Call or Text: (360) 949-2330

Tankless Water Heater Installation in Vancouver, WA

Navien and Rinnai tankless water heaters, sized for your house and installed by Jeremy himself. Free estimates on all jobs.

Licensed, Bonded and Insured  ·  WA License JEREMPL810QE  ·  Owner Operated  ·  Free Estimates on All Jobs  ·  Financing Available

A tankless water heater does not store hot water. When you open a hot tap, cold water runs through a heat exchanger, the burner fires, and the water comes out hot for as long as the tap stays open. Close the tap and the unit shuts off.

That is where the endless hot water comes from, and it is also where the limit is. A tankless unit is sized by how many gallons a minute it can heat at once, not by how much it holds. Get the size right and nobody in the house notices it. Get it wrong and the shower goes lukewarm when the dishwasher starts. Sizing is the part we take the most care over.

Jeremy’s installs

Navien & Rinnai Tankless Water Heaters

Looking for a tankless water heater installation in Vancouver, WA? Jeremy’s Plumbing installs and replaces high-efficiency Navien and Rinnai tankless water heaters throughout Vancouver and Clark County.

Tankless water heaters provide continuous hot water on demand while taking up less space and improving energy efficiency compared to traditional tank-style units. We can help properly size your new system based on your home and hot water needs.

As an owner-operated plumbing company, you’ll work directly with Jeremy from the estimate through installation. We also provide tankless water heater repair, maintenance, and replacement for existing Navien and Rinnai systems.

Is Tankless Right for Your House?

Hot water that keeps going

Water is heated as it flows, so back-to-back showers do not drain a tank and leave the last person waiting.

Floor space back

The unit mounts on the wall, so the space a 40 or 50 gallon tank took up is yours again.

No tank kept hot all day

A tank reheats its water around the clock whether anyone uses it or not. A tankless unit only runs when a tap is open.

Longer service life

A conventional tank typically lasts 8 to 12 years. Tankless units often run longer, especially when they are descaled on schedule.

No tank to give out

A worn-out tank can empty 40 or 50 gallons across the floor. A tankless unit holds very little water.

The honest trade-off

Tankless costs more up front than a tank. For a small household that rarely runs out, a good tank can be the better value, and we will say so.

What a Tankless Installation Includes

  • Sizing by flow rate and household demand
  • Permit pulled for the installation
  • Draining and disconnecting the old water heater
  • Removal and disposal of the old unit
  • New unit mounted on the wall
  • Gas supply checked, and the gas line upsized when the new unit calls for it
  • Venting changed or updated to meet the new unit’s requirements
  • Water and gas connections
  • Condensate drain on condensing units
  • Temperature and pressure relief valve and discharge pipe
  • Filled, purged and tested
  • Temperature set and controls explained
  • Work area cleaned up

The Tankless Brands We Work On

  • Navien: new installs and replacements
  • Rinnai: new installs and replacements
  • Existing Navien or Rinnai: repair, maintenance and replacement
  • Another brand in mind: ask, we have access to all of them

Sizing a Tankless Water Heater

A tankless unit is sized by how much hot water the house asks for at the same moment. Winter makes it harder: colder water coming in means the unit has to work harder to deliver the same temperature.

One fixture at a time

A shower uses about 2 gallons a minute. Most tankless units handle one fixture comfortably.

Two showers at once

Around 4 to 5 gallons a minute. This is where sizing starts to matter.

A busy household

Several bathrooms, a dishwasher and laundry running together call for a larger unit.

Not sure

Tell us how many bathrooms you have and how the house uses hot water. We will size it.

Keeping a Tankless Unit Running

Minerals in the water collect inside the heat exchanger over time. Left alone, that scale cuts efficiency and can eventually stop the unit with an error code. Manufacturers call for periodic flushing to clear it, and how often depends on your water and how hard the unit works.

We maintain, repair and replace existing Navien and Rinnai systems, whether we installed them or not. If your tankless unit is showing an error code or the hot water has become inconsistent, call or text and tell us what it is doing.

How It Works

1. You call or text

Tell us what you have now and what is going wrong with it.

2. We assess and size

We look at the gas supply, the venting route, the space and how the house uses hot water.

3. Free estimate

The unit, the work and the number, before anything starts.

4. We install

Old unit out and away, tankless unit mounted and connected.

5. Test and clean up

Filled, purged, tested, and the controls explained.

Areas We Serve for Tankless Water Heater Installation

Vancouver · Salmon Creek · Hazel Dell · Walnut Grove · Orchards · Felida · Battle Ground · Brush Prairie · Ridgefield · Camas · Washougal

Tankless Water Heater Questions

Will a tankless water heater run out of hot water?
Not the way a tank does. It heats water as it flows, so it will not run dry partway through a shower. What it can do is fall behind if more hot water is asked of it at once than it was sized for, which is why we size it carefully.

Is tankless worth the extra cost?
It depends on the house. Tankless suits homes with heavy or overlapping hot water use, or where space is tight. For a small household that rarely runs out, a good tank is often the better value. We will tell you honestly which applies to yours.

How long does a tankless installation take?
Longer than a like-for-like tank swap, because a tankless unit mounts differently and has different gas and venting requirements than the tank it replaces. Where the new unit calls for it, we upsize the gas line and update the venting as part of the job. We will give you a realistic time frame with your estimate.

Do you pull the permit?
Yes. We pull the permit for the water heater installation. It is part of the job, not something we hand back to you.

How long does a tankless water heater last?
A conventional tank typically lasts 8 to 12 years. Tankless units often run longer, especially when they are descaled on schedule.

Does a tankless unit need maintenance?
Yes. Minerals in the water build up inside the heat exchanger over time, so manufacturers call for periodic flushing, often called descaling. How often depends on your water and how hard the unit works. We handle maintenance on Navien and Rinnai systems.

Do you repair tankless water heaters?
Yes. We repair, maintain and replace existing Navien and Rinnai systems, including ones we did not install.

Which tankless brands do you install?
Navien and Rinnai. We have access to other brands too, so if you want something specific, ask.

Do you warranty your work?
Yes. Water heater installations carry a two year warranty on our labor, double the one year minimum we put on every other job. The unit itself carries its manufacturer’s warranty, which varies by brand and model.

Do you charge for an estimate?
No. We give free estimates on all jobs.

Do you offer financing?
Yes. We offer financing through Affirm. The invoice we send you carries an option to pay over time instead of all at once, and Affirm sets the terms.

Request a Free Estimate

Tell us what is going on and we will get back to you. Prefer to talk? Call or text (360) 949-2330.

Thinking About Going Tankless?

Free estimates on all jobs. Licensed, bonded and insured. You deal with Jeremy, start to finish.