperature
  • Gas line sizing for the heater at full fire
  • New vent runs built to the maker's manual
  • Condensate drain lines, with a neutralizer where one is called for
  • Isolation valves on the water lines for later flushing
  • Descaling flushes and inlet water filter cleaning
  • Error code diagnosis and ignition part repair

Request a Tankless Water Heaters Quote

Tell us about the leak, clog, water heater or repipe and where the property is. We look at the job and put the quote in writing.

What does a tankless water heater installation need?

Sizing comes first. The Department of Energy says to size a unit by the most hot water used at one time. It also depends on the heat rise, from cold winter water up to your set temperature.

The gas line has to keep up, and one maker's installation manual sets the rule. The line must feed the heater at full fire and every other gas appliance at once. The line that fed an old tank may be too small for that.

An indoor unit gets a new vent. That manual says it must not tie into an existing vent or chimney. Condensing units usually vent through plastic pipe and need a drain for the water they make. On the water side, isolation valves go in so the unit can be flushed later.

How often does a tankless water heater need a flush?

Tankless water heater maintenance clears out the scale that builds up inside the unit. Hard water leaves minerals in the heat exchanger, and a high temperature setting speeds that up. One maker's manual calls for a yearly inspection by a trained professional. It warns that skipping the flush will damage the heat exchanger.

How often depends on your water, and that manual says hard water may call for more frequent flushing. Marina Coast Water District says its well water carries increased hardness from natural minerals. The district recommends regular flushing for a tankless or tank water heater, as the maker advises. Your own water provider's yearly report lists your hardness.

A flush shuts the water off at the isolation valves and hooks a small pump to the service valves. The pump moves a descaling solution, such as food-grade white vinegar, through the unit for at least an hour. Fresh water then rinses it out, and the inlet water filter gets cleaned. Some units can show a service reminder on the display when a flush is due.

Tankless water heater repair in Salinas and around the Monterey Bay

A tankless unit often flags a problem with an error code on its display. We read the code and trace it to the cause. Causes can include a clogged inlet filter, scale in the heat exchanger, a blocked vent and a full condensate trap.

Ignition faults can trace to parts such as the igniter, the flame rod, the gas valve or the circuit board. Some repairs are a cleaning, and some need a new part. A heater with a tank falls under water heater repair instead.

Salt air adds wear near the coast. One maker's manual says coastal installs may need extra upkeep because of airborne ocean salt. If the cabinet shows corrosion, it calls for an inspection and a repair or replacement as needed. Homes on the Monterey Peninsula and along the bay get that salt air.

Tankless water heater on a plywood backer with copper water lines and a gas line Tankless water heater with its cover off for descaling, hoses running to a bucket

Ready to get started?

Call or text for a written quote. We work about 35 miles around Salinas across Monterey, Santa Cruz and San Benito Counties.

(831) 262-9943
How We Work

How a Job With ASC Plumbing Runs

From the first call or text to the finished work, here is how it goes.

1

Call or text

Call or text (831) 262-9943 and describe the problem. Let us know the town and whether it is a home or a business.

2

We find the cause

We come out and find what is causing the problem. A wet ceiling or a slow drain gets traced back to its source.

3

The written quote

You get the quote in writing, with each part of the work listed. The work starts once you say yes.

4

The work

We shut the water off where the job needs it. Then we do the work the quote describes.

5

The final check

We turn the water back on and test the work for leaks. Then we go over the finished job with you.

FAQ

Tankless Water Heaters Questions, Answered

Common questions about tankless water heaters around Salinas and the Monterey Bay Area. If yours is not here, call or text and ask.

Call (831) 262-9943

Can you replace my tank water heater with a tankless one?
Yes. The tank comes out, and the tankless unit mounts on a wall inside or outside. The extra work is usually in the gas line and the new vent. Your city or county building office answers the permit question for your address.
Will one tankless unit keep up with two showers at once?
It can, if it is sized for that. We size it by the fixtures you run together and the heat rise your water needs. Run more than it was sized for, and it cannot keep every tap at full heat. Some homes with heavy use run two units linked together.
Why does my tankless water heater run hot, then cold?
A tankless unit needs a minimum flow to fire. One maker's manual says flow near that minimum can cause hot and cold swings. Try opening the hot tap wider. If the swings keep coming, scale or a sensor may be the cause.
Does a gas tankless water heater need electricity?
Yes. A gas unit needs grounded 120-volt power to run its controls and fan. When the power goes out, it stops making hot water. Its freeze protection runs on that power too.
Can a tankless water heater be installed outside?
Yes. Outdoor models mount on an outside wall, with clearances from doors and windows set by the maker. Near the ocean, one maker's manual says to shelter the unit from the sea breeze. The unit has its own freeze protection, but the pipes outside it should be insulated.
How much does tankless water heater installation cost?
Price depends on the unit's size and on the gas line and vent work your house needs. We look at the job and put the quote in writing. Market numbers are in our guide to tankless water heater cost in California. To get your quote, call or text (831) 262-9943.
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Why Choose ASC Plumbing

Plumbing for Homes and Businesses Around Salinas

Plumbing is all we do

We work in one trade. Pipes, drains, fixtures and water heaters make up the whole job list, at homes and at businesses.

The quote in writing

We look at the job before we price it. Then the quote comes to you in writing, with the work spelled out.

Salinas at the center

Our service area reaches about 35 miles around Salinas. It takes in the Salinas Valley, the Monterey Peninsula, Hollister and the Santa Cruz County side of the bay.

Guides and Resources

Tankless Water Heaters Guides

Request a Quote

Get In Touch With ASC Plumbing

Tell us what is going on with the plumbing and the town the building is in. Call or text (831) 262-9943 or use the form, and we will get back to you.

Request a Quote

Tell us about the leak, clog, water heater or repipe and where the property is. We look at the job and put the quote in writing.

Call (831) 262-9943