No, cold water is piped into the hot water tank and is heated by electricity or gas, it then flows out to the hot water taps.
The isolation valve should (must) be placed on the cold water side (and/or the return side), entering the water heater. Placing the isolation valve on the hot or outlet side of the water heater has the potential of creating a bomb.
the hot water valve shut off valve shuts off the hot water. The cold water valve shuts off the cold water. ;()
Normally Hot
It's probably because the tap washer is made of the incorrect material for a hot tap which must have a degree of temperature resistance. If not, the tap washer could swell and expand when the hot water flows, thus cutting off the flow.
Standard instillation of a washer identifies the valve s as hot on the left, cold water on the right. In any water instillation, the standards are hot on the left and cold on the right.
It is a matter of density cold water is denser(compact) that hot water. thus cold water will flow faster than less dense(loose)hot water.
choices are: The cold will flow from the metal into the hot water, causing the hot water to warm up and the metal to cool down. b. The energy from the hot water will flow into the cold metal, cooling the water down and heating up the metal. c. The cold will flow from the metal into the hot water, causing the hot water to cool down and the metal to warm up. d. The metal will cool down because the specific heat of water is high.
a "Spring"
When you flush your toilet, cold water is used, this diverts cold water from the sinks and showers, resulting in diminished cold water flow momentarily at the sinks and showers, so, less cold mixed with hot, = hotter sinks and showers.
Cold water is denser then hot water and weighs more so hot water will always stay on top of cold water no matter the pressure in the line or volume unless forced by flow hot water water will always be on top.
Water droplets will start evaporating on contacting the pan bottom, and they will tend to "dance" on the produced steam.
When the weather is cold, the water or refrigerant heats up as it travels through the part of the loop that's buried underground.
Not being able to see the pipe and not knowing where it is, it's kind of hard to know. If it is a cold water line and you have not shut off the hot water tank, the pressure from the hot water will back flow and hot water will come out of the cold side.
It will flow to the cold substance
First make sure that the hot and cold supply lines (the plumbing) aren't backwards (hot should be on the left as you are facing the faucet) or that someone accidentally ran two hot lines. For the problem to be in the faucet itself you would have to have a single handle faucet. If this is the case the control valve is broken and should be replaced. Three handle Left= Hot Water Flow. Right= Cold Water Flow Center= Controls whether the water comes out the shower head or tub faucet. Two handle Left= Hot Water Flow Right= Cold Water Flow (Diverter Valve is elsewhere if it's a tub/shower) Single handle One handle controls both water pressure and temperature
Water can be hot or cold if you want
Thermostat or water flow problem.