Should I Turn Off The Water Heater If The Water Is Off

When your water line is shut off, cold water stops flowing into your home entirely, and if your water heater has a tank, the tank will stop refilling with bloodless water. In case your water is shut off for lengthy intervals of time and you employ your warm water heavily, this may create the chance of significant damage.

You ought to turn off your water heater if the water is off only if your water is turned off for a long interval of time, like a vacation, and you’ve a tank-type or hybrid water heater. For brief time period shutoffs, you could depart your water heater on until the bloodless water starts offevolved flowing in again.

This article will talk about the sorts of water heaters, how they hook up with a water line, and what to do if you would like to shut your water off or adventure a shutoff for any reason.

How Water Heaters Work

The water that enters your house through a water line and the linked pipes is usually bloodless or cool, even in the summertime. That you can have hot water in the home, the water ought to be heated after it’s brought during the pipes.

Water heaters are usually found in a home’s basement and require a fuel or electrical heating unit. There are 4 straight forward types, each of which performs this same operate in several ways. The four hassle-free types are:

Tank-Type Heaters

Tank-type warmers are the hottest sort of water heater. Basically, it is composed of an insulated tank packed with water, above or beside a gas or electrical heating mechanism. The cold water enters the lowest of the tank, then rises as a fuel flame or electrical factor heats up the water. A pressure-relief valve continues the heater from fitting too pressurized.

When an appliance or faucet wants warm water, the water tank pumps warm water out in the course of the exact of the tank, then replaces it with new, cold water on the bottom. Although this technique repeats continually, those warmers can usually battle to maintain with excessive demands for hot water.

Tank-type heaters additionally use power constantly to keep the water in the tank warm even when it’s not needed, which makes them much less efficient than some alternatives.

Tankless Water Heaters

Tankless water heaters are much smaller than the tank-type heaters because they do not store water. Instead, the heater waits for a hot-water tap or equipment to call for warm water, then initiates an electric element or fuel burner and draws cold water straight over the heating mechanism and to wherein it is needed.

Tankless water warmers final for much longer than tank-type warmers and produce an infinite supply of warm water, yet are a lot more highly-priced to purchase, install, and repair.

Hybrid Water Heaters

Hybrid water warmers use less energy than a tank-type heater, but more than a tankless water heater. Essentially, the hybrid works with the aid of storing water in a tank connected to an air compressor, which captures warmness from the encircling air and transfers it to the cold water, instead of using a fuel flame or electrical elements.

Point-of-Use Heaters

Point-of-use heaters are small and compact and are generally used in mixture with the most water heater. Generally, point-of-use warmers are mounted at fixtures a long way far from the most heater to avoid walking the water and expecting the water to grow to be warm. Those electrically powered models heat the water instantaneously, eliminating wait time.

Point-of-use warmers often last decades and might be installed very quickly and easily, yet cannot update a first-rate water heater within the home.

How the Home Water Line Works

If your house is hooked up to a town water line, then your water leading might be diagnosed through locating a ½” to 1½ ” pipeline close your water meter. You may or may not also see an emergency shutoff valve, which would bring to an end all water headed into your plumbing system. If your home is connected to a water well, your system may appear a bit different, but the function is the same.

The water that enters your house via the main water line is pressurized, which allows it to travel opposed to gravity through your pipes. This means that water can flow very quickly, no matter if from a faucet, hose or through a damaged pipe in the case of an accident. If you do have a damaged pipe, it’s significant to apply your emergency shutoff valve to restrict heavy flooding.

Water leaves the house by means of separate drainage systems, which use gravity to drag water down, making a pass that incorporates wastewater via pipes and to a sewage remedy facility or septic tank.

The Water Line and the Water Heater

Water that enters your house is bloodless and travels via bloodless water pipes. One of these pipes connects to the water heater. Your water heater also connects to a hot water line, in which water flows out to unique home equipment and taps. Water flows into and out of the heater as needed.

What Occurs to the Water Heater Whilst Your Water Is Became Off?

When your water is became off, bloodless water stops flowing into your plumbing technique from the outside, that means that a tank-type or hybrid heater stops with the ability to top off with extra water. Within the case that water is shut off for a protracted period of time, and all the water from the tank is emptied, you need to flip off the water heater to restrict damage.

However, in case your water heater is complete or almost full, you shouldn’t have to turn it off in a short-term water shutoff.

Tankless and point-of-use water warmers don’t have to be shut off after all to a water shutoff, as they don’t run heating parts constantly or carry water in a garage tank.

When to Flip Off Your Water Heater

Turning off your water heater may be necessary in the case of a plumbing emergency, like in the case that your bloodless water line loses pressure and fails to fill the water tank, or in the case that your water tank empties for the other reason.

In other cases, turning off your water heater may be desirable, but now not necessary, like in the case of a leak. Leaks can happen for a number of unique reasons:

  • Loose valves
  • Damaged tank
  • High pressure
  • High temperature
  • Improper drainage
  • Old age

If you’re certainly seeking to save money through avoiding jogging the water heater whilst it’s no longer being used, it’s best to show the temperature down instead of completely turning the unit off. Water heaters may be rough to turn returned on, and you may uncover your self devoid of hot water for longer than you’d like.

If you opt to show off your water heater, just remember to paintings cautiously and recognise your water heater’s parts earlier than making any adjustments. A water heater’s parts are:

  • The shutoff valve stops the move of bloodless water into the water heater and is usually located external and above the unit.
  • The drain valve is generally positioned close the lowest of the tan and empties water and sediment from the storage tank.
  • The strain comfort valve keeps the pressure contained in the tank within secure limits.
  • The heating mechanism may be gas or electric and is the biggest part of the tank to shut off when you are eager about an empty tank following a water shutoff.

To flip off your water heater, following here instructions during this video:


You do not have to shut off your water heater if the water is off in such a lot cases. However, within the not likely case that you’ve had your water shut off for an extended period of time and used all of the water on your water heater tank, then it’s necessary to show off the water heater. While in doubt, name a professional plumber.