Before turning off your gas water heater, make sure the area is clear. Remove combustible items that could spark if they come into contact with the exposed flame of the burner. A clear space also provides easy access to the shut-off valve and control box.
There are several reasons why you may need to turn off the gas supply to your water heater. For example, if you are planning to replace a water heater, you will need the gas off to do so. Still, there are more important—and more urgent—reasons you may need to do this.
Step 1: Turn Off the Heating Source
You should turn off your water heater's heat source before flushing it to reduce the risk of scalds.
For your safety, DO NOT turn off your natural gas at the meter unless your house piping is known or suspected to be leaking and believe yourself to be in danger, and ONLY if it's safe to do so. If possible, shut off any accessible isolation valve at the appliance(s) if a leak is known or suspected at an appliance.
No. In fact, the pilot light is part of a safety system that shuts down the gas to the rest of the system. Think of it as a deadbolt on a door. Pilot lights work hand-in-hand with a flame detection sensor, either a thermocouple or an electronic sensor.
If you are going to do maintenance on your water heater such as flushing your water heater, you should turn off your pilot heater to prevent heating an empty tank or if you are leaving for vacation or leaving the house vacant for a long time, it may be beneficial to turn of the pilot light to save energy cost and to ...
Gas safety
Do not attempt to turn your gas on if the gas supply has been off for a long period of time. Have a Registered Gas Installer inspect your appliances and installation pipework first.
In a gas emergency, such as a suspected gas leak, you will be advised to turn off the gas supply. You will also need to open windows and doors to ventilate your property. You should not to turn on any power or switches, light any flames or use any appliances that could cause a spark.
Yes, if either the shutoff valve or the “city side” of the gas line is faulty. (Obviously there will not be a leak inside the house, but there can still be gas escaping into the local environment.)
No, unless you're going on vacation for a month or longer, you shouldn't turn off your water heater. Here's why: You won't see significant energy savings. You'll create more problems by turning your water heater off/on repeatedly.
If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself.
Standard natural gas water heater
The dial at the bottom of the appliance can be set to VACATION or to the lowest setting. You can also shut off the cold water supply to the water heater to limit any damage in case the tank leaks. Upon your return, do a visual inspection of the appliance.
It is essential to shut off your gas to ensure that the water is cold when you drain it and to reduce any chance of a gas leak. If your water heater runs on electricity, cutting off power can be performed from the circuit breaker to prevent any electrical issues from arising while working.
If you have figured out that the leak is actually coming from your water heater, then you should turn off the water to your tank. Most hot water tanks have a shutoff valve on the cold inlet pipes. Gate-style valves: A gate valve looks like a little wheel.
Electric water heaters rely on electricity, while gas water heaters use natural gas or propane. In terms of the heating mechanism, electric water heaters typically employ both upper and lower heating elements. These elements are submerged in the water and directly heat it.
There are a few scenarios when you might need to turn off your gas water heater. These include times of maintenance, interruptions in the water supply, or if you suspect a leak.
Fortunately, switching off your boiler at the mains is perfectly safe.
Locate your main gas service shutoff valve. It's usually the first fitting on the natural gas supply pipe coming out of the ground next to the meter. With a wrench, turn the lever in either direction until it is crosswise to the pipe. Once the gas is turned off, leave it off.
If you have a gas water heater in your Glendale home and the gas is turned off for any reason, you will need to relight the pilot light before the unit can start heating again. In gas water heaters, the pilot light works to ignite the gas coming into the unit so it can be burned to heat up the water.
Gas and electric service cannot be disconnected if forecast predicts a temperature of 32 or lower during the next 24 hours. No disconnect for elderly or disabled when temperature is >95, or medical emergency. No disconnect if customer agrees to deferred or extended payment agreement.
Next, ventilate your home by opening windows and doors. This prevents the gas building up and – if you've shut off the gas supply – should ensure it dissipates harmlessly.