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No, with the main shut off, no water can be taken from the heater so it will just sit there. <<
If the flame is left on and not set to pilot or shut off it can be Very dangerous....
Unlike a boiler that has operating controllers and safety devices such as a low water cut off a residential heater has only an operating controller (aqua-stat ) and the only protection is the T&P which is a last resort.
Suppose the water heater is above any tap and the tap is opened, the tank will drain water and now you have an air pocket that can cause a very violent explosion when the heater fires and compresses the air.
Unlike a steam boiler which has a Hartford loop to help protect against dry firing a water heater has no such protection and if a valve is open or a pipe leaks water WILL BE TAKEN FROM THE HEATER
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How do you change out a Unitrol gas control valve on a hot water heater?
By shutting off the gas supply draining down the tank removing all the connections
What causes an empty water heater?
No water supply
How do you replace a gate valve on a domestic water system?
By shutting off the water supply and replacing the valve
How do you change a angle valve?
By shutting off the water supply prior to this valve of course
Do you have to turn off the gas if you turn off the water supply to the house?
YES and No Yes if you are going to be working on the gas water heater and No if you are working on a cold water line and if you are working on a hot water line you can shut off the gas or electric to the water heater so in case your water heater drains but what I usually do is just turn the water heater's water supply valve off.
Is it dangerous to use electric heater in room with oxygen?
No, that is perfectly fine as it is an electric heater, However if you had water near the electrical appliance, that would be dangerous.
Can a hot water heater siphon to cold water faucet?
A hot water heater is designed to supply hot water to faucets, not cold water. It is not possible for a hot water heater to siphon into a cold water faucet. Each faucet is connected to either the hot or cold water supply lines, which are separate in a plumbing system.
Can you replace a modular home water heater with a regular gas water heater?
If your modular home has a regular gas supply that is a satisfactory way to do it.
Is a leaking water heater at home dangerous?
Yes, especially if it is electric.
How do you get rid of dirt in bottom of hot water heater?
Why would anyone put dirt in a water heater ?? Normally water heaters have sediment from the minerials in the water supply and the instructions furnished with the heater tells how to cure this problem
Who do you go for a hot water heater leaking problem?
Yes, if your hot water heater is leaking, you need to call a plumber. A leaky water heater can be very dangerous and needs to be taken care of as soon as possible.
Will we run out of hot water with the Bosch AquaStar 2400ES-NG (Natural Gas) Tankless Water Heater?
Bosch AquaStar 2400ES-NG (Natural Gas) Tankless Water Heater will provide a endless supply of water heater.
