In Business Since 1993

Tankless Water Heaters in Columbus, OH

Hot water that doesn't run out and a unit on the wall instead of a tank on the floor. We install, repair and descale tankless water heaters across Columbus, and we'll tell you honestly if your home is a good fit before you spend anything.

Plumber working on the copper water lines of a wall-mounted tankless water heater in a basement
The Basics

How a Tankless Water Heater Works

A tankless water heater heats water only when you open a hot tap. Water runs through a heat exchanger, a gas burner or electric element heats it on the spot, and it flows to the fixture. There's no tank to keep hot around the clock, so you don't run out halfway through a shower. The tradeoff is that the unit has to be sized for how much hot water you use at the same time, and it needs the gas supply, venting or electrical service to match.

Know Your Options

Tank vs. Tankless: Which Fits Your Columbus Home?

Neither one is right for every house. Here's how they compare:

Tank Water HeaterTankless Water Heater
Hot water supplyLimited to the tank sizeContinuous, up to the unit's flow rate
SpaceTakes floor space in the basementMounts on the wall
Typical lifespanAbout 8 to 12 yearsOften longer with regular descaling
What the install may needUsually a straight swapA bigger gas line, new venting or electrical work
Upkeep with Columbus waterA yearly flush for sedimentRegular descaling for scale

We look at your household, your gas or electric service and your venting before recommending either.

Local Knowledge

Tankless in Columbus Homes

Tankless works well in plenty of Columbus homes. A few local details decide how well it works in yours.

Scale and Descaling

Columbus water is moderately hard to hard, between 98 and 125 milligrams per liter in 2025 depending on the plant. Minerals build up in a tankless heat exchanger, so regular descaling is part of owning one here.

Gas Supply in Older Homes

A gas tankless unit can need much more gas at full fire than the old tank. In older homes, that often means upsizing part of the line. See gas line installation.

Venting Out the Side Wall

Most gas tankless units vent through the wall instead of the chimney. On brick homes with close neighbors, we plan the vent location carefully to meet code.

The J. Blanton Difference

What Happens When You Call J. Blanton

The right tankless install starts with an honest answer about whether it fits.

1. We Check the House First

Gas supply, venting route and, for electric units, the panel. You'll know what's needed before you get a price.

2. Both Options, Side by Side

Tank and tankless, what each costs to install and run, and how long each should last.

3. Flat Price, Clean Install

One number before work begins, and a clean space when we're done.

614-547-6516
J. Blanton plumber in shoe covers on a home's front steps with a sewer camera
Customer Stories

Tankless Water Heater Reviews

4.7 stars from 5,669+ Google reviews across all J. Blanton locations.

"Couldn’t recommend J. Blanton enough. Thomas came to replace a tankless heater and was so knowledgeable and friendly. We will be using them for all plumbing services moving forward!"

Alison Rebello
Verified Customer

"Christian was very thorough and friendly assisting with my tankless water heater maintenance."

Deanna Serpico
Verified Customer

"Christian serviced out tankless water heater. Excellent service highly recommend!"

Brian Bilicki
Verified Customer
Got Questions?

Tankless Water Heater Questions From Columbus Homeowners

Often, for larger households. Older homes may need gas or venting work first.

For many households, yes: continuous hot water, more floor space and a longer life with regular descaling. The install costs more when an older home needs a bigger gas line or new venting, so we show you exactly what yours needs before you decide.

Often about once a year, depending on use. We'll set a schedule for your unit.

It depends on how much hot water you use and the unit, but many homes here descale about once a year. Columbus water is hard, so skipping it lets scale build up and cuts the heater's output.

Yes. Scale, ignition and error codes are the most common issues.

Yes. Common problems include scale buildup, ignition or flame sensor issues, error codes and venting problems. Regular descaling prevents many of them.

It depends on the unit and any upgrades. You get a flat price first, and financing is available.

It depends on the unit, any gas, venting or electrical upgrades and where it's mounted. We give you a flat-rate price before any work begins, and financing is available.

Annual Protection Plan

Join the No Drip Club

Most plumbing problems start small. The No Drip Club brings a J. Blanton plumber to your home for regular maintenance, so small issues get caught before they turn into big repairs.

  • Two Free Professional Maintenance Visits per Year
  • 10% Discount on All General Plumbing & Sewer Services
  • 5-Year Parts and Labor Warranty on Approved Projects
  • VIP Priority Scheduling Status (Skip the Queue)
Learn More About the No Drip Club
No Drip Club mascot: an illustrated J. Blanton plumber holding a red pipe wrench
What We Fix

Plumbing Services in Columbus

Plumber feeding a drain cleaning cable into an outdoor drain pit to clear a clogged line

Drain Cleaning

Slow, gurgling or backed-up drains in kitchens, bathrooms and basements.

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J. Blanton plumbers working a sewer lining machine connected to the cleanout at a residential sewer repair

Sewer Repair

Tree roots, cracked clay pipe and repeat backups in the line from your house to the street.

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J. Blanton plumber checking the controls at the base of a basement water heater

Water Heaters

Repair and replacement for tank and tankless water heaters that leak, make noise or run out of hot water too fast.

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J. Blanton plumber working on the wiring of a basement sump pump pit

Sump Pumps

Sump pump repair, replacement and battery backups to keep your basement dry through heavy rain.

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Water spraying from a split copper pipe along a basement foundation wall

Burst & Frozen Pipes

Repair for pipes that froze or burst, from basement water lines to outdoor spigots.

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J. Blanton plumber leaning over an open toilet tank to check the fill valve during a toilet repair

Toilets & Fixtures

Running toilets, leaky faucets and new fixture installs for kitchens and bathrooms.

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Local Office, 24/7 Phone

Thinking About Going Tankless?

Our Columbus office is at 1387 W. Goodale Blvd, and our phone line is open 24/7.

We also serve Grandview Heights, Upper Arlington, Clintonville, Victorian Village, German Village, Bexley, Hilliard, Dublin and more.

Call Now: 614-547-6516
Need a Plumber?Call our Columbus Office
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