Both valves will shut off the hot water to your entire house. Most contractors do not install a valve on both the hot & cold water inlet and outlet to the heater because shutting the cold water feed to the heater is what shuts the hot water off to the system.

Why do I have two shut off valves?

If the fixture uses both hot and cold water, there will be a separate shut-off valve for each line. It’s a good idea for everyone in your home to know where the shut-off valves are in your home. With a quick turn of the valve, you can prevent a small plumbing issue from becoming a giant, expensive mess.

Is there more than one water shut-off valve?





Every home has two main water shutoff valves: one inside the house and the other by where your property meets the street. The simplest way to shut off all water running through your house is to know where the main valve is located inside your house.

Where is the hot water shut-off valve?

Crawl-space with no basement – the shut-off valve typically is located near the water heater or under the kitchen sink, but anywhere is possible. If it is located inside the crawl space, you may want to consider a second valve located in the living space, for example, near the water heater or under a sink.

Do I need shut off valves on hot water heater?

Quote from the video:
Quote from Youtube video: When it comes to a water heater you want to make sure that you can shut off the water before.

How do I turn off my hot water supply?

Just locate the relief valve, usually near or at the top of the water heater. Turn the valve off and air will now be allowed to enter the tank. That’s it!

Which valve is hot water under sink?





Typical plumbing for a kitchen sink includes a drain line and a pair of water lines with shutoff valves under the sink. In most cases, the hot water is on the left and the cold water is on the right.

Does a water heater need 2 shut-off valve?

A water heater has two shut-off valves. A cold water inlet valve (often identified by a blue handle) feeds cold water from the main supply into the water heater. This is the valve to shut off if you need to repair or replace the water heater.

Can you turn off water supply to hot water heater?

If your water is shut off for long periods of time and you use your hot water heavily, this can create the risk of serious damage. You should turn off your water heater if the water is off only if your water is turned off for an extended period of time, like a vacation, and you have a tank-type or hybrid water heater.

How do I turn the hot water off to change a tap?

Quote from the video:
Quote from Youtube video: But if you haven't then there should be an isolation valve on the cold water in direct coming in to the bottom of your cylinder. So you could isolate that valve then go to your tap turn your taps on.

Is it safe to turn off hot water valve?



Does shutting off the water affect the water heater? When you go on vacation, it’s best to also turn off your water heater, as well as the main water supply. Turning off the source of the heat (gas, electric) while you’re away will not damage your water heater.

Is there a stopcock for hot water?

You can usually find the mains stopcock in the vicinity of the kitchen sink. It may be in the cupboard under the sink, or it may be on an adjacent pipe. Turning off mains stopcock will also shut off the water to every outlet in your home.

Where is the hot water shut off valve UK?

Your inside stop valve is inside your house and is normally located just after the water pipe enters the house. This is often under the kitchen sink, but can also be: In an airing cupboard. Under the stairs.

How do you turn off the hot water supply with a combi boiler?



Hot Water Supply



If you have a combi boiler then the hot water is supplied direct, so by closing the mains stop valve it will shut off the water. However, if you have a hot water cylinder this will be an indirect supply and there will be a valve on the pipe from the cold water storage cistern to the hot water cylinder.

How do I turn the hot water off under my kitchen sink?

Under the sink, locate the hot water valve on the left-hand supply pipe and turn it counterclockwise to open it further. If the valve is already as open as possible and the hot water pressure is still inadequate, check for any leaks under the sink or around the faucet.

What are the three valves under kitchen sink?

You may find 2 shut off valves (one each, for hot and cold water) or a three-stop valve for both water supply lines. The 3-way shutoff valve can also be shared between the kitchen sink hot water and the dishwasher. Under your kitchen sink, you should find a shutoff valve for the supply lines.

Why do I have hot water in my bathroom but not my kitchen?

If you’re getting hot water everywhere but your shower, it could be that your anti-scald device is set at too high a limit. Anti-scald devices (also called a “hot limit stop” or “rotational limit stop”) are safety features that most faucets have.