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Storage and tankless water heaters

Water heater repair and installation in Oklahoma City

Arnold's Plumbing, Heating & Air provides water heater repair, replacement and installation in Oklahoma City and the surrounding metro. The team works with storage and tankless systems. Tell us about lost hot water, leaks or changes in performance so we can discuss the next step.

LOOK INSIDE / HOW IT WORKS

Tank or tankless. See how each works.

Choose a storage or tankless heater.
Turn the model and follow each heating step.

Storage water heaterSee this in Your Home ↗
Illustrated 3D model of the storage water heater in a room setting, with its parts in place

Read the explanations below, or load the interactive model.

Cold supplyHot supplyWaste / vent

Illustrative cutaway. Layouts vary; not a repair schematic.

Read the plumbing explanations

Storage water heater

A storage water heater warms water and holds it in a tank. Hot-water pipes carry it to your showers, sinks, and appliances.

  1. Cold water enters. Incoming cold water travels down a dip tube toward the bottom of a storage tank.
  2. Water is heated. This cutaway illustrates an electric storage heater. Heating elements warm the stored water; other heaters use a burner.
  3. Hot water leaves. Hot water is drawn from the top when a hot tap opens. Incoming cold water replaces it.
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Tankless water heater

A tankless heater warms incoming water as you use it. This gas-fired example shows the flow sensor, heat exchanger and hot outlet inside a wall-mounted unit.

  1. A hot tap opens. Water begins moving through the heater. A flow sensor detects demand and signals the unit to start heating.
  2. Heat transfers to the water. In this gas-fired example, a burner heats the exchanger. Water passes through it while the vent carries combustion exhaust outside.
  3. Hot water reaches the tap. Heated water leaves through the hot outlet. Heating stops when demand stops; delivery at the tap also depends on the pipe length.
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Questions about water heaters

Can Arnold's Plumbing, Heating & Air repair or replace my water heater?

Arnold's Plumbing, Heating & Air provides water heater repair, replacement and installation. Tell the office whether you have a storage or tankless unit, the symptom and any equipment information you can read without opening the unit.

What is the difference between storage and tankless water heaters?

A storage water heater heats water in a tank. A tankless heater heats water as it flows through the unit. Household demand and the existing installation matter when comparing options; the illustrations above explain how each system works.

Water-heater equipment pictured on the business website WATER HEATERS / ARNOLD'S PLUMBING, HEATING & AIR

A few useful things to share

01 Is the water cold everywhere, or at one fixture?

02 Do you know the age or type of your current heater?

03 Have you noticed water around the unit?

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